DELL MD3220 사용자 설명서

Configuration: Disk Groups and Virtual Disks

Disk group migration allows to 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.

During the export process (before the disk group is imported) you lose 

access to the data on the exported disk group.

You must export a disk group before you move the disk group or import the 

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 MDSM.

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 

On the source storage array:

1 Save the storage array configuration. 
2 Stop all I/O, and unmount or disconnect the file systems on the virtual 

disks in the disk group. 

3 Back up the data on the virtual disks in the disk group. 

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