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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Virtual Disk Copy Types

The Virtual Disk Copy script commands create one of following types of virtual disk copies:
  • A virtual disk copy using a snapshot (legacy), which suspends I/O to the source virtual disk while the copy is in progress. The source virtual disk will not be available during the copy operation. This is called an offline virtual disk copy.
  • A virtual disk copy using a point-in-time copy of any virtual disk, while still allowing access to the source virtual disk when the copy is in progress. This is called an online virtual disk copy.
In either type of virtual disk copy, the target virtual disk is locked and cannot be accessed while the copy operation is in place.

After completion of the virtual disk copy of a snapshot (legacy), the legacy snapshot is disabled. After completion of the virtual disk copy using a snapshot image, the snapshot image is deleted and the snapshot virtual disk is disabled.

  • NOTE: You can have a maximum of eight virtual disk copies in progress at one time. If you try to create more than eight virtual disk copies at one time, the RAID controller modules return a status of Pending until one of the virtual disk copies that is in progress finishes and returns a status of Complete.
  • NOTE: Snapshots created using older (legacy) premium feature versions cannot be managed using newer snapshot premium feature options. Also, a virtual disk in a snapshot group cannot be a target for a virtual disk copy. If you want to choose the base virtual disk of an older (legacy) snapshot virtual disk as your target virtual disk, you must first disable all snapshot (legacy) virtual disks that are associated with the base virtual disk.
The following table lists the Virtual Disk Copy commands.
  • NOTE: These commands apply when you are using a snapshot or a snapshot (legacy) image.
Table 1. Virtual Disk Copy Commands
Command Description
create virtualDiskCopy Creates a virtual disk copy and starts the virtual disk copy operation.
recopy virtualDiskCopy Reinitiates a virtual disk copy operation using an existing virtual disk copy pair.
enable storageArray feature Activates the Virtual Disk Copy feature.
recopy virtualDiskCopy Re-initiates a virtual disk copy operation by using an existing virtual disk copy pair.
remove virtualDiskCopy Removes a virtual disk copy pair.
set virtualDiskCopy Defines the properties for a virtual disk copy pair.
show virtualDiskCopy Returns information about virtual disk copy operations. You can retrieve information about a specific virtual disk copy pair, or all virtual disk copy pairs in the storage array.
show virtualDiskCopy sourceCandidates Returns information about the candidate virtual disks that you can use as the source for a virtual disk copy operation.
show virtualDiskCopy targetCandidates Returns information about the candidate virtual disks that you can use as the target for a virtual disk copy operation.
stop virtualDiskCopy Stops a virtual disk copy operation.

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