Dell POWERVAULT MD3620I - Manual (Page 188)

188 Configuration: Premium Feature—Virtual Disk Copy
9 Type yes and click Finish.
NOTE: Operation in Progress icons are displayed on the source virtual disk and the
target virtual disk while the virtual disk copy has a status of In Progress or Pending.
For more information, see the PowerVault Modular Disk Storage Manager
online help topics.
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.
The Copy Manager window is displayed.
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