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Dell MD3460 manual

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Table of contents for the manual

  • Page 1

    Dell PowerVault MD3460 Series Storage Arrays Deployment Guide[...]

  • Page 2

    Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 201[...]

  • Page 3

    Contents 1 Introduction........................................................................................................... 5 System Requirements ............................................................................................................................ 5 Management Station Requirements ......................................[...]

  • Page 4

    6 Load Balancing.................................................................................................... 27 Load Balance Policy ............................................................................................................................ 27 Round Robin With Subset ..........................................................[...]

  • Page 5

    1 Introduction This guide provides information about deploying Dell PowerVault MD3460 storage arrays. The deployment process includes: • Hardware installation • Modular Disk Storage Manager (MD Storage Manager) installation • Initial system configuration Other information provided include system requirements, storage array organization, and u[...]

  • Page 6

    • Host server — On a host server system, MD Storage Manager and the storage array communicate management requests and event information using in-band or out-of-band connections. • Management station — On a management station, MD Storage Manager communicates with the storage array either through an Ethernet connection to the storage array ma[...]

  • Page 7

    Contacting Dell NOTE: If you do not have an active Internet connection, you can find the contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your a[...]

  • Page 8

    2 Hardware Installation Before using this guide, ensure that you review the instructions in the: • Dell PowerVault MD3460/MD3860i/MD3860f Storage Arrays Getting Started Guide — The Getting Started Guide that is shipped with the storage array provides information to configure the initial setup of the system. • Dell PowerVault MD Series Storage[...]

  • Page 9

    Each PowerVault MD3460 storage array can be expanded to a maximum of 120 (or 180, if enabled using Premium Feature activation) physical disks through a maximum of two MD3060e series expansion enclosures. Cabling The Storage Array You can cable the storage array to host servers with: • Single path data configuration — A single path configuration[...]

  • Page 10

    Figure 1. Two Hosts Connected to Two Controllers 10[...]

  • Page 11

    Figure 2. Four Hosts Connected to Two Controllers 11[...]

  • Page 12

    Figure 3. Four Hosts Connected to Two Controllers The following figure shows eight hosts, each connected to only one RAID controller module. This configuration allows the maximum number of hosts that may be connected, but provides no redundancy. 12[...]

  • Page 13

    Figure 4. Eight Hosts Connected to Two Controllers The following figures show up to four cluster nodes connected to two RAID controller modules. Since each cluster node has redundant paths, loss of a single path would still allow access to the storage array through the alternate path. 13[...]

  • Page 14

    Figure 5. Four Cluster Nodes Connected to Two Controllers 14[...]

  • Page 15

    Figure 6. Four Cluster Nodes Connected to Two Controllers Cabling PowerVault MD3060e Expansion Enclosures You can expand the capacity of your PowerVault MD3460 Series storage array by adding PowerVault MD3060e expansion enclosures. You can expand the physical disk drive pool to a maximum of 120 (or 180, if enabled using Premium Feature activation) [...]

  • Page 16

    MD3060e Expansion cabling diagrams Figure 7. Single Expansion cabling diagram 16[...]

  • Page 17

    Figure 8. Dual expansion cabling diagram Expanding With New PowerVault MD3060e Expansion Enclosures NOTE: Hot plug of MD3060e expansion enclosure is not recommended. Power on all MD3060e expansion enclosures before you power on the array enclosure. For helpful videos and other resources on PowerVault MD series, see dell.com/PVresources . Perform th[...]

  • Page 18

    For more information, see the Support Matrix at dell.com/powervaultmanuals . 2. Install the software and driver package included on the PowerVault MD Series resource media. For information about installing the software, see Installing MD Storage Manager . 3. Using MD Storage Manager , update the RAID controller module firmware and NVSRAM to the lat[...]

  • Page 19

    3 Installing MD Storage Manager The PowerVault MD Series resource media contains software and drivers for both Linux and Microsoft Windows operating systems. The root of the media contains a readme.txt file describing changes to the software, updates, fixes, patches, and other important data applicable to both Linux and Windows operating systems. T[...]

  • Page 20

    The PowerVault MD Series resource media offers the following installation methods: • Graphical Installation (Recommended) — This is the recommended installation procedure. The installer presents a graphical wizard-driven interface that allows customization of components installed. • Console Installation — This installation procedure is usef[...]

  • Page 21

    8. Start MD Storage Manager and discover the array(s). NOTE: If Dynamic Host Configuration Protocol (DHCP) is not used on the network where the PowerVault MD storage array’s management ports are connected, it is recommended that you enable IPv6 on the management station to discover the storage array(s). NOTE: If automatic discovery does not find [...]

  • Page 22

    NOTE: On Red Hat Enterprise Linux 6 operating systems, run the following script from the root directory to install prerequisite packages: # md_prereq_install.sh 1. Copy the custom_silent.properties file in the /linux directory of the installation media or image to a writable location on the host server. 2. Modify the custom_silent.properties file t[...]

  • Page 23

    4 Post Installation Tasks Before using the Dell PowerVault storage array for the first time, complete these initial configuration tasks in the order shown. These tasks are performed using the MD Storage Manager. 1. For out-of-band management, you must set the network configuration for each RAID controller module, including its Internet Protocol (IP[...]

  • Page 24

    • To add an array, in the EMW, select Automatic Discovery . NOTE: You can also add an array in the EMW using its known management ports IP addresses. Initial Setup Tasks 1. The name of the first storage array found is displayed in the Devices tab of the EMW. To see a list of all storage arrays found on the local network, expand Discovered Storage[...]

  • Page 25

    5 Uninstalling MD Storage Manager Uninstalling MD Storage Manager From Windows To uninstall the Modular Disk Storage Manager from Microsoft Windows Server: 1. Double-click Add or Remove Programs from the Control Panel . 2. Select Dell MD Storage Software from the list of programs. 3. Click Change/Remove . The Uninstall Complete window is displayed.[...]

  • Page 26

    Uninstalling MD Storage Manager From Linux By default, PowerVault MD Storage Manager is installed in the /opt/dell/mdstoragemanager directory. If another directory was used during installation, navigate to that directory before beginning the uninstallation procedure. 1. From the installation directory, open the Uninstall Dell MD Storage Software di[...]

  • Page 27

    6 Load Balancing Load Balance Policy Multi-path drivers select the I/O path to a virtual disk through a specific RAID controller module. When the multi-path driver receives a new I/O to process, the driver tries to find a path to the current RAID controller module that owns the virtual disk. If the path to the current RAID controller module that ow[...]

  • Page 28

    If more than one data path to the virtual disk has the same weight value, the round robin with subset path selection policy is used to route I/O requests between the paths with the same weight value. The least path weight load balance policy is not supported on Linux operating systems. Setting Load Balance Policies in Linux Linux only supports roun[...]