Shrinking virtual disks
You can shrink a virtual disk (VDisk) from the Shrinking Virtual Disks panel in the management GUI. Shrinking a VDisk reduces its total capacity. Use this function when you want a FlashCopy® target disk to have the same capacity as its source. However, if the VDisk contains data, do not shrink the size of the disk.
Introduction
Note: This
capability is primarily provided to enable you to change the size
of a target or secondary VDisk. FlashCopy source
and target VDisks must be the same size; Metro
Mirror or Global Mirror primary
and secondary VDisks must be the
same size.
Attributes
The following attributes are displayed:
- Current Capacity
- Displays the current capacity, in megabytes, of the selected VDisk.
Fields
You can update the following fields:
- Reduce Capacity By
- Enter the amount of megabytes by which you want to reduce the capacity of the selected VDisk.
Actions
The following actions are available:
- OK
- Click this button to shrink the capacity of a VDisk.
- Cancel
- Click this button to exit the panel without shrinking the capacity of a VDisk.