NEC EXPRESS5800 manual

NEC Express5800 Series Web-based Promise Array Management Professional User's Guide (Linux Version) (For N8103-105 Disk Array Controller) 1st Edition 08-2007 856-840000-889-A[...]

Preface This User's Guide explains the management utility [W eb-based Promise Arr ay Management Professional] to be used for operating N8103-105 Disk Array Controller provided by Promise. Some of the features explained in this guide may not be supported in your environment. Please be sure to read the User ’ s Guid e supplied with the platfor[...]

(7) NEC will not guarantee the proper operation of the open source software including Linux kernels. Please be sure to implement and opera te the Linux system based on the principle of self-responsibility .[...]

Content s 1. Overview .................................................................................................................... 1 1.1 W eb-based Promise Array Management Professional .......................................................... 1 1.2 Precautions ...............................................................................[...]

3.14 Initializing Logical Drive ................................................................................................... 63 3.15 Creating or Deleting Spare Drives ..................................................................................... 64 3.15.1 Creating Spare Drives ..........................................................[...]

- 1 - 1. Overview 1.1 W eb-based Promise Array Management Professional W eb-based Promise Array Management Professional (hereafter abbreviated for W ebP AM PRO) is a W eb-based application that locally or remotely manages N8103-105 Disk Array Controller provided by Promise. W ebP AM PRO only supports Mozilla Firefox 1.5 or later (when monitoring fr[...]

- 2 - 1.2 Precautions Be sure to read the following notes a nd precautions before using W ebP AM PRO:  It is strongly recommended to provide media patrol or redundancy check routinely for all logical drives and HDDs to be connected. Whether the media patrol or the redundancy check is used may be determined as follows depending on the environment[...]

- 3 - 2. Inst allation/Uninst allation 2.1 Operation Environment for W ebP AM PRO The following operation environment is required for t he proper operation of W ebP AM PRO. - Hardware NEC EXPRESS5800 server available for the “N8103-105 Disk Array Controller (SAS)” - Software RHEL AS/ES 4 Update 5 or later ML4SP2 or later IMPORT ANT :  Only u[...]

- 4 - 2.3 Uninst alling W ebP AM PRO IMPORT ANT : Follow the procedure described in this chapter to uninstall W ebP AM PRO. NOTE: W ebP AM PRO is required for managing the RAID system. Do not uninstall W ebP AM PRO unless you have to uninstall for maintenance including the upgrade of the utility . 1. Go to the folder that W ebP AM PRO has been inst[...]

- 5 - 3. Operation This chapter describes how to start W ebP AM PRO and operations on screens appearing after starting W ebP AM PRO. 3.1 S t arting and Exiting WebP AM PRO IMPORT ANT :  For a specific controller , do not start more than one web browser or more than one tab in a browser concurrently .  Y ou need a certificate for security when[...]

- 6 - 3.1.1 Controlling WebP AM PRO with a Local Computer 1. Start W ebP AM PRO by either of the following methods. - Double-click the W ebP AM PRO icon on the desktop. - <On RHEL> Select [Application] (the main menu on the panel) → [Accessory] → [W ebP AMPRO ]. Then click [W ebP AMPRO]. <On Miracle> Sel ect [Start ] (the main menu [...]

- 7 - 3.1.2 Controlling WebP AM PRO with a Remote Computer NOTES:  If using a proxy server for making access to the Internet, you need to bypass the proxy server . See Appendix A for the setting procedure.  If a firewall function is running on the system (server), you may not controll from the remote computer . In this case, change the settin[...]

- 8 - 3.2 W ebP AM PRO Operation Window 3.2.1 Using WebP AM PRO for the First T ime 1. Click the Subsystem/Host Management icon in the T ree V iew appearing at the left side of the screen. 2. Click the Add Subsystem/Host tab in the scr een appearing at the right side of the screen.[...]

- 9 - 3. Make sure that "127.0.0.1" is entered in th e Subsystem/Host Port IP address field, and click the [Submit] button. The host PC information appears in the Tree V iew .[...]

- 10 - 3.2.2 WebP AM PRO Operation Screen The W ebP AM PRO window is mainly configured with three parts; T ree V iew , Management W indow , and Event Frame. T ree View The T ree V iew can indicate the configuration of th e RAID system hierarchically in the similar way as W indows Explorer . Each item at a specifi c level can be expanded by displayi[...]

- 11 - 3.3 Icons When you click the link to an icon on the T ree V iew , several setting and status display screens appear on the Management W indow . The features grayed out on the Management W indow are unavailable. For details of featur es, see the relevant chapters. T ree V iew Management Windo w display Home icon Indicates the name of the curr[...]

- 12 - T ree V iew Management Windo w display Controller icon Indicates the information on BIOS and drivers. In addition, you can provide various settings including performance, display battery st atus and display or change buzzer setting. Enclosure icon Indicates the enclosure information. See the following description for det ails. Physical Drive[...]

- 13 - 3.4 Managing Users Creating user account T o create a new user account, follo w the procedure described below: 1. Logon to W ebP AM PRO as an administrator , or a super privilege user . 2. Click the User Management in the Tree V iew and then click the Create tab in the Management W indow . 3. Set the items in the Create tab as shown in the t[...]

- 14 - Privilege Description Power Users of the privilege can create (but ca nnot delete) disk arrays and logical drives, change RAID l evels and stripe sizes and set or change component s of disk arrays, logical drives and physical drives Super Users of the privilege have all access authoritie s. The users can create, delete or chan ge all disk ar[...]

- 15 - Deleting User Account 1. Logon to W ebP AM PRO as an administrator , or a super privilege user . 2. Click the User Management in the Tree V iew and then click the Dele te tab appearing in the Management W indow . 3. Check the checkbox located to the left of each user to be deleted and click [Submit]. The confirmation dialog box appears. Clic[...]

- 16 - 3.5 Several Settings and Information Review Clicking an icon on the T ree V iew allows the re levant information to be d isplayed on the Management V iew . In the Management W indow , you can view the following information or set several features. 3.5.1 Subsystem (ST EX4650EL) Icon If you select the subsystem (ST EX4650 EL) icon in the T ree[...]

- 17 - Firmware Up date tab The Firmware Update tab allows the firmware for the RAID card to be updated from W ebP AM PRO. Do not manipulate this tab generally because it is provided only for maintenance. Health t ab The Health tab indicates the health status of th e controller , disk arrays, logical drives, spare drives and connected HDDs. Event t[...]

- 18 - If you click the downward arrow at the right end of the tab, then a menu item for changing the priorities of tasks (Settings) and those for starting tasks appear . Settings menu Rebuild Rate Set the priority of rebuild processing. The default is Medium. Logical Drive Initialization Rate Set the priority of logical drive initializatio n. The [...]

- 19 - IMPORT ANT : The information is set to proper values by default. Do not change the settings. Scheduler t ab If you click the center of the Scheduler tab, then tasks already scheduled are listed. One or more tasks may be scheduled. If you click the link of a scheduled task, the detailed settings appear . This screen allows you to change the i[...]

- 20 - Information t ab The Information tab indicates the information on the controller . Settings t ab The Settings tab allows you to set alias of the controller , provide settings on S.M.A.R.T . detection or set write cache of the controller . Th e information is set to proper values by default. As a rule, do not change the settings. IMPORT ANT :[...]

- 21 - <Description of major items> Adaptive Writeba ck Cache Adaptive Writeba ck Cache controls the wr ite ca che mode for all of the logical drives per controller ba se. Checked: When the following conditions m atch, the write policy of all logical drives under the controller set s to “Write Through”, regardless of the write policy sett[...]

- 22 - Buzzer t ab If you click the center of the Buzzer tab, the current buzzer setting appears. Clicking the downward arrow at the right end of the tab and selecting "Settings," you can change the buzzer setting. If the setting is change d, click [Submit] to enable the new setting. Buzzer ringing is disabled by default. 3.5.3 Enclosure [...]

- 23 - Global Settings t ab The Global Settings tab allows you to provide settings on write and read caches for all physical drives. IMPORT ANT :  “SA T A Drive Settings” is not supported.  The write cache option is provided for HDDs and different from the cach e on the disk array controller . For the setting of write cache for logical dr[...]

- 24 - 3.5.5 Physical Drive If you click a specific Slot icon below Physical Dr ives in the T ree V iew , then the information on the HDD appears in the Management W indow .[...]

- 25 - Information t ab <Description of major items> Operation S t atus OK The physical drive operates normally . Rebuilding The physical dr ive is being rebuilt. OK, PDM Running The physical drive is running PDM. OK, Media Patrol Running The physical drive is running media p atrol. OK, T ransition Run ning The physical drive is running trans[...]

- 26 - 3.5.6 Disk Arrays If you select the Disk Array s icon in the T ree V iew , all disk arrays are listed in the Management W indow . Information t ab The Information tab lists existing disk arrays. Create t ab For the Create tab, see "3.6 Creating Disk Array and Logical Drive." Delete t ab For the Delete tab, see "3.7 Deleting Di[...]

- 27 - <Description of major items> Operation S t atus OK The disk array operates normally . Degraded One of the members of the disk array is in abnormal status. Offline The disk array is in of fline status. OK, Rebuilding The disk array is being rebuilt. OK, PDM Running The disk array is under PDM. OK, T ransition Run ning The disk array is [...]

- 28 - 3.5.8 Logical Drives If you select the Logical Drives icon in the T ree V iew , all logical drives are listed in the Management W indow . Information t ab The Information tab lists existing disk arrays. 3.5.9 Logical Drive If you click a specific Logical Drive icon below "L ogical Drive V iew" in the T ree V iew , then the informat[...]

- 29 - Current W rite Policy This item indicates the status of the current write cache for this logical drive. The status varies depending on the setting of write cache for each logical drive, setting of write cache for the entire controller (Adaptive W riteback Ca che), exis tence of battery connection and battery status in the battery connection [...]

- 30 - See the description of each BGA for deta ils. Check T able tab If a consistency error is detected during redundanc y check and the error cannot be repaired, the error is registered in the Check T able tab. Check T able T ype All: Indicates all error types. Read Check: List s read errors. Write Chec k: Lists write errors. Inconsistent Block: [...]

- 31 - 3.6 Creating Disk Array or Logical Driver A disk array can be created in any of the following three ways. Automatic Configuration Checks the number of unconfigured HDDs connected currently and creates disk arrays of a proper cap acity and RAID level and logical drives automatically . Express Configuration Cr eates disk arrays and lo gical dr[...]

- 32 - The following options can be set. Redundancy Determines whethe r redundant logical drives are created or not. If you check the checkbox, RAID1, RAID5 or RAID10 is created depending on the number of conn ected HDDs available for creating logical drives. If you do not check the chec kbox, RAID0 is created. Note: If only a single HDD available [...]

- 33 - The following list shows the difference of the settings for each Application T y pe. T ype S tripe Size Read Policy Write Policy File Server 64KB Read Ahead W rite Back Video S tream 1MB Read Ahead W rite Through T ransaction Data 64KB No Cache Write Throug h - T ransaction Log 64KB Read Cache Write Back - Other 64KB Read Ahead Write Back Th[...]

- 34 - Advanced Configuration (S tep 1 - Disk Array Creation) Disk Array Alias Alias (any name) Enable Media Patrol Enables media patrol. The checkbox is checked by default. For details of media p atrol, see "3.9 Media Patrol." Enable PDM Enables PDM. The che ckbox is checked by default. If an error occurred in any HDD in logica l drive w[...]

- 35 - Advanced Configuration (S tep 2 - Logical Drive Creation) Alias Alias (any value) RAID level Indicates the available RAID level depending on the number of physical drives selected in the previous screen. RAID0 for a single physical drive RAID0 or RAID1 for two physical drives RAID0 or RAID5 for three physical drives RAID0, RAID5 or RAID10 fo[...]

- 36 - Advanced Configuration (S tep 3 - Summary) If no problems are found, click [Submit] . Disk arrays and logical drives are created. 3.6.4 Adding Logical Drives If a disk array already created has empty capacity , logical drive can be added later . 1. Select a disk array to which you want to add logical drives and click the Create LD tab. The l[...]

- 37 - 3.7 Deleting Disk Array or Logical Drive IMPORT ANT : Delete neither disk arrays nor logical drives saving W indows file sy stems. Before a disk array or logical drive can be deleted, you must confirm that the disk array or logical drive does not save any W indows system file. 3.7.1 Deleting Disk Array 1. Click a disk array icon which you wa[...]

- 38 - 3.8 Redundancy Check Routine redundancy check allows consistencies to be detected, checked and repaired to prevent rebuild from failing at occurrence of a fault in an HDD. This is possible for logical drives of RAID level 1, 10 or 5. The redundanc y check can also repair bad sectors detected during inconsistency check. T o keep a RAID syste [...]

- 39 - The progress of the redundancy check appears in the Background Activities tab. If you click the link of the displayed task being advanced, the current progress status appears. On the screen, you can pause or stop the task. Y ou can see the Progress bar . NOTES:  If you try to provide a logical drive not f ull-initialized after its creatio[...]

- 40 - 3.8.1 Scheduling Redundancy Check T o schedule routine redundancy check, follow the procedure below . 1. Click the subsystem (ST EX4650EL) icon in the T ree V iew . 2. Click the downward arrow at the right end of the Scheduler tab in the Management W indow and then click Add BGA Scheduler . 3. Set the following values and click [Next] . Sche[...]

- 41 - (Do not provide setting for any option wi th "*unav ailable." Failure to follow this instruction may cause the system to operate improperly .) Run T ime - S tart T ime Enter the st art time. Y ou can set the hour with the left pull-down menu and the minute in five minutes with the right pull-down menu. Recurrence Pattern The displa[...]

- 42 - Apply to Redundant Logical Drives Check the checkboxes of logical drives for which you want to schedule redundancy check. Do not use the options with “*unavavailable” suf fixed in the above list. 5. After the settings are completed, click [Submit]. Click [Back] to return to the previous screen. Click [Cancel] to cancel the settings. If r[...]

- 43 - click Delete Schedules. 3. Check the checkbox of the redundancy check whic h you want to delete and click [Submit]. The confirmation dialog box asking whether th e redundancy check may be deleted appears. Click [OK]. NOTE: Y ou can set a single schedule of redundancy check for a single logical drive.[...]

- 44 - 3.9 Media Patrol The media patrol feature provides entire reading for the following tar get HDDs. Becaus e of aged deterioration, it may not be possible to de tect faults of HDDs un til they are accessed. The media patrol, or routine read and check of data in HDDs, allows such faults to be detected as soon as possible. Therefore, you can tak[...]

- 45 - The media patrol is started. The progress of the media patrol appears in the Background Activities tab. If you click the link of the displayed task being advanced, the current progress status appears. On the screen, you can pause or stop the task. Y ou can see the Progress bar . The following items appear in the screen indicating the progres[...]

- 46 - Progress on Curre nt Physical Drive Indicates the progress of the cu rrent media patrol on a physical drive . Number of Physical Drives Completed Indicates the number of physical d rives on which media patrol has already been co mpleted. Number of Physical Drives Queued Indicates the number of physical d rives on which media patrol is to be [...]

- 47 - T o add schedule setting of media patrol, follow the procedure below . 1. Click the subsystem (ST EX4650EL) icon in the T ree V iew . 2. Click the arrow at the right end of the Sche duler tab in the Mana gement W indow and then click Add BGA Scheduler . If media patrol is already set, Media Patrol does not appear in the Scheduler Name option[...]

- 48 - Recurrence Pattern The display screen varies depe nding on the Recurrence Pattern selected in the previous scre en. [daily] • [Every–days] (*unavailable) [weekly] • [Every–weeks] (*unavailable) • Check the checkbox of the day of the week o n which you want to run media patrol. [monthly] • [Day of Month] Set the date on which you [...]

- 49 - Suspending (deleting) schedule setting 1. Click the subsystem (ST EX4650EL) icon in the T ree V iew . 2. Click the arrow at the right end of the Sche duler tab in the Mana gement W indow and then click Delete Schedules. 3. Check the checkbox of the media patrol whic h you want to delete and click [Submit]. The confirmation dialog box asking [...]

- 50 - 3.10 Rebuild The rebuild feature can recover redundancy if a si ngle HDD is defected in RAIL level 1, 10 or 5. During rebuild, data read/write is enabled. However , the redundancy is lost until the rebuild operation is completed. If an HDD is defected, logical drives are entered into the critical state, of which you are notified. IMPORT ANT [...]

- 51 - 3.10.3 Manual Rebuild For manual rebuild, follow the procedure below . 1. Click a degraded disk array in the T ree V iew . 2. Click the arrow at the right end of the Background Activities tab in the Management W indow and select Start Rebuild 3. Specify source and target HDDs on rebuild. Source Physical Drive S pecify a normal phy sical driv[...]

- 52 -  If Enable Buzzer is checked in controller setting, the buzzer rings with the logical drive being in the critical or offline state or rebuilt. T o turn on/off the buzzer , check or uncheck the checkbox of Enable Buzzer in the Controller Settings tab. See the description of the Buzzer tab in "3.5.2 Controller" for details. Buzzer[...]

- 53 - 3.11 PDM The PDM (Predictive Data Migration) feature al way s monitors HDDs configuring logical drives, previously senses HDDs suspected to be defected an d copies data in the HDDs to spare drives. Different from the rebuild feature, PDM can be done without degrading of logica l drives. After the data copy , the status display of the sour ce[...]

- 54 - 3. Specify the following. Source Physical Drive S pecify the physical drive which is suspected to be defected and from which dat a is desired to be copied. T arget Physical Drive S pecify a physica l drive to which dat a is to be copied. 4. Click [Submit]. PDM is started. It may take much time depending on the capacity . During the execution[...]

- 55 -[...]

- 56 - 3.12 T ransition At the occurrence of a fault, logical drives may be degraded and recovered by hot spare rebuild. This results in separation of the configured slot positions of the logical drives. However , creating spare drives of revertible type previously (see "3.15 Creating or Deleting Spare Drives") allows logical drives to be[...]

- 57 - 3. Hot spare rebuild is done by using PD4 to create a logical drive having PD1, PD3 and PD4 as configured HDDs. 4. Replace the defected physical drive with a ne w physical drive having a capacity equal to or larger than the capacity of the defected drive. 5. T ransition is automatically started to m ove data from the spare drive to the new p[...]

- 58 - <Example of manual transition> 1. Original state: RAID1 Create spare drives of revertible type. (See "3.15 Creating or Deleting Spare Drives" for details.) 2. Occurrence of a fault in PD2 A fault occurs in a phy sical drive among those configuring a disk array . The disk array is entered into the degraded state (logical dr iv[...]

- 59 - 3. Hot spare rebuild is done by using PD4 to create a logical drive having PD1 and PD4 as configured HDDs. 4. T o make free physical drive PD3 be a configured HDD of the original logical drive, you can select PD3 manually in this state to run transition. (1) Click the arrow at the right end of the B ackground Activities tab and select Start [...]

- 60 - NOTE: The “Operation S tatus” field may show “T ransition Running” although T ransition has finished. Check the messages regarding T ransition in the application log to find that the transition processing has finished.[...]

- 61 - 3.13 T ransport The transport feature is used to move a disk array in the online state with its normal status remaining unchanged. 1. Click a disk array for which you want to pr ovide transport in the T ree V iew and click the T ransport tab. 2. Click [Submit]. 3. The confirmation dialog box appears. T ype "confirm" and click [OK].[...]

- 62 - 5. Insert the pull-out HDDs into slots in the environment subordinat e to a new disk array controller N8103-105 and refresh the HDDs. Then a normal disk array is recognized.[...]

- 63 - 3.14 Initializing Logical Drive A disk array can be initialized additionally after it is created. Full initialization set all data bits in logical dr ives to zero. If logical drives are created, it is recommended to run full initialization first. IMPORT ANT :  Initialization erases all data completely . Be sure to back up important data b[...]

- 64 - 3.15 Creating or Deleting S p are Drives 3.15.1 Creating S p are Drives IMPORT ANT : The following HDDs cannot be used for spare drives. - HDD that has been configured to any disk array - HDD with partitions. Spare drives are used to protect a redundant logical drive when hard disk drives in the logical drive are defected. That is, if a hard[...]

- 65 - 4. Click the Update button. The specified spare drives are added to the list of New Hot Spare Drives at the bottom. 5. Click [Submit]. The spare drives are defined. The created spare drives appear additionally in the Information tab. IMPORT ANT :  The HDDs that are not configured to an logical drive nor set as spare cannot be used as spar[...]

- 66 - 3.15.2 Deleting S p are Drives Follow the procedure below to delete spare drives. 1. Click Spare Drives in the T ree V iew . 2. Click the Delete tab in the Management W indow . Check the checkboxes of spare drives to be deleted and click [Submit]. The following popup appears. Confirm the inform ation and click [OK]. The selected spare drives[...]

- 67 - 3.16 Exp ansion IMPORT ANT :  Before logical drives are provided with expansion, be sure to back up the data in the disks. If an unexpected error occurs during expansion, data in the disks may be destroyed.  In this feature, only RAID5 configured with three physical drives can be expanded to that configured with four drives.  For ex[...]

- 68 - 2. Click the arrow at the right end of the Background Activities tab in the Management W indow and select Start Migration. 3. Select physical drives used for the expansion. Click [>>] to move the physical drives to the Selected frame. Click [Next].[...]

- 69 - 4. Set detailed information on the disk array . RAID Level RAID5 only Expand Cap acity Check the checkbox to increa se the capacity . This item is grayed out if the disk array has no empty capa city . Capacity T o increase the capacity , specify the value. Click [Update]. The state resulting from expansi on is displayed graphically in the Ca[...]

- 70 - 6. The confirmation dialog box appears. T ype "confirm" and click [OK]. The screen indicating the progress of the expansion appears. C l i c k Y ou can see the Progress bar .[...]

- 71 - 3.17 Event W ebP AM PRO classifies every event occurred in a RAID system as an error , warning or information to record it. This is effective to diagnose or solve faults occurred in the system. IMPORT ANT : The log times appearing on the W ebP AM PRO screen are later than the times at wh ich the events occur . See the application l og of OS [...]

- 72 - If an event occurs, such a popup as shown belo w appears at the upper right corner of the W ebP AM PRO screen. NOTE: Sorting the events is unavailable.[...]

- 73 - 3.18 Collecting Configuration Information Controller and array configuration information can be saved in a text format by specifying destination. The feature is intended for maintena nce. Collect configuration i nformation in the procedure below if you are directed by a maintenance engineer . 1. Click the subsystem (ST EX4650EL) icon in the [...]

- 74 - Appendix A First Logon Perform the following procedure to m ake settings for security : 1. The security alert dialog box appears. Click [Examine Certificate…] to display the certificate. 2. The [Certificate V iewer] dialog box appears. After confirming the description, click [Close]. 3. T o accept the certificate, cli ck [Accept this certi[...]

- 75 - window will be displayed at next logon. The setting for security is completed.[...]

- 76 - Appendix B Report Monitoring T o use Alert notification feature after installing NEC ESMPRO Manager , the following settings are required. (This feature can be used only in the W indows environment.) 1. Untar the W ebP AM PRO installation module. Ex.) As the W ebP AM PRO installation module is “WPPInst-1.00.tar .gz”: # tar -zxvf WPPInst-[...]

- 77 - Alert report messages and actions After the installation of W ebP AM PRO, the fo llowing messages registered with the name "Promise Event Logger" are set as reported sources. T o change the setting, redefine it by using the report setting feature of the NEC ESMPRO Agent. Eve nt ID Mess age Action 512 Battery temperature is above th[...]

- 78 - Eve nt ID Mess age Action 6684 Physical Disk is marked as DEAD due to PF A condition of the disk Replace the failed HDD. 6685 Physical Disk is marked as DEAD due to forced offline state Replace the failed HDD. 6149 RAID migrati on has encountered a physical disk error Physical disk error detected. If it cannot be fixed, replace the HDD. 6150[...]