Dell POWERVAULT MD3600F - Manual (Page 180)

178 Configuration: Premium Feature—Virtual Disk Copy
8 In the Select copy priority area, select the relevant copy priority and click
Next.
The
Confirmation window displays the summary of your selections.
9 Type yes and click Finish.
NOTE: The Operation in Progress icon is displayed on the source virtual disk and
the target virtual disk while the virtual disk copy has a status of In Progress or
Pending.
Storage Array Performance During Virtual Disk
Copy
The following factors contribute to the overall performance of the
storage array:
• I/O activity
• Virtual disk RAID level
• Virtual disk configuration—Number of drives in the virtual disk groups
• Virtual disk type—Snapshot virtual disks may take more time to copy than
standard virtual disks
During a virtual disk copy, resources for the storage array are diverted from
processing I/O activity to completing a virtual disk copy. This affects the
overall performance of the storage array. When you create a new virtual disk
copy, you define the copy priority to determine how much controller
processing time is diverted from I/O activity to a virtual disk copy operation.
Setting Copy Priority
You can use the Copy Manager to select the rate at which a virtual disk copy
completes for a selected copy pair. You can change the copy priority for a copy
pair at any of these times:
• Before the virtual disk copy begins
• While the virtual disk copy has a status of
In Progress
• When you re-create a virtual disk copy
To set copy priority:
1 In the AMW, select Virtual DiskCopy Manager.
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