User's Manual

Virtual Disks 261
Unmirror
Does my controller support this feature? See Supported Features.
Use the Unmirror task to separate mirrored data and restore one half of the
mirror to free space. Unmirroring a RAID 1 or RAID 1-concatenated virtual
disk results in a single, non-redundant concatenated virtual disk. Unmirroring
a RAID 10 virtual disk results in a single, non-redundant RAID 0 (striped)
virtual disk. Data is not lost during this operation.
NOTE: The Unmirror task is not supported on the CERC SATA1.5/2s controller.
NOTE: On the CERC SATA1.5/6ch controllers, doing an Unmirror on a RAID 1-
concatenated virtual disk results in a concatenated virtual disk that cannot be
subjected to any further modification. You cannot reconfigure or add disks to the
resulting concatenated virtual disk. If you do an Unmirror on a RAID 1 virtual disk,
the resulting concatenated virtual disk can be reconfigured back to a RAID 1 virtual
disk. After you have reconfigured to a RAID 1 virtual disk, further reconfiguration
may be possible.
NOTE: This operation is not supported when using a dynamic virtual disk with a
CERC SATA1.5/6ch controller.
NOTE: On Linux, an Unmirror cannot be performed on a mounted virtual disk.
To Unmirror:
Click Unmirror. To exit without unmirroring, click Go Back To Virtual Disk
Page.
CAUTION: Your virtual disk is longer redundant.
To locate this task in Storage Management:
1 Expand the Storage tree object to display the controller objects.
2 Expand a controller object.
3 Select the Virtual Disks object.
4 Select Unmirror from the Available Tasks drop-down menu.
5 Click Execute.
Related Information:
• Rescan to Update Storage Configuration Changes