Dell MD3200 manual

Dell™ PowerV ault™ MD3200 and MD3220 Storage Array s Owner’ s Manual Regulatory Model: E03J Series and E04J Series Regulatory T ype: E0 3J001 and E0 4J001 book.book Page 1 Monday, June 21, 2010 11:00 AM[...]

Notes, Cautions, and W arnings NOTE: A NOTE indicates important information that helps you make b etter use of your computer . CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WAR N IN G : A WARNING indicates a potential for property damage, personal injury , or death. ______________ ______[...]

Contents 3 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 17 About This Document . . . . . . . . . . . . . . . . . . 17 Inside the box of the Dell PowerV ault MD3200 Series Storage Array . . . . . . . . . . . . . . 18 Dell PowerV ault MD3200 Series Storage Array . . . . . . . . . . . . . . . . . . . . 18 Dell PowerV ault Modu[...]

4 Contents RAID Controller Module Connectors and Features . . . 30 RAID Controller Modul e—Addition al Features . . . . . 32 Battery Backup Unit . . . . . . . . . . . . . . . . 32 Storage Array Thermal Shutdown . . . . . . . . . 33 Sy stem Password Reset . . . . . . . . . . . . . . 33 Cache Functions and Features . . . . . . . . . . . . . . 34 Ca[...]

Contents 5 Virtual Disk Operations Limit . . . . . . . . . . . . 43 Disk Group Operations . . . . . . . . . . . . . . . . . . 43 RAID Level Migration . . . . . . . . . . . . . . . . 43 Segment Size Migration . . . . . . . . . . . . . . 43 Virtual Disk Capa city Expansion . . . . . . . . . . 44 Disk Group Expansion . . . . . . . . . . . . . . . 44 D[...]

6 Contents 5 Configuration: Overview . . . . . . . . . . . . 59 User Interface . . . . . . . . . . . . . . . . . . . . . . 59 Enterprise Management Window . . . . . . . . . 60 Array Management Window . . . . . . . . . . . . 61 6 Configuration: About Y our Storage Array . . . . . . . . . . . . . . . . . . . . . 63 Out-of-Band and In-Band Management [...]

Contents 7 Setting the Storage Array RAID Controlle r Module Clocks . . . . . . . . . . . . . . . . . . 79 7 Configuration: Event Monitor . . . . . . . . . 81 Enabling or Disabling the Event Monitor . . . . . . . . 82 Windows . . . . . . . . . . . . . . . . . . . . . . 82 Linux . . . . . . . . . . . . . . . . . . . . . . . . 82 8 Configuration: Abo[...]

8 Contents Locating a Disk Group . . . . . . . . . . . . . . . 96 Creating Virtual Disks . . . . . . . . . . . . . . . . 96 Changing the V irtual Disk Modification Priority . . . . . . . . . . . . . . . . . . . . . . . 98 Changing the Virtual Disk Cache Se ttings . . . . . 99 Changing the Segment Size of a V irtual Disk . . . 101 Changing the I/O T[...]

Contents 9 Restricted Mappings . . . . . . . . . . . . . . . . . . . 122 Changing the RAID Controller Module Ownership of a V irtual Disk or a Disk Group . . . . . . . . . . 124 Changing the RAID Level of a Disk Group . . . . . . . . 125 Storage Partitioning . . . . . . . . . . . . . . . . . . . 126 Disk Group and Virtual Disk Expansion . . . . . .[...]

10 Contents About the Advanced Path . . . . . . . . . . . . . 140 Preparing Host Servers to Create the Snapshot Using the Advanced Path . . . . . 141 Creating the Snapshot Using the Advanced Path . . . . . . . . . . . . . . . . . . 143 Specifying Snapshot Virtual Disk Names . . . . . . . 145 Snapshot Repository Capacity . . . . . . . . . . . . . 14[...]

Contents 11 Copy Manager . . . . . . . . . . . . . . . . . . . . . . 159 Copying the Virtual Disk . . . . . . . . . . . . . . . . . 159 Storage Array Performance During V irtual Disk Copy . . . . . . . . . . . . . . . . . . . . . . . . 160 Setting Copy Priority . . . . . . . . . . . . . . . . . . . 161 Stopping a Virtual Disk Copy . . . . . . . . .[...]

12 Contents 14 Management: Firmware Downloads . . . 177 Downloading RAID C ontroller and NVSRAM Packages . . . . . . . . . . . . . . . . . . . . . . . . 177 Downloading Both RAID Controller and NVSRAM Firmware . . . . . . . . . . . . . . . . . . . . . . . . 178 Downloading Only NVSRAM Firmware . . . . . . . . 180 Downloading Phy sical Disk Firmware[...]

Contents 13 RAID Controller Module . . . . . . . . . . . . . . . . . 197 Removing a RAID Controller Module Blank . . . . 197 Installing a RAID C ontroller Module Blank . . . . . 198 Removing a RAID Controller Module . . . . . . . . 199 Installing a RAID Controller Module . . . . . . . . 200 Opening the RAID Controller Module . . . . . . . 200 Closi[...]

14 Contents Virtual Disk Se rvice . . . . . . . . . . . . . . . . 215 V olume Shadow-Copy Ser vice . . . . . . . . . . 215 18 T roubleshooting: Y our Storage Array Software . . . . . . . . . . . . . . . . . . . 217 Start-Up Routine . . . . . . . . . . . . . . . . . . . . 217 Device Health Conditions . . . . . . . . . . . . . . . 217 Storage Array S[...]

Contents 15 Unidentified Devices . . . . . . . . . . . . . . . . . . 236 Recovering From an Unidentified Storage Array . . . . 236 Starting or Restarting the Host Context Agent Software . . . . . . . . . . . . . . . . . . . . . 239 19 T roubleshooting: Y our Array . . . . . . . . . 241 Safety First—For you and Y our Array . . . . . . . . . . 241 [...]

16 Contents PCI Errors . . . . . . . . . . . . . . . . . . . . . 250 Critical Conditions . . . . . . . . . . . . . . . . . 250 Noncritical Conditions . . . . . . . . . . . . . . 251 20 Getting Help . . . . . . . . . . . . . . . . . . . . . . 253 Contacting Dell . . . . . . . . . . . . . . . . . . . . . 253 Index . . . . . . . . . . . . . . . . . . [...]

Introduction 17 1 Introduction See the Safety , Environmental, and Re gulatory Information document for important safety information before foll owing any procedur es listed in this document. About This Document This guide familiarizes you with the functions of the MD 3200 Series stor age array . The gui de is or ganized accor ding to the tasks tha[...]

18 Introduction Inside the box of the Dell PowerV ault MD3200 Series Storage Array Unless specified MD3200 Series repr es ents Dell P owerV ault MD3200 and Dell P owerV ault MD3220. Y our MD3200 Series prod uct package includes: • Dell P owerV ault MD3200 Series storage array • SAS cables • P ower cables (2) • Bezel (optional) • Mounting [...]

Introduction 19 Other Information you May Need WAR N IN G : See the safety and regulatory info rmation that shipped with your sy stem. Warranty information may be in cluded within this document or as a separate document. • Getting Started Guide provides an overview of setting up and cabling your storage array . • Deployment Guid e provides inst[...]

20 Introduction book.book Page 20 Mond ay, June 21, 2010 1 1:00 AM[...]

Planning: About Y our Storage Array 21 2 Planning: About Y our Storage Array Overview The MD3200 Series storage array is designe d for high availability , offe ring redundant access to data st orage. It fe atures support for both single and dual R AID controller configuration. The Dell™ P owerV ault™ MD3200 Series st orage array provides 6.0-Gb[...]

22 Planning: About Y our Storage Array Hardware Features Front-Panel Features and Indicators Figure 2-1. Front-Panel Features and Indicators—Dell™ PowerV ault™ MD3200 Figure 2-2. Front-Panel Features and Indicators—Dell PowerV ault MD3220 1 2 3 5 4 6 1 2 3 4 6 5 book.book Page 22 Mond ay, June 21, 2010 1 1:00 AM[...]

Planning: About Y our Storage Array 23 Figure 2-3. Front-Bezel Features and Indicators Item Indicator , Button, or Connector Icon Description 1 Enclosure sta tus LED The encl osure status L ED ligh ts when the enclosure power is on. Lights blue during normal operation. Blinks blue when a h ost server is identifying the enclosur e or when the system[...]

24 Planning: About Y our Storage Array 3 Split mode LED This LED should be unlit as the split mode function is not supported by the MD3200 Series Storage Arrays. 4 System identification button The system identification button on the front control panel can be used to locate a particular enclosure with in a rack. When the button is pushed, the syste[...]

Planning: About Y our Storage Array 25 Back Panel Feature s and Indicators Figure 2-4. Back-Panel Features and Indi cators—Dell PowerV ault MD3200 Series 1 600W Power supply/cooling fan module 2 RAID Controller Module 0 3 RAID Controller Module 1 4 600W Power supply/cooling fan module 1 2 3 4 book.book Page 25 Mond ay, June 21, 2010 1 1:00 AM[...]

26 Planning: About Y our Storage Array Hard-Drive Indicator Patterns Figure 2-5. Hard Drive Indicators 1 hard-drive activity indicator (green) 2 hard-drive status indicator (green and amber) 1 2 book.book Page 26 Mond ay, June 21, 2010 1 1:00 AM[...]

Planning: About Y our Storage Array 27 Power Supply and Cooling Fan Features The MD3200 Series storage array includes two integrated, hot-swappable power supply/cooling fan modules. Both modules must be in stalled to ensure proper cooling. Each module contains two se parate cooling fans. The syste m r equires at le ast one of the cooling fa ns to f[...]

28 Planning: About Y our Storage Array Power Indicator Codes Figure 2-6. Power Indicator Codes Item LED T ype Icon Description 1 DC power The LED lights green whe n the DC output voltage is within the limit. If this LED is off, it indicates that the DC output voltage ar e not within the limit. 2 P ower supply/cooling fan fault The LED lights amber [...]

Planning: RAID Controller Modules 29 3 Planning: RAID Controller Modules RAID Controller Modules The R AID controller modules provide high-performance, advanced virtual disk co nfigurat ion, and fault-tole ra nt disk subsystem management. Each R AID controller module contains 2 GB of cache that is mirror ed with the other controller's cache fo[...]

30 Planning: RAID Controller Modules RAID Controller Module Connectors and Features Figure 3-1. MD32 00 Series SAS RAID Controller Module Item Component Function 1 SAS OUT port P rovides SAS connection for cabling to a downchain expansion enclosur e. 2 SAS IN port 0 P rovides host-to-controller SAS connection. 3 SAS IN port 1 P rovides host-to-cont[...]

Planning: RAID Controller Modules 31 9 Controller power LED Lights green when c ontroller powe r is on. Off when controller is not powered. 10 SAS IN 0 port link/fault LED Lights gree n when all four links ar e connected. Lights amber when one to thr ee links ar e disconnected. Off when all links in the port ar e disconnected or cable is disconnect[...]

32 Planning: RAID Controller Modules RAID Controller Modu le—Additional Features Battery Backup Unit Each R AID controller contains a two- cell lithium ion nanopolymer battery backup unit (BBU). It provides power to the R AID controller module in the event of a power outage, see "RA ID Co ntroller Module Backup Battery Unit" on page 202[...]

Planning: RAID Controller Modules 33 Storage Array Thermal Sh utdown The system automatically shuts down when system temperature ex ceeds the safe threshold. The battery backup unit protects against data loss by providing power to offload cache to no n-volatile memory in the event of power loss. It is not necessary to shut down any MD1200 Series e [...]

34 Planning: RAID Controller Modules Cache Functions and Features Cache Mirroring Cache mirroring function co pies accepted host-write data from the pri mary controller to the partner controller . This action ensures that host-write data is safely mirrored to the partner cont roller before successful completion status is returned to the host. If a [...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 35 4 Planning: MD3200 Series Storage Array T erms and Concepts This chapter e xplains terms and co ncepts used for configuration and operation of MD3200 Series Storage Arrays. Phy sical Disks, V irtual Disks, and Disk Groups Physical disks in your storage array provide the physical storage[...]

36 Planning: MD3200 Series St orage Array T erms and Concepts Phy sical Disks Only Dell™ supported 6.0-Gbps SAS physical disks are supported in the storage array . If the storage array dete cts unsupported physical disks, it marks the disk as unsupported and the physical d isk becomes unavailable for all operations . NOTE: The MD3200 Series array[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 37 If a disk drive rebuild fails because of a source drive failur e or because the drive is too small, the MDSM r eports a failure of the phys ical disk even though the LED state on the drive indi cates the rebuil d was aborted (green for 3 seconds, amber for 3 seco nds, then off for 3 sec[...]

38 Planning: MD3200 Series St orage Array T erms and Concepts 3 P rovide host server access. 4 Create mappings to associate the vi rtual di sks with the host s ervers. NOTE: Host server access must be cr eated before mapping virtual disks. Disk groups are always created in the un configured capacity of a storage arra y . Unconfigured capacity is th[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 39 Using multiple physical disks has the follo wing advantages over usi ng a single physical disk: • Placing data on multiple physical disk s (striping) allows input/output (I/O) operations to occur simultaneo usly and improve performance. • Storing redundant data on multiple ph ysical[...]

40 Planning: MD3200 Series St orage Array T erms and Concepts RAID 1 RA ID 1 uses disk mirroring so that da ta written to one physical disk is simultaneously written to another physica l disk. This RAID level offers fast performance and the best data availabili ty , but also the highest disk overhead. RAID 1 is r ecommended for small datab ase s or[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 41 Segment Size Disk striping enables data to be wri tten across multiple physical disks. Disk striping enhances performance be cause striped disks are accessed simultaneously . The segment size or stripe element s ize specifies the size of data in a stripe written to a single disk. The MD[...]

42 Planning: MD3200 Series St orage Array T erms and Concepts Consistency Check A consistency check verifies the corr ectness of data in a r edundant array (R AID levels 1, 5, 6, and 10). F or exampl e, in a system with parity , checking consistency involves computing the data on one physical disk and comparing the results to the contents of the pa[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 43 Virtual Di sk Operations Limit The maximum number of active, concurre nt virtual disk processes per R AID controller module installed in the storage array is four . This limit is applied to the following virtual disk processes: • Background initialization • F oreground initializatio[...]

44 Planning: MD3200 Series St orage Array T erms and Concepts Dynamic segme nt size migration enables the seg ment size of a given virtual disk to be changed. A default segment size is set when the virtual disk is created, based on such factors as the RAID level and expected usage. Y ou can change the default value (128 KB) if se gment size usage d[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 45 Disk Group Defragmentation Defragmenting consolida tes the free ca pacity in the disk group into one contiguous area. Defragment ation does not change the way in which the data is stored on the virtual disks. Disk Group Operations Limit The maximum number of active, conc urrent disk gro[...]

46 Planning: MD3200 Series St orage Array T erms and Concepts • Segment size migration • Disk group expansion • Disk group defragmentation. The priority of each of these operat ions can be changed to address performance requirements of the environment in whi ch the operations are to be e xecut ed. NOTE: Setting a high priority level impact s [...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 47 the MD3200 array does not recognize the migrating me ta data and that data is lost. In this case, the MD3200 initializes the physical disks and mark them as unconfigured capacity . NOTE: Only disk groups and associated virtual disks with all mem ber phy sical disks present can be migrat[...]

48 Planning: MD3200 Series St orage Array T erms and Concepts • Migrating virtual disks to a storage array with no existing physical disks— T ur n off the destination storage array , when migrating disk groups or a complete set of physical disks from a storage arra y to another storage array that has no existing physical disks. A fter the desti[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 49 Host Server -to-V irtual Disk Mapping The host server attached to a storage array accesses various virtual disks on the storage array through its host ports. Specific virtual disk-to-L UN mappings to an individual host server can be defined. In addition, the host server can be part of a[...]

50 Planning: MD3200 Series St orage Array T erms and Concepts online and user -accessible. When the backup is completed, the snapshot virtual disk is no longer needed. Y o u can create up to four snapshots per virtual disk. Snapshots ar e used to r ecover pre vious versions of files that have changed since the snap shot was tak en. Snap sh ots are [...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 51 Vi rtual Disk Copy Virtual disk copy is a pr em ium feature you can use to : •B a c k u p d a t a • Copy data from disk groups that use sm aller -capacity physical disks to di sk groups using greater capacity physical disks • Restore snapshot virtual disk data to the source virtua[...]

52 Planning: MD3200 Series St orage Array T erms and Concepts En s ure t ha t yo u re co rd th e LUN us e d t o provide access to the source virtual disk. Y ou need this information when yo u define a host server -to-virtual disk mapping for the target (bac kup) virtual disk. Also , be sure to stop all I/O activity to the source virtual disk befo r[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 53 Preferred and A lternate Controllers and Paths A preferr ed controller is a R AID controll er module designated as the owne r of a virtual disk or disk group. The pr efer red controller is automatically selected by MDSM when a virtual disk is created. Y ou ca n change the preferr ed RAI[...]

54 Planning: MD3200 Series St orage Array T erms and Concepts Load Balancing A load balance policy is us ed to determine which path is used to process I/O . Multiple options for setting the load ba lance policies lets you optimize I/O performance when mixed host interfaces are configur ed. Y ou can choose one of these load balance policies to optim[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 55 Monitoring MD3200 Series Sy stem Performance Y ou can use the P erformance Monitor to select virtual disks and R AID controller modules to monitor or to ch ange the p olling inte rval. Keep these guidelines in mind when using the P erformance Monitor: • The P erformance Monitor does n[...]

56 Planning: MD3200 Series St orage Array T erms and Concepts 5 Click Start . V alues appear for the selected storag e arrays in the P erformance Monitor data table. The table is updated at the interval specified in the P olling Interval setting. 6 Click Update to force an immediate poll of the storage array . 7 Click Stop to stop monitoring the st[...]

Planning: MD3200 Series St orage Ar ray T erms and Concepts 57 F or more information, see the online help topics . Current KB/second Snapshot of throughput value per second (1KB = 1024 bytes). Maximum KB/second Maximum recorded th roughput value from last start time. Current IO/second Snapshot of IO’s per second (IOP = Input/output per second or [...]

58 Planning: MD3200 Series St orage Array T erms and Concepts book.book Page 58 Mond ay, June 21, 2010 1 1:00 AM[...]

Configuration: Overview 59 5 Configuration: Overview Dell™ P owerV ault™ Modular Disk Stor age Manager (MDSM) online help contains information on the how to use the MDSM application to perform the configuration and mana gement tasks described in this document. Y ou can access online help by selecting Help located at the top right corner of MDSM[...]

60 Configuration: Overview Enterprise Mana gement Window The EMW provides high-level manageme nt of storage arrays. When you start MDSM, the EMW opens. The EMW has thes e tabs: • Devices tab—P rovides information about the storage arrays. • Setup tab—P resents the initial setup ta sks that guide you through adding storage arrays and configu[...]

Configuration: Overview 61 Inheriting the Sy stem Settings Use the Inherit Syst em Settings option to import the operating system theme settings into the MDSM. Im porting system theme settings affects such features as font type, font size, color , and contrast in the MDSM. 1 Open the Inherit System Settings window in one of these ways: • Select T[...]

62 Configuration: Overview • Physical tab—Y ou can view the organization of the storage array by R AID controller modules, physica l disks, and other hardwar e components. • Mappings tab—Y ou can define the hosts, host group s, and host port s. Y ou can change the mappings to grant virt ual disk access to host gr oups and hosts and create s[...]

Configuration: About Y our Storage Array 63 6 Configuration: About Y our Storage Array Out-of-Band and In-Band Management Y ou can manage a storage array in two ways: • Out-of -band management • In-band management Out-of-Band Management Using the out-of-band management method, data is separate from commands and events. Data travels thro ugh the[...]

64 Configuration: About Y our Storage Array In-Band Management Using in-band management, commands, events, and data travel through the host-to-controller interface. Unlike out-of -band management, commands and events are mixed with data. NOTE: For detailed info rmation on settin g up in-band and out-of-band management see the Deployment Guide . Whe[...]

Configuration: About Y our Storage Array 65 NOTE: For Linux, set the default gateway so that broadcast packets are sent to 255.255.255.0. For R ed Hat® Enterprise Li nux®, if no g ateway exists on the network, set the default gateway to the IP address of the NIC. NOTE: MDSM uses TCP/UDP por t 2463 for communication to the MD Storage Array . Autom[...]

66 Configuration: About Y our Storage Array NOTE: The host agent must be restarted befo re in-band ma nagement communication can be established. See "S tarting or Restarting the Host Context Agent Software" on page 239. 3 Click Add . 4 Use one of these methods to name a storage array: • In the EMW , select the Setup tab, and select Name[...]

Configuration: About Y our Storage Array 67 • Save Configuration—Save the configuration pa rameters in a file that you can use to restore the configuration, or reuse the configuration on another storage array . F or more information, see the P owerV ault Modular Disk Storage Manager online help topics. After you complete the basic steps for con[...]

68 Configuration: About Y our Storage Array A confirmation message is displayed. 4 Click OK . Naming or Renaming Storag e Array s Each storage array should be assi gned a unique up to 30-character alphanumeric name. A name can consist of letters, numbers, and the special characters underscore (_), dash (–), and pound sign (#). No other special ch[...]

Configuration: About Y our Storage Array 69 Setting a Password Y ou can configure each storage array with a passwor d to protect it from unauthorized access. MDSM prompts for the passwor d when an attempt is made to change the storage array configur ation, such as, when a virtual disk is created or deleted. V iew operations do not change the storag[...]

70 Configuration: About Y our Storage Array Password Guidelines F ollow these guidelines when you create a password: • Use secure passwords for your storage array . A passw ord should be easy for you to remember but difficult for ot hers to determine. Consider using numbers or special characters in the place of letters, such as a 1 in the place o[...]

Configuration: About Y our Storage Array 71 Adding/Editing a Comment to an Existin g Storage Array A descriptive comment, with an applic able storage array name, is a helpful identification tool. Y ou can add or edit a comment for a storage array in the EMW only . T o add or edit a comment: 1 In the EMW , select the Devices tab and select the relev[...]

72 Configuration: About Y our Storage Array Enabling Premium Features Y ou can enable premium features on the storage array . T o enable the premium features, you must obtain a feature k ey file specific to the pr emium feature that you want to enable from your storage supplier . T o enable premium features: 1 F rom the toolbar in AMW , select Stor[...]

Configuration: About Y our Storage Array 73 Changing the Cache Settings on the Storage Array T o change the storage array cache settings: 1 In the AMW , select Storage Array  Change  Cache Settings . The Change Cache Settings window is displayed. 2 Select or enter the percentage of unwr itten data in the cache to trigger a cache flush in Star[...]

74 Configuration: About Y our Storage Array T o change the enclo sure or der in the physical pane: 1 In the AMW , select Storage Array  Change  Enclosure Order . 2 F rom the enclosur es list, select the enclosure you want to move and click either Up or Down to move the enclosur e to the new position. 3 Click OK . 4 If you have set a p assword[...]

Configuration: About Y our Storage Array 75 Configuring E-mail Alerts F or more information on config uring al ert notifications, see "Configuring Alert Notifications" on page 74. T o configure e-mail alerts: 1 Open the Configure Alerts dialog by performing one of these actions: • In the T ree view or the T able view on the Devices tab [...]

76 Configuration: About Y our Storage Array NOTE: Including the contact information in the e-mail alert is optional. 7 Select the e-mail tab to configure the e-mail destinations. • Adding an e-mail address—In e-mail address , type the e-mail address, and cli ck Add . • Replacing an e-mail address—In the Configured E-mail addresses area, sel[...]

Configuration: About Y our Storage Array 77 • Y ou must provide a SMTP mail server na me and an e-mail s ender addr ess for the e-mail addresses to work. • The e-mail addresses that you had p reviously configur ed appear in the Configured e-mail addr esses area. • Y ou must use fully qualified e- mail addresses, for e xample, name@mycompany .[...]

78 Configuration: About Y our Storage Array NOTE: The community name is an American Standard Code for Information Interchange (ASCII) string that identifi es a known set of network management stations and is set by the network administrator . The default community name is the string “public”.The tr ap d estination is the IP address or the host [...]

Configuration: About Y our Storage Array 79 The learn cycle completes the following operations: • Discharges the battery to a predetermined thr eshold • Charges the battery back to full capacity A learn cycle starts automatically wh en you install a new battery module. Learn cycles for batteries in both RAID controller modules in a duple x syst[...]

80 Configuration: About Y our Storage Array written by the RAID controller modu les to the Event Log match the event timestamps written to host log files. The RAID controller modules remain available during synchronization. T o synchronize the RAID controller module clocks with the storage management station: 1 In the AMW , select Storage Array [...]

Configuration: Event Monitor 81 7 Configuration: Event Monitor An event monitor is provided with De ll™ P owerV ault™ Modular Disk Storage Manager (MDSM). The event monitor runs continuous ly in the background and monitors activity on the managed storage arrays. If the event monitor detects any crit ical problems, it can notify a host or r emot[...]

82 Configuration: Event Monitor Enabling or Disabli ng the Event Monitor Y ou can enable or disable the event monitor at a ny time. Disable the event monitor if you do not want the system to send alert notifications. If you are running the event monitor on multiple systems, disabling the event monitor on all but one system pr events the s ending of[...]

Configuration: About Y our Host 83 8 Configuration: About Y our Host Configuring Host Access Modular Disk Storage Manager (MDSM) software is comprised of mu ltiple modules. One of these modules is the Host Conte xt Agent. The host conte xt agent is installed as part of the MDSM installation and runs continuously in the background. If the host conte[...]

84 Configuration: About Y our Host • Change the host p ort identifier alias or user label. • Move or associate a host port identifier to a differ ent host. • Replace a host port id entifier with a new hos t port identifier . • Manually activate an inactive host port so that the p ort can gain access to host specific or host group specific L[...]

Configuration: About Y our Host 85 • Select the Mappings tab. Right-click the root node (storage array name), Default Group node, or Host Group node in the To p o l o g y pane to which you want to ad d the host, and se lect Define  Host from the pop-up menu. The Specify Host Name window is displa yed. 3 In Host name , enter an up to 30 charact[...]

86 Configuration: About Y our Host The Pr e v i e w window is displa yed. 11 Click Fi n i s h . Removing Host Access T o remove host access: 1 In the AMW , select the Mappings tab, select the host node in the To p o l o g y pane. 2 P erform one of these actions: • Select Mappings  Rem ov e . • Right-click the host node, and select Rem ov e f[...]

Configuration: About Y our Host 87 • Right-click the storage array or the Default Group, and select Define  Host Group from the pop-up menu. 4 T ype the name of the new host group in Enter new host group name . 5 Select the appropriate hosts in the Select hosts to add are a. 6 Click Add . NOTE: T o remove hosts, select the hosts in the Hosts i[...]

88 Configuration: About Y our Host 4 Click Ye s . The host is moved to the selected ho st group with the following mappings: • The host retains the specific virt ual disk mappings assigned to it. • The host inherits the virtual disk mappings assigned to the host group to which it is moved. • The host loses the virtual disk mappings assigned t[...]

Configuration: About Y our Host 89 • Changing a host type MDSM automatically detect s these changes for any host running the host agent software. Starting or St opping the Host Conte xt Agent The host context agent discovers the ho st topology . The host context agent starts and stops with the host. The topo logy discover ed by the host conte xt [...]

90 Configuration: About Y our Host 3 If the host context agent is running, click Action  Stop , then wait approximatel y 5 seconds. 4 Click Action  Start . I/O Data Path Protection Y ou can have multiple host-to-array co nnections for a host. Ensure that you select all the connections to the array when configuring ho st access to the storage [...]

Configuration: About Y our Host 91 Managing Host Port Identifiers Y ou can manage the host port identifiers that are added to the st orage array . Y ou can: • Add—Add or as sociate a new host port identifier to a particular h ost. • Edit—Change the host port identifier alias or user label. Y ou can move (associate) the host port ide ntifier[...]

92 Configuration: About Y our Host 5 Select the method to add a host port identifier to the host. Y ou can select: • Add by selecting a know unasso ciated host port identifier —Select the appropriate host port identifier from the existing list of Known unassociated host port identifiers. • Add by creating a new host port identifier —In New [...]

Configuration: Disk Groups and Virtual Disks 93 9 Configuration: Disk Groups and V irtual Disks Creating Disk Groups and V irtual Disks Disk groups ar e cr eated in the unconfig ur ed capacity of a storage array , and virtual disks ar e created in the fr ee ca pacity of a disk group. The maximum number of physical disks supported in a disk group is[...]

94 Configuration: Disk Groups and V irtual Disks A disk group should be organized according to its related tasks and subtasks. F or example, if you cr eate a disk gr oup for the Accounting Department, you can create virtual disks that matc h the differ ent types of accounting performed in the department: Accounts Receivable (AR), Accounts P ayable [...]

Configuration: Disk Gr oups and V irtual Disks 95 3 T ype up to 30-character name of th e disk group in Disk group name . 4 Select the appropriate Physical Disk selection choices , you can select: • Automati c , see step 6 • Manual , see step 9 5 Click Next . 6 F or Automatic configuration, The RA I D L e v e l a n d C a p a c i t y window is d[...]

96 Configuration: Disk Groups and V irtual Disks Locating a Disk Group Y ou can physically locate and identify al l of the physical disks that comprise a selected dis k group. An LED bl inks on each physical disk in the disk group. T o locate a disk group: 1 In the AMW , select the Log i ca l tab. 2 Select the appropriate disk grou p and from the t[...]

Configuration: Disk Gr oups and V irtual Disks 97 T o create virtual disks: 1 Choose one of these methods to start the Create Virtual Disk W izard: • T o cr eate a virtual disk from unconfigured capacity in the storage array—On the Log i c al tab, select an Unconfigured Capacity node, and select Vi r t u a l D i s k  Create . Alternatively ,[...]

98 Configuration: Disk Groups and V irtual Disks 5 In Advanced virtual disk param eters , you can select: • Use recommended settings . • Customize settings . 6 Click Next . 7 In the Customize Advanced V irtual Disk P arameters window , sel ect the appropriate Virtual Disk I/O characteristics type. Y ou can select: • F ile system (typical) •[...]

Configuration: Disk Gr oups and V irtual Disks 99 T o change the virtual disk modification priority : 1 In the AMW , select the Log ic al tab. 2 Select a virtual disk. 3 In the toolbar , sele ct Vi r t u a l D i s k  Change  Modification P riority . The Change Modificati on P riorit y window is di splayed. 4 Select one or more virtual disks. [...]

100 Configuration: Disk Groups and V irtual Disks To c h a n g e t h e v i r t u a l disk cache settings: 1 In the AMW , select the Log i ca l tab and select a virtual disk 2 In the toolbar , select Vi r t u a l D i s k  Change  Cache Settings . The Change Cache Settings window is displa yed. 3 Select one or more virtual disks. T o select non[...]

Configuration: Disk Gr oups and V irtual Disks 101 5 Click OK . A message prompts you to confirm the change in the virtual disk modification priority . 6 Click Ye s . 7 Click OK . Changing the Se gment Size of a V irtual Disk Y ou can change the segment size on a selected virtual disk. During this operation, I/O performance is affect ed, but your d[...]

102 Configuration: Disk Groups and V irtual Disks T o change the segment size of a virtual disk: 1 In the AMW , select the Log i ca l tab and select a virtual disk. 2 Select Vi r t u a l D i s k  Change  Segment Size . 3 Select the requir ed segment size. A message prompts you to confirm the selected segment size. 4 Click Ye s . The segment s[...]

Configuration: Disk Gr oups and V irtual Disks 103 T o change the I/O type: 1 Select from these virtual disk I/O ch aracteristic types, based on your application needs: • F ile system (typical) • Database •M u l t i m e d i a •C u s t o m The corresponding dynamic cache r ead pr efetch setting a nd segment size values that are typically wel[...]

104 Configuration: Disk Groups and V irtual Disks Phy sical Disk Security with Self Encrypting Disk Self encrypting disk (SED ) technology pr events unauthorized access to the data on a phy sical disk that is physica lly r emoved from the storage array . The storage array has a security key . Self en crypting disks provide a ccess to data only thro[...]

Configuration: Disk Gr oups and V irtual Disks 105 The following table shows how to int erpre t the security status of a disk group The Physical Disk Security menu a ppears in the Storage Array menu. The Physical Disk Security menu has these options: •C r e a t e S e c u r i t y K e y • Change Secu rity K ey •S a v e S e c u r i t y K e y F i[...]

106 Configuration: Disk Groups and V irtual Disks The Cr eate a secur e disk group opti on appears in the Create Disk Group W izard - Disk Group Name and Physical Disk Se lection dial og. The Create a secure disk group option is active only when these conditions ar e met: • A security key is installed in the storage array . • At least one secur[...]

Configuration: Disk Gr oups and V irtual Disks 107 T o create a security key : 1 In the AMW toolbar , select Storage Array  Physical Di sk Security  Create Security K ey . The Create Security K ey window is displayed. 2 Enter a string that becomes part of the secure key identifier , in Security key identifier . Y ou can enter up to 189 [...]

108 Configuration: Disk Groups and V irtual Disks After you have created a security k ey , yo u can cr eate secur e disk groups from security capable physical disks. Crea ting a secur e disk group makes the physical disks in the disk group secu rity-enabled. Security-enabled physical disks enter Security Locked status when ever power is re-applied.[...]

Configuration: Disk Gr oups and V irtual Disks 109 3 In Secure key identifier , enter a string that becomes part of the secur e key identifier . Y ou may leave the text box blank, or enter u p to 189 alphanumeric characters without white space, punc tuation, or symbols. Additional characters are generated automatically . 4 Edit the default path by [...]

110 Configuration: Disk Groups and V irtual Disks T o save the security key for the storage array , 1 In the AMW toolbar , select Storage Array  Physical Disk Secur ity  Save Security K ey Fi l e . The Save Security K ey F ile - Enter P ass Phrase window is displayed. 2 Edit the default path by adding a file name to the end of the path or [...]

Configuration: Disk Gr oups and V irtual Disks 111 Y ou must supply the security key from a se curity k ey file that was saved on the original storage array . Y ou must prov ide the pass phrase th at wa s used to encrypt the security k ey file to e xtra ct the security key from this file. F or more information, see the P owerV ault Modular Disk Sto[...]

112 Configuration: Disk Groups and V irtual Disks • If there ar e secure disk groups and security capable disk groups in the storage array , the hot spare physical disk must match the security capability of the disk group. • Hot spare physical disks must have ca pacities equal to or larger than the used capacity on the physical disks that they [...]

Configuration: Disk Gr oups and V irtual Disks 113 5 T o assign hot spa res, in the Hot Spare Coverage window , select a disk group in the Hot spare coverage area. 6 Review the information about the hot spare coverage in the Details area. 7 Click Assign . The Assign Hot Spare window is disp layed. 8 Select the relevant Physical disks in the Unassig[...]

114 Configuration: Disk Groups and V irtual Disks Hot Spare Operation When a physical disk fails, the virtua l disk a utomaticall y rebuilds using an available hot spare. When a replacement physical disk is installed, data from the hot spare is copied back to the repl ace ment physical dis k. This function is called copy back. By default, the RA ID[...]

Configuration: Disk Gr oups and V irtual Disks 115 hot spare physical disk. T o make sure that enclosur e loss prote ction is not affected, you must replace a failed physica l disk to initiate the co pyback process. The virtual disk remains online and accessible while you are r eplacing the failed physical disk, because the hot spare physical disk [...]

116 Configuration: Disk Groups and V irtual Disks Host-to-V irtual Disk Mapping After you create virtual disks, you must map them to the host(s) connected to the array . Guidelines to configur e ho st-to-virtual disk mapping: • Each virtual disk in the storage array can be mapped to only one host or host group. • Host-to-virtual disk mappings a[...]

Configuration: Disk Gr oups and V irtual Disks 117 • Each host has its own LUN addr ess space. MDSM permits the same L UN to be used by different hosts or host groups to access virtual disks in a storage array . • Not every operating system has the same number of LUNs available. • Y ou can define th e mappings on the Mappings tab in the Array[...]

118 Configuration: Disk Groups and V irtual Disks 4 In Host group or host , select the appropriate host group or host. All defined hosts , host groups, a nd the default group a ppear in the lis t. NOTE: When configuring an iSCSI storage array , including the MD3200 or MD3220, if a host or a host group is se lected that does not have a SAS host bus [...]

Configuration: Disk Gr oups and V irtual Disks 119 2 In the Defined Mappings pane, perform one of these actions: • Select a single virtual disk, and select Mappings  Change  Mapping . • Right-click the virtual disk, an d select Change Mapping from the pop-up menu. 3 In Host group or host, select the appropriate host group or host. By defa[...]

120 Configuration: Disk Groups and V irtual Disks snapshot virtual disk inherits the RA ID controller modu le owner of its associated source vi rtual disk. Chan ging the R AID controller module ownership of a virtual disk changes th e preferred R AID controller module ownership of the virtual disk. During a virtual disk copy , the same RAID control[...]

Configuration: Disk Gr oups and V irtual Disks 121 Changing the RAID Controller Mod ule Ownership of a Disk Group Y ou can change the R AID controller module ownership of a a disk group. Y ou can change the R AID controller mo dule ownership of a standard virtual disk or a snapshot r epository virtual disk. Y ou cannot dir ectly change the R AID co[...]

122 Configuration: Disk Groups and V irtual Disks Changing the RAID Level of a Disk Group Changing the RAID level of a disk group changes the RAID levels of every virtual disk that comprises the disk group. P erformance might be slightly affected during the operation. Guidelines to change the RAID l evel of a disk group: • Y ou cannot cancel this[...]

Configuration: Disk Gr oups and V irtual Disks 123 • Y ou cannot change a host adapter port to a restricted host type if there are already mappings in the storage partition that would ex ceed the limit imposed by the restricted host type. • Consider the case of the Default Group that has access to L UNs up to 256 (0 to 2 55 ) a nd a re s tr ic [...]

124 Configuration: Disk Groups and V irtual Disks Changing the RAI D Controller Modul e Ownership of a V irtual Disk or a Disk Group Y ou can change the R AID controller modu le ownership of a virtual disk or a disk gr oup. Y ou can change the R AID controller modu le ownership of a standar d virtual disk or a snapshot repository virtual disk. Y ou[...]

Configuration: Disk Gr oups and V irtual Disks 125 d Select the RAID controller module. CAUTION: Possible loss of data access – If you do not use a multi-path driver , shut down any host applicati ons that are currently us ing the virtual disk. This action prevents application e rrors when the I/O path changes. e Click Ye s . The ownership of the[...]

126 Configuration: Disk Groups and V irtual Disks Keep thes e guidelines in mind when you change the R AID level of a disk group: • Y ou cannot cancel this operation afte r it begins. • The disk group must be in Optimal status befor e you can perform this operation. • Y our data remains available during this operation. • If you do not have [...]

Configuration: Disk Gr oups and V irtual Disks 127 More than one storage partition is requir ed if: • Specific hosts must acc ess specific virtua l disks in the s torage array . • Hosts with different operating system s ar e attached to the same storage array . In this case, a s torage partition is created for each host type. Y ou can use the S[...]

128 Configuration: Disk Groups and V irtual Disks Disk Group and V irtual Disk Expansion Adding free capacity to a disk group is achieved by adding unconfigured capacity o n the array to th e disk group. Data is accessible on disk groups, virtual disks, and physical disks througho ut the entire modification operation. The additional free capacity c[...]

Configuration: Disk Gr oups and V irtual Disks 129 Vi rtual Disk Expansio n Virtual disk e xpansio n is a dynamic modification operatio n that increases the capacity of standard virtual disks. NOTE: Snapshot repository virtual disks can be expanded from the CLI or from MDSM. All other virtual disk ty pes are expandable only from the CLI. If you r e[...]

130 Configuration: Disk Groups and V irtual Disks Disk Group Migration Disk group migration allows to you expo rt a disk group so that you can import the disk group to a differ ent storag e arra y . Y ou can also export a disk group so that you can store the data offline. NOTE: During the export process (before the disk group is im ported) you lose[...]

Configuration: Disk Gr oups and V irtual Disks 131 4 Locate the disk group, and label the physical disks. 5 Place the disk group offline. 6 Obtain blank phys ical disk modules or n ew physical disks. On the tar get s torage arr ay : 1 V erify that the target storage array has availabl e physical disk slots. 2 V erify that the target storage array s[...]

132 Configuration: Disk Groups and V irtual Disks The following setti ngs are r emoved/cleared during the procedure: • P ersistent r eservations • Host-to-virtual disk mappings • Virtual disk copy pairs • Snapshot virtual d isks and snapsh ot repository virtual disks • Remote mirror pairs • Mirror repositories Non-Importable Components [...]

Configuration: Disk Gr oups and V irtual Disks 133 • Redundancy mismatches error—The fi rst 10 redundancy mismatches that are found on the virtual disk ar e reported to the event log. • Unfixable er ror—Data could not be read and par ity or redundancy information could not be used to regenerate the data . F or example, redundancy informatio[...]

134 Configuration: Disk Groups and V irtual Disks Suspending the Media Scan Y ou cannot perform a media scan whil e performing anot her long-running operation on the dis k drive such as r econstruction, copy-back, reconfiguration, virtual disk initia lization, or immedi ate availability formatting. If you want to perform another long-r unning opera[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 135 10 Configuration: Premium Feature— Snapshot V irtual Disks NOTE: If you ordered this featur e, you recei ved a Premium Feature Activation card shipped in the same box as your Dell PowerVault MD storage array . Follow the directions on the card to obtain a key file and to enable the fea[...]

136 Configuration: Premium F eature—Snapshot V irtual Disks repository uses less disk space than a full physical copy , because the only data blocks that ar e stor ed in the snapshot r epository virtua l disk are those that have changed since th e time of the snapshot. When you create a snapshot virtual di sk, you specify its location, capacity ,[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 137 About the Simple Path Using the simple path, you can specify: • Snapshot Virtual Disk Name—A us er -specified name that helps you associate the sn apshot virtual disk to its corr esponding snapshot reposi tory virtual disk and source virtual disk. • Snapshot Repository Virtual Disk[...]

138 Configuration: Premium F eature—Snapshot V irtual Disks NOTE: For details on mapping th e snapshot virtual disk to the secondary node, refer to the Dell™ PowerV ault™ MD3200 and MD3220 Storage Array s With Microsoft® Windows Server® Failover Clusters on support.dell.com/manuals . NOTE: Y ou can create concurrent snapshots of a source vi[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 139 The Create Snapshot V irtual Disk Wizard - Introduction dialog appears. 4 Select Simple (Rec ommended) , and click Next . The Specify Names window is displa yed. 5 Enter the Snapshot virtual disk name and the Snapshot repository virtual disk name and cli ck Next. The Specify Snapshot Rep[...]

140 Configuration: Premium F eature—Snapshot V irtual Disks Creating a Snapshot Vi rtual Disk Using the Advanced Path About the Ad vanced Path Use the advanced path to choose whet her to place the snapshot r epository virtual disk on free capacity or unc onfigur ed capacity and to change the snapshot r epository vir tua l disk parameters. Y o u c[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 141 • P ercent F u ll—When the snaps hot re pository virtual d isk re aches the user - specified repository full percentage level, the event is logged in the Major Event Log (MEL). The default snapshot repository full percentage level is 50% of the source virtual d isk. • Snapshot Repo[...]

142 Configuration: Premium F eature—Snapshot V irtual Disks Before c reating a Snapshot V irtual Disk: • The following types of virtual disks are not valid source virtual disks: snapshot repository virtual disks, snapshot virtual disks, target virtual disks that are participating in a virtual disk copy . NOTE: Virtual Disk Co py is an Advanced [...]

Configuration: Premium Featur e—Snapshot V irtual Disks 143 4 F ollow any additional instr uctions for your operating system. F ailure to follow these additional instructions can create unusable snapshot virtual disks. NOTE: If your operating sy stem requires addi tional instructions, you can find those instructions in your operating sy stem docu[...]

144 Configuration: Premium F eature—Snapshot V irtual Disks 6 In the Capacity allocation area, select: • F ree capacity on same disk group as base (recommended) • F ree capacity on different dis k group • Unconfigured capacity (create new disk group) 7 Enter the snapshot repository virtual di sks capacity as a percentage of the source virtu[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 145 Specifying Snapshot Vi rtual Disk Names Choose a name that helps you associ ate the snapshot virtual disk and snapshot re pository virtual disk with its c orres pondin g source virtual disk. The following information is useful when naming virtual disks: By default, the snapshot name is s[...]

146 Configuration: Premium F eature—Snapshot V irtual Disks characters, the default names for the sn apshot and its associated snapshot repository virtual disk use the source virtual disk name truncated enough to add the sequence string. F or exam ple, for Host Softwar e Engineering Group GR-1, the default snapshot name is H o st S o ft w a re E [...]

Configuration: Premium Featur e—Snapshot V irtual Disks 147 T o expand the snapshot r epository virtual disk fr om MDSM: 1 In the AMW , select the Log ic al tab. 2 Select the snapshot repository virtual disk for which you want to increase the capacity . 3 Select Vi r t u a l D i s k  Increase Capacity . NOTE: If no free capacity or unconfigure[...]

148 Configuration: Premium F eature—Snapshot V irtual Disks 7 If unassigned physical disks are not available, do you have empty slots in the expansion enclosur es? • Y es, there are empty slots—Insert new physical disks by using the information in the initial setup guid e for your expansion enclosure. Go to step 9. • No , ther e are no empt[...]

Configuration: Premium Featur e—Snapshot V irtual Disks 149 A new F r ee Capacity node is cr eated an d shown in the Lo gical tab if these conditions exist: • A F r ee Capacity node did not exist prior to the addition of capacity . • Not all of the capacity that is added is used to increase the capacity of the snapshot repository virtual disk[...]

150 Configuration: Premium F eature—Snapshot V irtual Disks Disabling a Snapshot V irtual Disk Disable a snapshot virtual disk if on e of the following conditions exists: • Y ou do not need the snapshot now . • Y ou intend to re-create the snapshot at a later time and want to retain the associated snapshot repository virtual disk so that you [...]

Configuration: Premium Featur e—Snapshot V irtual Disks 151 Preparing Host Servers to Re-create a Snap shot Vi rtual Disk NOTE: Before you create a new snapshot of a source virtual disk, stop any data access (I/O) activity or suspend data transfer to the source virtual disk and snapshot virtual disk to ensure that y ou capture an accurate snapsho[...]

152 Configuration: Premium F eature—Snapshot V irtual Disks Re-creating a Snapshot V irtual Disk After first pr eparing the host server(s), r e-cre ate a snapshot virtual disk. F or more information, see "P reparing Host Servers to Create the Snapshot Using the Simple P ath" on page 137 or "Pr e paring Host Servers to Create the Sn[...]

Configuration: Premium Feature—V irtual Disk Copy 153 11 Configuration: Premium Feature— V irtual Disk Copy NOTE: A virtual disk copy overwrit es data on the target virtual disk. Before starting a virtual disk copy , ensure that you no longer need the data or back up the data on the target virtual disk. NOTE: If you ordered this featur e, you r[...]

154 Configuration: Premium F eature—V irtual Disk Copy Reasons to use virtual disk copy include: • Copying data for improved access—As your storage requirements for a virtual disk change, you can use a virtual disk copy to copy data to a virtual disk in a disk group that uses drives with larger capacity within the same storage array . Copying[...]

Configuration: Premium Feature—V irtual Disk Copy 155 V irtual Disk Read/Write Permissions After the virtual disk copy is complete , the tar get virtual disk automatically be co m es re ad - on l y t o th e h o st s . T h e t arg e t v ir t u al di s k re j ec ts re ad a nd wr i te requests whil e the virtual disk copy op eration has a status of [...]

156 Configuration: Premium F eature—V irtual Disk Copy • A virtual disk can be selected as a target virtual disk for only one virtual disk copy at a time. • A virtual disk copy for any virtual disk cannot be mounted on the same host as the source virtua l disk. • W indows does not allow a drive letter to be assigned to a virtual disk copy .[...]

Configuration: Premium Feature—V irtual Disk Copy 157 The Virtual Disk Copy pr emium feature includes these item s: •T h e Create Copy Wizard , which assist s in creating a virtual disk copy •T h e Copy Manager , which monitors virtual disk copies after they have been created Before you Begin A virtual disk copy fails all snapshot virtual dis[...]

158 Configuration: Premium F eature—V irtual Disk Copy Operation in Progr ess icons appear on the source virtual disk and the target virtual disk while the virtual disk copy has a status of In P rogr ess or P ending. Failed Virtual Disk Copy A virtual disk copy can fail due to these condit ions: • A read error from the source virtual disk • A[...]

Configuration: Premium Feature—V irtual Disk Copy 159 Copy Manager After you create a virtual disk copy by using the Create Copy W izard, you can monitor the virtual disk copy through the Copy Manager . F rom the Copy Manager , a virtual disk copy may be re -copied, stopped, or r emoved. Y o u can also modify the attributes, such as the co py pri[...]

160 Configuration: Premium F eature—V irtual Disk Copy 5 In the Select source virtual disk are, select the appropriate virtual disk and click Ne xt. The Select T arget V irtual Disk and Copy P riority window is displayed. 6 In the Select target virtual disk area, select the appropriate virtual disk 7 In the Select copy priority area , select the [...]

Configuration: Premium Feature—V irtual Disk Copy 161 Setting Copy Priority Y ou can use the Copy Manager to select the rate at which a virtual disk copy completes for a selected copy pair . Y ou ca n change the copy priority for a copy pair at any of these times: • Before the virtual disk copy begins • While the virtual d isk copy has a stat[...]

162 Configuration: Premium F eature—V irtual Disk Copy T o stop a virtual disk copy , complete the following st eps: 1 In the AMW , select Vi r t u a l D i s k  Copy  Copy Manager . The Copy Manager window is displ ayed. 2 Select the copy pair in the table. 3 Select Copy  Stop . 4 Click Ye s . Recopying a Vi rtual Disk Y ou can recopy a [...]

Configuration: Premium Feature—V irtual Disk Copy 163 3 Click the Summary tab, then click Disk Groups & V irtual Disks to ensure that the virtual disk is in Optimal or Disabled status. 4 Remove the drive letter(s) of the so urce and (if mounted) virtual disk in W indows or unmount the virtual drive(s) in Linu x to help guarantee a stable copy[...]

164 Configuration: Premium F eature—V irtual Disk Copy 4 Select the copy pair in the table. 5 Select Copy  Re- C o p y . The Re- Co p y window is displayed. 6 Set the copy priority . NOTE: There are five copy priority rates avai lab le: lowest, low , medium, high, and highest. If the copy priority is set at the lowest r ate, I/O activity is pr[...]

Configuration: Premium Feature—U pgrading to High-Performance-T i er 165 12 Configuration: Premium Feature— Upgrading to High-Performance- Ti e r The High P erformance Tier premium featur e on a MD3200 Series array increases the performance of the syst em beyond that o f a MD3200 Series array operating at the standard performance level. If this[...]

166 Configuration: Premium Feature—Upgrading to High-Performance-T ier book.book Page 166 Mon day, June 21, 2010 11:0 0 AM[...]

Configuration: Device M apper Multipath for Linux 167 13 Configuration: Device Mapper Multipath for Linux Overview The MD3200 Series storage array uses a Linux operatin g system software framework, k nown as Device Mappe r (DM), to en able multipath capa bilities on Linux Host Servers. The DM multip ath functionality is provided by a combination of[...]

168 Configuration: Device Mapper Multipath for Linux Using DM Multipathing Devices NOTE: Using or modifying any nodes other than the multipathi ng device nodes can result in array or file sy stem problems, including loss of communication with the array and corruption of the file sy ste m. Avoid accessing any device other than the multipathing devic[...]

Configuration: Device M apper Multipath for Linux 169 Device Mapper Configur ation Steps T o complete the DM multipathing configuration and make the storage available to the Linux host server: 1 Scan for virtual disks. See "Scan for Newl y Added Virtual Disks" on page 169. 2 Display the multipath device topology . See "Display the Mu[...]

170 Configuration: Device Mapper Multipath for Linux # multipath –ll The output s hould be similar to this example, which shows the output for one mapped virtual disk. mpath1 (3600a0b80005ab177000017544a8d6b92) dm-0 DELL, MD32xx [size=5.0G][features=3 queue_if_no_path pg_init_retries 50][hwhandler=1 rdac][rw] _ round-robin 0 [prio=6][active] _ [...]

Configuration: Device M apper Multipath for Linux 171 DELL is the vendor of the device MD3200 is the model of the device Sdx is the physical path to the ow ning controller for the device Sdcl is the physical path to the no n-owning controller for the device Create a New fdisk Partition on a Mu ltipath Device Node The fdisk command allows you to cre[...]

172 Configuration: Device Mapper Multipath for Linux On SLES 11.x ho sts, a parti tion node has the format /dev/mapper/mpath<x>- part<y>, wher e <x> is letter(s) assig ned to the multipathing device and <y > is the partition number . On SLES 10.3 hosts, a part ition node has the format /dev/mapper/m path<x>_part<y&g[...]

Configuration: Device M apper Multipath for Linux 173 CAUTION: Certain commands, such as lsscsi, display s one or more instances of Universal Xport devices. These device nodes must never be accessed, mounted, or used in any way . Doing so could cause loss of communication to the storage array and possibly cause serious damage to the storage array ,[...]

174 Configuration: Device Mapper Multipath for Linux Limitations and Known Issues • In certain error conditions with the no_path_retry or the queue_if_no_path feature is set, applications may hang. T o overcome these conditions the you must ente r the following command for each affected multipath device: dmsetup message [device] 0 "fail_if_n[...]

Configuration: Device M apper Multipath for Linux 175 T roubleshooting Question Answer How can I check if multipathd is running? Run the follow ing command /etc/init.d/multipathd status Why does the multipath –ll command output not show any devices? F irst verify if the devices ar e discovered or not. The command #cat /proc/scsi/scsi displays all[...]

176 Configuration: Device Mapper Multipath for Linux book.book Page 176 Mon day, June 21, 2010 11:0 0 AM[...]

Management: Firmware Downloads 177 14 Management: Firmware Downloads Downloading RAID Controller and NVSRAM Packages A version number exists for each firm wa re file. The ve rs ion number indicates whether the firmware is a major ver sio n or a minor version. Y ou can use the Enterprise Management W indow (EMW) to download and ac tivate both the ma[...]

178 Management: Firmware Downloads Downloading Both RAID Controller and NVSRAM Firmware NOTE: I/O to the array can continue while y ou are upgrading RAID controller and NVSRAM firmware. NOTE: Dell recommends that the firmware and NVSRAM be upgraded during a maintenance period when the array is not being used for I/O. NOTE: The RAID enclosure must c[...]

Management: Firmware Downloads 179 7 Click Tr a n s f e r . Keep these guidelines in mind: –I f t h e Tr a n s f e r button is inactive, ensure that you either sele ct an NVSR AM file or deselect the T ransfer NVSRAM file with R AID controller module firmware option. – I f the file selected is not valid or is not compatible with the current sto[...]

180 Management: Firmware Downloads 12 T o locate the dir ectory in which the file to download r esides, click Browse in the Select files area. The Select F ile dialog appears. 13 Select the file to download. 14 Click OK . 15 If you want to download the NVSR AM file with the R AID control ler module firmware, select Download NVSR AM file with firmwa[...]

Management: Firmware Downloads 181 2 Select Advanced  Maintenance  Download  RAI D C o n tr o l l e r Module NVSRAM or Select the Support tab, and click Download F irmware . In Select download task , select Download R AID controller module NVSR AM and click OK . An error message appears. Click OK to close it, and select a compatible file. [...]

182 Management: Firmware Downloads 8 In the Storage array pane, select the storage array for which you want to download the NVSR AM firmwar e. Y ou can select more than one storage array . NOTE: The Details pane shows the details of only one storage array at a time. If you select more than one storage array in the Storage array pane, th e details o[...]

Management: Firmware Downloads 183 Downloading Phy sical Disk Firmware CAUTION: When updatin g phy sical disk firmware , you should stop all I/O activity to the array to prevent data loss. The physical disk firmware controls vari ous features of the physical disk. The disk array controller (DA C) uses this type of firmware. Physical disk firmware s[...]

184 Management: Firmware Downloads T o download Physical Disk F irmware: 1 F rom the AMW , select Advanced  Maintenance  Download  Physical Disk. The Download Physical Disk - Introduction window ap pears. 2 Click Next . The Download Physical Disk F irmware - Add P ackages window is displayed. 3 In the Selected P ackages area , click Add . [...]

Management: Firmware Downloads 185 Downloading MD1200 Series Expansion Module EMM Firmware NOTE: Do not make any configuration changes to the storage array while you are downloading the expansion enclosure EM M firmware. Doing so could cause the firmware download to fail, damage the storage array , or cause loss of data accessibility . NOTE: Due to[...]

186 Management: Firmware Downloads 6 Click Ye s to continue with the firmware download, NOTE: If you click Stop while a firmware download is in progress, the download-in-progress finishes before t he operation stops. The status for the remaining expansion enclosures changes to Canceled . 7 Monitor the progress and completion status of the download [...]

Management: Firmware Downloads 187 Media Errors and Unreadable Sectors If the R AID controller detects a medi a error while accessing data from a physical disk that is a member of a disk group with a redundant R AID level (RAID 1, R AID 5 or RAID 10), the contro ller tries to recover the data from peer disks in the disk group and us es recovered da[...]

188 Management: Firmware Downloads book.book Page 188 Mon day, June 21, 2010 11:0 0 AM[...]

Management: Installing Array Components 189 15 Management: Installing Array Components Recommended T ools Y ou may need the f ollowing items to pe rform the procedur es in this section: • Key to the system k eylock •# 2 P h i l l i p s s c r e w d r i v e r •W rist grounding stra p book.book Page 189 Mon day, June 21, 2010 11:0 0 AM[...]

190 Management: Installing Array Components Front Bezel (Optional) Removing the Front Bezel 1 Using the system key , unlock the front bezel (if locked). 2 Lift up the release latch next to the k eylock. 3 Rotate the left end of the be zel away from the front panel. 4 Unhook the right end of the bezel and pull the bezel away from the system. Figure [...]

Management: Installing Array Components 191 Hard Drives SAFETY : Models AMT , E03J, and E04J Models AMT , E03J, and E04J ar e intended for installation only in restricted access locations as defined in cl 1.2.7.3 of IEC 60950-1:2005. Depending on your configur ation, your array either supports up to 24 2.5-inch SAS hard drives or up to 12 3.5-inch [...]

192 Management: Installing Array Components Figure 15-3. Removing and Installi ng a 2.5-Inch Hard-Drive Blank Installing a Drive Bl ank 1 If installed, remove the front bezel . See "Removing the F ront Bezel" on page 190. 2 Insert the drive blank into the drive bay until the blank is fully s eated. 3 Close the handle to lock the blank in [...]

Management: Installing Array Components 193 2 F rom the Modular Disk Storage Manager (MDSM) software, pr epare the drive for r emoval. W ait until the har d-drive indicators on the drive carrier signal that the drive can be removed safely . F or more information, see your controller documentation fo r information about hot-swap drive removal. If th[...]

194 Management: Installing Array Components Installing a Hard Drive CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team. Damage due to servicing that is no[...]

Management: Installing Array Components 195 Removing a Hard Drive From a Hard-Drive Carrier Remove the screws from the slide rails on the har d-drive carrier and separate the hard drive from the carrier . See F igur e 15-5 for P owerV ault MD3200 and F igur e 15-6 for P owerV ault MD3220. Figure 15-5. Removing and Installing a Hard Drive Into a 3.5[...]

196 Management: Installing Array Components Figure 15-6. Removing and Installing a Ha rd Drive Into a 2.5-Inch Drive Carrier 1 screws (4) 2 drive carrier 3 SAS screw hole 4 hard drive 2 1 3 4 book.book Page 196 Mon day, June 21, 2010 11:0 0 AM[...]

Management: Installing Array Components 197 Installing a Hard Drive Into a Drive Carrier 1 Insert the hard drive into the hard -d rive carrier with the connector end of the drive at the back. See F igur e 15-5. 2 Align the screw holes on the har d driv e with the back set of holes on the hard-drive carrier . When aligned correctly , the back of the[...]

198 Management: Installing Array Components 5 Connect all the power cables to the array . 6 T ur n on the array and the host server . Figure 15-7. Removing and Instal ling a RAID controller module Blank Installing a RAID Controller Module Blank T o install a R AID controller module blank, align the blank with the R AID controller module bay and ins[...]

Management: Installing Array Components 199 Removing a RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support team. Damage due to servicing [...]

200 Management: Installing Array Components Installing a RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and si mple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicin[...]

Management: Installing Array Components 201 Figure 15-9. Opening and Closing the RAID Controller Module Closing the RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troublesho oting and simple re pairs as authorized in your product documentation, or as directed by the on line [...]

202 Management: Installing Array Components RAID Controller Module Backup Battery Unit Removing the RAID Controller Module Backup Battery Uni t CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and si mple repairs as authorized in your product documentation, or as directed by the onli[...]

Management: Installing Array Components 203 Installing the RAID Controller Module Backup Batt ery Unit CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troublesho oting and simple re pairs as authorized in your product documentation, or as directed by the on line or telephone service and support tea[...]

204 Management: Installing Array Components Power Supply/Cooling Fan Module The array supports two hot-swappable power supply/cooling fan modules. While the array can operate temporaril y wit h one module, both the modules must be present for proper system cooling. CAUTION: A single power supply/cooling fan module can be removed from a powered-on a[...]

Management: Installing Array Components 205 Figure 15-11. Removing and Installing a Power Supply/Cooling Fan Module Installing a Power Supp ly/Cooling Fan Module CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troublesho oting and simple re pairs as authorized in your product documentation, or as d[...]

206 Management: Installing Array Components 2 Connect the power cable to the power supply/cooling fan module and plug the cable into a power outlet. 3 Secure the power cable using the V elcro strap. See F igur e 15-12. Figure 15-12. Securing the Power Cable CAUTION: When connecting the power cable, s ecur e the cable with the Velcro strap. NOTE: If[...]

Management: Installing Array Components 207 3 Remove the hard drives from: – slots 0 to 2 in P owerV ault MD3200 – slots 0 to 5 in P owerV ault MD3220 See "Removing a Hard Drive" on page 192. NOTE: Mark each hard drive with it’ s sl ot position as you remove it. 4 Slide the control panel out of the chassis after : – P ushi ng the [...]

208 Management: Installing Array Components Figure 15-14. Removing and Installing the Control Panel—PowerV ault MD3220 Installing the Contro l Panel 1 Align the control panel with the slot on the array . 2 Slide the control panel into the array until: – The r elease tab clicks into place in P owerV ault MD3200 . See F igure 15-13. – The r ele[...]

Management: Installing Array Components 209 Backplane WAR N IN G : Whenever you need to lift the array , get others to assist you. T o avoid injury , do not attempt to lift the array by yourself. CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in you[...]

210 Management: Installing Array Components Figure 15-15. Removing and Installing the RAID controller module /Power Supply Cage 1 RAID controller module /power supply cage 2 screws (6) 1 2 book.book Page 210 Mon day, June 21, 2010 11:0 0 AM[...]

Management: Installing Array Components 211 Figure 15-16. Removing and Installin g the Backplane—Pow erV ault MD3200 Figure 15-17. Removing and Installin g the Backplane—Pow erV ault MD3220 1 screws (5) 2 backplane 3 captive screw 1 screws (4) 2 backplane 3 captive screw 2 1 3 2 1 3 book.book Page 211 Mon day, June 21, 2010 11:0 0 AM[...]

212 Management: Installing Array Components Installing the Back plane 1 Align the holes on the backpla n e with the holes on the array . 2 Tighten the captive scr ew to secure the backplane to the chassis. See F igur e 15-16 for P owerV ault MD3200 or F igure 15-17 for P owerV ault MD3220. 3 Replace the screws that secur e the backplane to the chas[...]

Management: Firmware Inventory 213 16 Management: Firmware Inventory A storage array is made up of many components, which might include R AID controller modules, physical disks, and enclosur e management modules (EMMs). Each of these components co ntains firmware. Some versions of firmware ar e dependent on other v e rsions of firmware. T o capture[...]

214 Management: Firmware Inventory book.book Page 214 Mon day, June 21, 2010 11:0 0 AM[...]

Management: Sy stem Interfaces 215 17 Management: Sy stem Interfaces Microsoft Services Virtual Di sk Service The Microsoft ® Virtual Disk Service (VDS) is a component of the W indows ® operating system. The VD S component ut ilizes third-part vendor specif ic software modules, known as providers, to access and configure thir d-party storage reso[...]

216 Management: Sy stem Interfaces VSS attaches to the service and uses it to coor dinate the cr eation of snapshot virtual disks on the storag e array . VSS-initiated snap shot virtual disks can be triggered through backup to ols, known as requestors. The VSS P rovider Configuration T ool makes available the following config uration options: • S[...]

T roubleshooting: Y our Storage Array Software 217 18 T roubleshooting: Y our Storage Array Software Start-Up Routine Look and listen during the array’s start-up routine fo r the indications described in T able 18-1. F or a descri ption of the front- and back-panel indicators, see "Planning: About Y o ur Storage Array" on page 21. NOTE:[...]

218 T roubleshooting: Y our Storage Array Software T o launch the AMW , perform on e of these actions: •O n t h e Devices tab, in either the T ree view or the T able view , double-click a storage array . Alternatively , you can right-click a storage a rray and select Manage Storage Array from the pop-up menu. •O n t h e Setup tab, select Manage[...]

T roubleshooting: Y our Storage Array Software 219 In the T able view , every managed storag e array is listed once, regardless of the number of attachments it has in the T r ee view . After the storage array has been contacted by MDSM, an icon repres enting its har dware status appears. Hardwar e status can be Optimal, Needs Attent ion, or F ixing[...]

220 T roubleshooting: Y our Storage Array Software NOTE: MDSM may take a few minutes to update a status change to Unresponsive or from Unresponsive. A status change from or to Unresponsive depends on the network link to the storage array. All other status change updates faster . Storage Array Support Data Y ou can gather various type s of inventory[...]

T roubleshooting: Y our Storage Array Software 221 2 Enter a name for the support data file in Specify filename or click Browse to navigate to a previously saved file to overwrite an existing file. The suffix .zip is added automatically to the file if you do not specify a suffix for the file. 3 Enter the Execution summary . 4 Click Start . After al[...]

222 T roubleshooting: Y our Storage Array Software Collecting the Phy sical Disk Data Y ou can use the Collect Physical Disk Da ta option to collect log sense data from all the physical disks on your storage array . Log sense data consists of statistical information that is maintained by each of the physical disks in your stor age array . Y our T e[...]

T roubleshooting: Y our Storage Array Software 223 The event log window shows two types of event views: • Summary view—Shows an even t summary in a table form. • Detail view—Shows details about a selected event. T o view the event log: 1 In the AMW , select Advanced  T roubleshooting  V iew Event L og . The Event Log is displayed. By [...]

224 T roubleshooting: Y our Storage Array Software Y ou can detect a problem usin g the following indicators: • Non-Optimal status icons • Alert notification messages that are sent to the appropriate de stinations • Hardware indicator lights The status icons re turn to Optimal status as problems are r esolved. Storage Array Profile The storag[...]

T roubleshooting: Y our Storage Array Software 225 4 T o search the storage array profile, perform these steps: a Click . b T ype the term that you want to search for in the Fi n d text box. If the term is located on the current tab, the term is highlighted in the storage array profile information. NOTE: The search is limited to the current tab. If[...]

226 T roubleshooting: Y our Storage Array Software Vi ewing the Logical Associations Y ou can use the Associated Logical Elements option to view the logical associations among di fferent virtual disks in a storage array . T o view the associations for source vi rtual disks, snapshot virtual disks, and snapshot repository virtual disks: 1 In the AMW[...]

T roubleshooting: Y our Storage Array Software 227 Finding Nodes Y ou can use th e F ind option to search fo r a particular node on the L ogical tab, the Physical tab, or the Mappings tab of the Array Management Window . The search might be based on a particular no de name, the RAID level, virtual disk capacity , or specific free capacit y nodes. T[...]

228 T roubleshooting: Y our Storage Array Software 6 T o search for all nodes based on their virtual disk capacity , perform these steps: a Select F ind all virtual disks with capacity . b T ype the capacity in the GB box. c Specify that the capacity to be ma tched is less than, equal to, or greater than the capacity enter ed in the GB box. d Go to[...]

T roubleshooting: Y our Storage Array Software 229 1 On the Log ic al tab of the AMW , select one of these virtual disks, and go to the indicated step: • Snaps hot virtual disk—Go to step 2. • Snaps hot repository virtual disk—Go to step 3. • Source virtual disk—Go to step 4. • T arget virtual disk—Go to step 5. 2 Select Vi e w  [...]

230 T roubleshooting: Y our Storage Array Software T o recover from an unr esponsive storage array : 1 Check the T ree V iew in the EMW to see if all storage arrays are unre sponsive. 2 If any storage arrays are unr espon sive, check the storage management station network conne ction to make sure that it can reach the network. 3 Ensure that the R A[...]

T roubleshooting: Y our Storage Array Software 231 12 F o r an in-band managed storage array , make sure that the host is network accessible by using the ping command to verify that the host can be reached. T ype one of these commands, and press Enter . • ping <host-name> • ping <RAID controller module-IP -addr ess> 13 If the verifi[...]

232 T roubleshooting: Y our Storage Array Software 22 Determine if there is an e x cessive am ount of network traffic to one or more R AID controller modules. This problem is self -corr ecting beca use the EMW software periodically retries to establish communication wi th the RAID controller modules in the storage array . If the storage array was u[...]

T roubleshooting: Y our Storage Array Software 233 4 When you have loca ted the physical disks, click OK . The LEDs stop blink ing. If any other b link operations (Blink Disk Group, Blink Storage Ar ray , Blink Physical Disk P orts , or Blink Exp ansion Enclosure) ar e currently being invok ed from another storage management station, these LEDs als[...]

234 T roubleshooting: Y our Storage Array Software 5 In the rare case that the LEDs on the expansion enclosur e do not stop blinking, from the Array Managemen t W indow , select Storage Array  Blink  Stop All Indications . If the LEDs successfully stop blinki ng, a confirmation message appears. 6 Click OK . Capturing the State Information Use[...]

T roubleshooting: Y our Storage Array Software 235 NOTE: Refer to the PowerV ault Modular Disk Storage Manager online help topics for more information on troubl eshooting, and recovering from failures. SMrepassist Utility SMrepassist (replication assistance) is a host-based utility for W indows platforms. This utilit y is installed with MDS M. Use [...]

236 T roubleshooting: Y our Storage Array Software Unidentified Devices An unidentified node or device occu rs when MDSM cannot access a new storage array . Causes for this error include network connection problems, the storage array is turned off, or the storage array does not e xist. NOTE: Before beginning a ny recovery procedure, make sure that [...]

T roubleshooting: Y our Storage Array Software 237 b Make sur e that the network can access the host by using the ping command in the following syntax: ping <host-name-or-IP-address-of-the-host> . If the network can access the host, co ntinue to step c. If the network cannot access the host, skip to step d. c Remove the host with the unr espo[...]

238 T roubleshooting: Y our Storage Array Software c Examine the ethernet cables to make sure that you cannot see any damage and that they are tightly connected. d Make sur e that the applicable network configuration tasks have been done (for example, the IP addres ses have been assigned to each controller). 5 Make sur e that the controller firmwar[...]

T roubleshooting: Y our Storage Array Software 239 Starting or Restarting the Host Context Agent Software The host conte xt agent softwar e module is the softwar e component that r esides on the server or manageme nt station that co mmunica tes with the MD3200 series storage arrays. The SMag ent software automatically starts after you reboot the ho[...]

240 T roubleshooting: Y our Storage Array Software After the program completes the startup pr ocess, text similar to the following messages is displa yed: Modular Disk Storage Manager Agent, Version 90.02.A6.14 Built Wed Feb 03 06:17:50 CST 2010 Copyright (C) 2009-2010 Dell, Inc. All rights reserved. Checking device <n/a> (/dev/sg10): Activat[...]

T roubleshooting: Y our Array 241 19 T roubleshooting: Y our Array Safety First—For you and Y our Array CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support te[...]

242 T roubleshooting: Y our Array T roubleshooting Power Supply/Cooling Fan Module CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team. Damage due to servi[...]

T roubleshooting: Y our Array 243 T roubleshooting Array Cooling Problems CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support team. Damage due to servicing that[...]

244 T roubleshooting: Y our Array c Reseat the EMM module and wait for 30 seconds. See Removing an EMM in the MD1200 and MD1220 St orage Enclosur es Hardwar e Owner's Manual. d T ur n on the server . e Check the EMM status LED. f If the LED does not turn Gr een, r eplace the EMM. If the problem is not r esolved, see "Getting Help" on[...]

T roubleshooting: Y our Array 245 • If the array status LED is solid or blink ing amber: a In the AMW , select the Summary tab, and click on Storage Array needs attention . F ollow the listed procedures in the recovery guru(s) and wait for up to 5 minutes to ch eck if the LED has turned blue. See "Recovery Guru" on page 223. b If follow[...]

246 T roubleshooting: Y our Array T roubleshooting Hard Drives CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team. Damage due to servicing t hat is not au[...]

T roubleshooting: Y our Array 247 T roubleshooting Array and Expansion Enclosure Connections 1 V erify that the RAID controller module po rt link status LED and the R AID controller module status LE D are solid green for each port that is connected to a cable. If the LEDs are not solid green, see "Planning: R AID Controller Modu les" on p[...]

248 T roubleshooting: Y our Array T roubleshooting a W et Storage Array CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team. Damage due to servicing t hat [...]

T roubleshooting: Y our Array 249 T roubleshooting a Damaged Array CAUTION: Many repairs may only be done by a certified service technician. Y ou should only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support team. Damage due to servicing that is not[...]

250 T roubleshooting: Y our Array Invalid Storage Array The RAID controller module is supporte d only in a Dell-supported storage array . Upon installation in the storage arr ay , the controller performs a set of validation checks. The arra y status LED is lit with a steady amber color while the R AID controller module completes these initial tests[...]

T roubleshooting: Y our Array 251 • Backplane/power sup ply failure • T wo or mor e temperature sensors are unreadable • F ailur e to detect or unable to communicate with peer port NOTE: If both RAID controller modules fa il simultaneously , the enclosure cannot issue critical or noncritical even t alarms for any enclosure component. When the[...]

252 T roubleshooting: Y our Array book.book Page 252 Mon day, June 21, 2010 11:0 0 AM[...]

Getting Help 253 20 Getting Help Contacting Dell F or cus tomers in the United States, call 800- WWW -DELL (800 -999-3355). NOTE: If you do not have an active Inte rnet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telepho ne-based support and ser[...]

254 Getting Help book.book Page 254 Mon day, June 21, 2010 11:0 0 AM[...]

Index 255 Index A Access Virtual Disk, 64 Advanced F eature Using Snapshot and Disk Copy To g e t h e r, 5 2 Advanced F eatures , 48 Snapshot Repository Virtual Disk, 5 0 Snapshot Virtual Disks, 4 9 Advanced P ath, 140 Array Management T ypes In-Band Management, 6 4 Out-of -Band Management, 6 3 B backplane installing, 2 1 2 re mo v i n g , 2 0 9 Ba[...]

Index 256 D Defining a Host, 84 Dell contacting, 2 5 3 Disk Group Creating, 9 4 Expansion, 1 2 8 Export, 1 3 0 E x p o r t i n g , 130 Import, 1 3 1 Loc a t in g , 9 6 Migration, 1 3 0 Disk Group and Virtual Disk Expansion, 128 Disk Group Operations, 43 Defragmentation, 4 5 Expansion, 4 4 Limit, 4 5 RA I D L ev e l M i g r a t i o n , 4 3 Segment S[...]

Index 257 re mo v i n g , 1 9 2 Hard-Drive Indi cator Pa t t e r n s , 2 6 Ha rd wa re F e a tu re s Back panel features, 2 5 F r ont panel feat ur es, 2 2 Hard drive indicator patterns, 2 6 P ower indicator codes, 2 8 P ower supply and cooling fan features, 2 7 Host Group Adding, 8 7 Create, 8 6 Moving a Host, 8 7 Removing a host, 8 7 Removing a H[...]

Index 258 Vir t u al D i sk C op y , 5 1 Monitoring P erformance, 55 Multi-P ath P r eferred and Al ternate Controllers and P a ths, 5 3 Multi-P ath Software, 52 N Non-Exportable Components, 130 O Other Information, 19 P phone numbers, 2 53 Physical Disk Security with Self Encrypting Disk, 104 Physical Disk States, 36 Physical Disks, 36 Erasing Sec[...]

Index 259 S Safety , 17 safety , 241 Security Key C h a n g i n g , 108 Creating, 1 0 6 Saving, 1 0 9 Segment Size, 41 Setting a P assword, 69 Setting Copy P riority , 161 Simple P ath, 137 SMAR T , 37 SMrepassist Utility , 235 Snapshot Repository Capacity , 146 Snapshot Virtual Disk Creating using advanced path, 1 3 7 Creating using simple path, 1[...]

Index 260 troubleshooting, 241 connections, 2 4 7 cooling problems, 2 4 3 damaged enclosure, 2 4 9 external connections, 2 4 1 hard drives, 2 4 6 loss of communication, 2 4 1 power supply/cooling fan module, 2 4 2 startup failure, 2 4 1 wet enclosur e, 2 4 8 U Unconfigured Capacity , 129 User Interface AMW , 6 1 EMW , 6 0 Overview , 5 9 Using Go T [...]