Administrator Guide

• Reinitialize the content of the base virtual disk.
• Perform a new rollback operation to restore the base virtual disk (using either the same snapshot image that was used in the Cancel
Rollback operation or a different snapshot image to perform the new rollback operation).
NOTE: If the snapshot group on which the snapshot image resides has one or more snapshot images that are
automatically purged, the snapshot image used for the rollback operation may not be available for future rollbacks.
1. From the AMW, select the Storage & Copy Services tab.
2. Select a snapshot image of either a base virtual disk or of a consistency group’s member virtual disk and then select Copy Services >
Snapshot Image > Rollback > Advanced > Cancel.
The Confirm Cancel Rollback window is displayed.
3. Click Resume.
4. Click Yes to cancel the rollback operation.
5. Type yes in the text box, and click OK.
Viewing the progress of a snapshot rollback
You can view the progress of the rollback operation in the Properties pane of the AMW when you select the base virtual disk or
consistency group member virtual disk in the Logical pane.
When a rollback operation is in progress, the following information is displayed:
• The Operation in Progress bar at the bottom of the Properties pane.
• The time remaining.
The Rollback operation is a long-running operation. The Operations in Progress window displays all of the long-running operations that
are currently running on the storage array. From this window, you can view the progress of the rollback operation for a snapshot image
and its associated base virtual disk or consistency group member virtual disk.
1. From the AMW, select the Storage & Copy Services tab.
2. Select the storage array for which you want to display the operations in progress.
The Operations in Progress window is displayed.
3. To view the progress for operations that affect a base virtual disk or a consistency group snapshot image, click the triangle next to a
base virtual disk or a consistency group snapshot image to expand or collapse it.
4. To change the interval for refreshing the display, use the spinner box in the lower-right corner of the window, and click Update.
5. To refresh the display immediately, click Refresh Now.
Changing snapshot rollback priority
You can set the priority for a rollback operation. Higher priority allocates more system resources for the rollback operation and might
affect the overall system performance.
You can change the rollback priority at any of these times:
• Before the rollback begins
• While the rollback operation has a status of In Progress
There are five priority rates available: lowest, low, medium, high, and highest.
• If the priority is set at the lowest rate, I/O activity is prioritized and the rollback operation takes longer time to complete.
• If the priority is set at the highest priority rate, the rollback operation is prioritized, but I/O activity for the storage array may be
affected.
1. From the AMW, select the Storage & Copy Services tab.
2. Do one of the following:
• Select a snapshot image of either a base virtual disk or of a consistency group’s member virtual disk and then select Copy
Services > Snapshot Image > Rollback > Change Priority.
• Select a consistency group of either a base virtual disk or of a consistency group’s member virtual disk and then select Copy
Services > Consistency Group Snapshot Image > Rollback > Change Priority.
The Change Rollback Priority window is displayed.
3. In the rollback priority area, use the slider bar to set a priority for the rollback operation.
If you are changing the priority for a consistency group snapshot image, the priority setting is applied to all member virtual disks in the
selected consistency group.
4. Click Change to apply your changes to the rollback priority.
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Premium feature—Snapshot Virtual Disk