Dell MD3200, MD3220 owner manual Creating a Virtual Disk Copy for an Mscs Shared Disk, 166

Creating a Virtual Disk Copy for an MSCS Shared Disk

To create a virtual disk copy for a Microsoft Cluster Server (MSCS) shared disk, create a snapshot of the virtual disk, and then use the snapshot virtual disk as the source for the virtual disk copy.

NOTE: An attempt to directly create a virtual disk copy for an MSCS shared disk,

rather than using a snapshot virtual disk, fails with the following error: The operation cannot complete because the selected virtual disk is not a source virtual disk candidate.

NOTE: When creating a snapshot virtual disk, map the snapshot virtual disk to only one node in the cluster. Mapping the snapshot virtual disk to the host group or both nodes in the cluster may cause data corruption by allowing both nodes to concurrently access data.

Virtual Disk Read/Write Permissions

After the virtual disk copy is complete, the target virtual disk automatically becomes read-only to the hosts. The target virtual disk rejects read and write requests while the virtual disk copy operation has a status of Pending or In Progress or if the operation fails before completing the copy. Keep the target virtual disk Read-Only enabled if you want to preserve the data on the target virtual disk for reasons such as the following:

•If you are using the target virtual disk for backup purposes.

•If you are using the data on the target virtual disk to copy back to the source virtual disk of a disabled or failed snapshot virtual disk.

If you decide not to preserve the data on the target virtual disk after the virtual disk copy is complete, change the write protection setting for the target virtual disk to Read/Write.

To set the target virtual disk read/write permissions:

1In the AMW, select Virtual Disk→ Copy Manager. The Copy Manager window is displayed.

2Select one or more copy pairs in the table.

3Perform one of these actions:

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Configuration: Premium Feature—Virtual Disk Copy