188 Configuration: Premium Feature—Virtual Disk Copy9 Type yes and click Finish.NOTE: Operation in Progress icons are displayed on the source virtual disk and thetarget virtual disk while the virtual disk copy has a status of In Progress or Pending.For more information, see the PowerVault Modular Disk Storage Manageronline help topics.Storage Array Performance During Virtual DiskCopyThe following factors contribute to the overall performance of the storagearray:• 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 thanstandard virtual disksDuring a virtual disk copy, resources for the storage array are diverted fromprocessing I/O activity to completing a virtual disk copy. This affects theoverall performance of the storage array. When you create a new virtual diskcopy, you define the copy priority to determine how much controllerprocessing time is diverted from I/O activity to a virtual disk copy operation.Setting Copy PriorityYou can use the Copy Manager to select the rate at which a virtual disk copycompletes for a selected copy pair. You can change the copy priority for a copypair 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 copyTo set copy priority:1 In the AMW, select Virtual Disk Copy Manager.The Copy Manager window is displayed.
