82 Snapshot Virtual Disks• Any virtual disk in the disk group is in any state of modification.• The controller that has ownership of this virtual disk is currently addingcapacity to another virtual disk. Each controller can add capacity to onlyone virtual disk at a time.• No free capacity exists in the disk group.• No unconfigured capacity is available to add to the disk group.To expand the snapshot repository virtual disk from MD Storage Manager:1 Click the Modify tab, then click Modify snapshot virtual disks.2 Click Expand Snapshot Repository.3 Click the snapshot repository virtual disk you want to expand.4 If necessary, you can add free capacity to the volume group by adding anunassigned drive. To add an unassigned drive:a Click Add Drives.b Select the capacity to add from the drop-down menu.c Click Add.5 Enter the amount by which you want to expand the snapshot repositoryvirtual disk in the Increase capacity by field.6 Click Finish to expand the capacity of the snapshot repository virtual disk.Re-creating Snapshot Virtual DisksBefore re-creating a snapshot virtual disk, refer to the following guidelines.Disabling a Snapshot Virtual DiskDisable a snapshot virtual disk if one of the following conditions exists:• You do not need the snapshot now.• You intend to re-create the snapshot at a later time and want to retain theassociated snapshot repository virtual disk so that you do not need tocreate it again.• You want to maximize storage array performance by stopping copy-on-write activity to the snapshot repository virtual disk.The SMdevices utility displays the snapshot virtual disk in its output, evenafter the snapshot virtual disk is disabled.
