Dell MD3620F Server User Manual


 
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
Ty p e
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
.
book.book Page 178 Tuesday, June 18, 2013 3:03 PM