Users Guide

Disk Groups and Virtual Disks 63
If you receive a warning that the snapshot repository virtual disk is becoming
full, you may expand the snapshot repository virtual disk from MD Storage
Manager. See "Snapshot Repository Capacity" on page 81 for step-by-step
instructions.
Disk Group Migration
Disk group migration allows you export a disk group so that you can import
the disk group to a different storage array. You can also export a disk group so
that you can store the data offline.
NOTE: During the export process (before the disk group is imported) you will lose
access to the data on the exported disk group.
NOTE: You must export a disk group before you move the disk group or import the
disk group.
Export Disk Group
The export disk group operation prepares the physical disks in the disk group
for removal. You can remove the physical disks for offline storage, or you can
import the disk group to a different storage array. After you complete the
export disk group operation, all of the physical disks are offline. Any
associated virtual disks or free capacity nodes are no longer shown in the MD
Storage Manager Software.
Non-Exportable Components
You must remove or clear any non-exportable settings before you can
complete the export disk group procedure. Remove or clear the following
settings:
• Persistent reservations
• Host-to-virtual disk mappings
• Virtual disk copy pairs
• Snapshot virtual disks and snapshot repository virtual disks
• Remote mirror pairs
• Mirror repositories