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Dell PowerVault MD3460 Series, Руководство пользователя

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Load Balance Policy

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Round Robin With Subset

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Least Queue Depth

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Least Path Weight

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Setting Load Balance Policies in Linux

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Setting Load Balance Policies in VMware

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Содержание PowerVault MD3460 Series

Страница 1: ...Dell PowerVault MD3460 Series Storage Arrays Deployment Guide ...

Страница 2: ...problem WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2014 Dell Inc All rights reserved This product is protected by U S and international copyright and intellectual property laws Dell and the Dell logo are trademarks of Dell Inc in the United States and or other jurisdictions All other marks and names mentioned herein may be trademarks of their res...

Страница 3: ...osures 17 3 Installing MD Storage Manager 19 Installing Host Bus Adapters And Drivers 20 Graphical Installation Recommended 20 Console Installation 21 Silent Installation 21 Silent Installation On Windows 21 Silent Installation On Linux 21 Enabling Premium Features Optional 22 Upgrading PowerVault MD Storage Manager 22 4 Post Installation Tasks 23 Verifying Storage Array Discovery 23 Initial Setup...

Страница 4: ...Load Balance Policy 27 Round Robin With Subset 27 Least Queue Depth 27 Least Path Weight 27 Setting Load Balance Policies in Linux 28 Setting Load Balance Policies in VMware 28 ...

Страница 5: ...ervaultmanuals Management Station Requirements A management station uses MD Storage Manager to configure and manage storage arrays across the network For more information on management station requirements see the Support Matrix at dell com powervaultmanuals Introduction To Storage Arrays An enclosure containing physical disks accessed through RAID controller modules is called a storage array A st...

Страница 6: ...entation NOTE For all PowerVault documentation go to dell com powervaultmanuals and enter the system Service Tag to get your system documentation NOTE For all Dell OpenManage documents go to dell com openmanagemanuals NOTE For all storage controller documents go to dell com storagecontrollermanuals Your product documentation includes Dell PowerVault MD3460 MD3860i MD3860f Storage Arrays Getting St...

Страница 7: ...top left corner of the page 3 Select your support category Technical Support Customer Support Sales or International Support Services 4 Select the appropriate service or support link based on your requirement NOTE If you have purchased a Dell system you may be asked for the Service Tag Documentation Feedback If you have feedback for this document write to documentation_feedback dell com Alternativ...

Страница 8: ...8 ...

Страница 9: ...error conditions Design the configuration of virtual disks disk groups and DDP according to a data organization plan For example use one virtual disk for inventory a second for financial and tax information and a third for customer information Decide whether to allow space for hot spares which automatically replace failed physical disks Connecting The Storage Array The storage array is connected t...

Страница 10: ...at provide only a single data path from a host to the storage array This type of configuration is only recommended for non critical data storage Path failure from a failed or removed cable a failed HBA or a failed or removed RAID controller module results in loss of host access to storage on the storage array Redundancy is established by installing separate data paths between the host and the stor...

Страница 11: ...Figure 1 Two Hosts Connected to Two Controllers 11 ...

Страница 12: ...Figure 2 Four Hosts Connected to Two Controllers 12 ...

Страница 13: ...onnected 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 13 ...

Страница 14: ...trollers 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 14 ...

Страница 15: ...Figure 5 Four Cluster Nodes Connected to Two Controllers 15 ...

Страница 16: ...0 if enabled using Premium Feature activation physical disks using a maximum of two expansion enclosures To connect the MD3060e expansion enclosure to your MD Series Dense RAID storage array 1 Connect the supported SAS cable MiniSAS HD end to SAS OUT Port 0 on the MD Series Dense storage array 2 Connect the other end of the SAS cable to SAS port 1 on the MD3060e Enclosure Management Modules EMM 3 ...

Страница 17: ...troller Module Firmware from the Enterprise Management Window EMW by selecting the array enclosure that you want to update 5 Stop all I O to the storage array and turn off affected host systems attached to the storage array 6 Turn off the storage array 7 Turn off any expansion enclosure s in the affected system 8 Cable the expansion enclosure s to the storage array 9 Turn on the expansion enclosur...

Страница 18: ...18 ...

Страница 19: ...software and providers The core software feature includes the host based storage agent multipath driver and MD Storage Manager application used to configure manage and monitor the storage array solution The providers feature include providers for the Microsoft Virtual Disk Service VDS and Microsoft Volume Shadow Copy Service VSS framework NOTE For more information about the Microsoft VDS and Micro...

Страница 20: ... file NOTE By default Red Hat Enterprise Linux mounts the resource media with the noexec mount option which does not allow you to run executable files To change this setting see the Readme file in the root directory of the installation media 2 Select Install MD Storage Software 3 Read and accept the license agreement 4 Select one of the following installation options from the Install Set menu Full...

Страница 21: ... at dell com support In addition see the Support Matrix at dell com powervaultmanuals for any additional settings and or software required for your specific storage array Console Installation NOTE Console installation only applies to Linux systems that are not running a graphical environment The autorun script in the root of the resource media detects when there is no graphical environment running...

Страница 22: ... the file 3 After the custom_silent properties file is revised run the following command to begin the installation mdss_install bin f host_server_path custom_silent properties Enabling Premium Features Optional If you ordered premium features follow the instructions on the Premium Features card to install the additional features Upgrading PowerVault MD Storage Manager To upgrade from a previous ve...

Страница 23: ...ems in the Enterprise Management Window EMW NOTE Only storage arrays configured with IP address on the same subnet as the management stations will be detected NOTE It may take several minutes for the discovery process to complete Closing the Automatic Discovery Status window before this stops the discovery process After discovery is complete a confirmation screen is displayed 4 Click Close Verifyi...

Страница 24: ...g post installation tasks The array is now ready to be configured See the Administrator s Guide at dell com powervaultmanuals for information about each task and to perform the necessary configuration steps The following table lists the recommended configuration steps that can be accomplished in MD Storage Manager NOTE Before configuring the storage array check the status icons on the Device pane ...

Страница 25: ...oftware from the list of programs and right click 3 Click Uninstall Change The Uninstall Complete window is displayed 4 Follow the instructions on screen 5 Select Yes to restart the system then click Done Uninstall MD Storage Manager From Windows Server Core Versions To uninstall PowerVault Modular Disk Storage Manager on Windows Server Core versions 1 Navigate to the Dell MD Storage Software Unin...

Страница 26: ...ginning the uninstallation procedure 1 From the installation directory open the Uninstall Dell MD Storage Software directory 2 Run the file Uninstall Dell MD Storage Software exe 3 From the Uninstall window click Next and follow the instructions on the screen While the software is uninstalling the Uninstall window is displayed When the uninstall procedure is complete the Uninstall Complete window ...

Страница 27: ...able data path to the RAID controller module that owns the virtual disks This policy treats all paths to the RAID controller module that owns the virtual disk equally for I O activity Paths to the secondary RAID controller module are ignored until ownership changes The basic assumption for the round robin policy is that the data paths are equal With mixed host support the data paths might have dif...

Страница 28: ...perating systems Setting Load Balance Policies in Linux Linux only supports round robin based load balancing For more information see Round Robin With Subset Setting Load Balance Policies in VMware VMware supports Asymmetric Logical Unit Access ALUA For more information on Most Recently Used MRU and Round Robin RR load balancing policies see VMware documents 28 ...

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