Why mpio

Each network interface card or HBA should be connected by using redundant network switching to provide continued access to storage in the event of a failure. The Microsoft DSM provides the following load balancing policies. Support Wissensdatenbankartikel.

Artikelnummer: Druck E-Mail English. Zusammenfassung: Gain insight and information on Dell EMC Storage products from engineers, peers and experts in the industry.

Weniger anzeigen Gain insight and information on Dell EMC Storage products from engineers, peers and experts in the industry. See the Installing Multipath-IO section for more details. These steps work for Windows Server , R2, , and The only differences between the graphical user interface is the changes in the dialogs visual appearances.

The example provided in this section are taken from Windows Server No 3rd party DSMs are supported. A Reboot Required dialog box will be displayed after completing this configuration. Choose Yes or No depending on what other management or application tasks you are performing, but keep in mind that a reboot is required for the new MPIO Devices settings to take effect. If iSCSI connectivity is being used, you may ignore this reboot requirement.

The reason for this is to reduce the number of reboot cycles for the Windows Server host since adding iSCSI support requires an additional reboot.

Click OK. You will be prompted to perform a reboot at this time. However, Pure Storage does recommend that you should verify that the policies have taken effect by viewing the Disk Properties as shown below.

Once the FlashArray volumes are presented to the host and added via the Disk Management console, the policy of Round Robin is applied to those volumes unless another policy type has been set as the Global default.

The next sections walk through each of these management tasks using the graphical user interface GUI or Windows PowerShell.

When setting the default load balance policy the -Policy parameter provides a ValidateSet which includes the following:. When using the Windows PowerShell entering tab after the -Policy parameter will cycle through the different options. Volumes connected after the default MPIO policy has been set will use that policy unless explicitly configured to use an alternate policy. This policy uses a single active path, and the rest of the paths are standby paths.

You can copy the command from the output of the mpclaim -e command. After the preceding command is executed, the host restarts automatically. Ensure that you modify the properties of every LUN. After the host has restarted, right-click a disk discovered by the server and choose Properties from the shortcut menu. Activate path verification. After the host has been restarted, verify that all parameters have been modified.