Administrator Guide

The status of the snapshot virtual disk or consistency group snapshot virtual disk is changed from Disabled to Optimal.
Changing the modification priority of an overall repository
virtual disk
Use the Modification Priority option to specify the modification priority setting for an overall repository virtual disk on a storage array.
You can change the modification priority for an overall repository for the following storage objects:
• Snapshot group
• Snapshot virtual disk
• Consistency group member virtual disk
• Replicated Pair
NOTE: Changing the modification priority by using this option modifies the priority only for the overall repository that
you selected. The settings are applied to all individual repository virtual disks contained within the overall repository.
To change the modification priority:
1. In the AMW, select the Storage & Copy Services tab.
2. Select the storage object for which to change the modification priority.
3. Right click the selected storage object and select Overall Repository > Change Modification Priority.
The Change Disk Pool Settings window is displayed.
4. In the Select modification priority area, move the slider bar to select a priority level.
5. Click OK.
Changing the media scan setting of an overall repository
virtual disk
Use the Change Media Scan Settings option to set the media scan settings for an overall repository virtual disk on a storage array.
You can change the media scan settings for an overall repository for the following storage objects:
• Snapshot group
• Snapshot virtual disk
• Consistency group member virtual disk
• Replicated pair
The following guidelines apply:
• Changing the media scan settings by using this option modifies the settings only for the overall repository that you selected.
• The settings are applied to all individual repository virtual disks contained within the overall repository.
To change the media scan settings:
1. In the AMW, select the Storage & Copy Services tab and select any virtual disk.
2. Select the storage object for which to change the media scan settings.
3. Right click the selected storage object and select Overall Repository > Change Media Scan Settings.
The Change Media Scan Settings window is displayed.
4. Select Enable media scan.
5. Select either With consistency check or Without consistency check, and click OK.
A consistency check scans the blocks in a RAID Level 5 virtual disk, or a RAID Level 6 virtual disk and checks the consistency
information for each block. A consistency check compares data blocks on RAID Level 1 replicated physical disks. RAID Level 0 virtual
disks have no data consistency.
Changing the pre-read consistency check setting of an
overall repository virtual disk
Use the Pre-Read Consistency Check option to define a storage array's capability to pre-read an overall repository virtual disk
consistency information and determine whether the data of that overall repository virtual disk is consistent. An overall repository virtual
disk that has this feature enabled returns read errors if the data is determined to be inconsistent by the RAID controller module firmware.
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Premium feature—Snapshot Virtual Disk