Disk Group Migration

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.

NOTE: During the export process (before the disk group is imported) you 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 MDSM.

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

Exporting a Disk Group

On the source storage array:

1Save the storage array configuration.

2Stop all I/O, and unmount or disconnect the file systems on the virtual disks in the disk group.

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

Configuration: Disk Groups and Virtual Disks

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