Re-copying a virtual disk – Dell PowerVault MD3200i User Manual

Page 185

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Configuration: Premium Feature—Virtual Disk Copy

185

Re-Copying a Virtual Disk

You can use the Copy Manager to create a new virtual disk copy for a selected

source virtual disk and a target virtual disk. Use this option when you have

stopped a virtual disk copy and want to start it again or when a virtual disk

copy has failed or completed. The virtual disk copy starts over from the

beginning.

• Possible loss of data—The re-copying operation overwrites existing data on

the target virtual disk.

• Possible loss of data access—While a virtual disk copy has a status of In

Progress or Pending, source virtual disks are available for read I/O activity

only. Write requests are allowed after the virtual disk copy has completed.

Keep these guidelines in mind when re-copying a virtual disk:

• If hosts are mapped to the source virtual disk, the data that is copied to the

target virtual disk when you perform the re-copy operation may have

changed since the previous virtual disk copy was created.

• Select only one virtual disk copy in the

Copy Manager dialog.

To re-copy the virtual disk:

1 Stop all I/O to the source virtual disk and the target virtual disk.
2 Unmount any file systems on the source virtual disk and the target virtual

disk.

3 In the AMW, select Virtual Disk Copy Manager.

The

Copy Manager window is displayed.

4 Select the copy pair in the table.
5 Select Copy Re-Copy.

The

Re-Copy window is displayed.

6 Set the copy priority.

NOTE:

There are 5 copy priority rates available: lowest, low, medium, high, and

highest. If the copy priority is set at the lowest rate, I/O activity is prioritized, and the

virtual disk copy takes longer. If the copy priority is set to the highest priority rate,

the virtual disk copy is prioritized, but I/O activity for the storage array may be

affected.

book.book Page 185 Tuesday, June 18, 2013 3:15 PM

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