VERITAS Volume Manager 3.5 User's Guide - VERITAS Enterprise Administrator (June 2002)

Moving, Splitting, and Joining Subdisks
114 VERITAS Volume Manager User’s Guide - VEA
5. If you selected the manual assignment of the destination disk, an extra screen
appears. Select the hard disk you wish to move the subdisk to and click Next.
Note VxVM automatically checks the state of the data before beginning the subdisk
move. If the data is degraded, the subdisk can still be moved. After moving, you
will need to reactivate the disk to clear the degraded setting.
6. The final screen of the Subdisk Move wizard appears. Click Finish to complete the
command.
After you have provided all necessary information in the dialog box, click OK.
Splitting a Subdisk
The Subdisk Split command allows you to split a subdisk. After the subdisk is split, the
resulting two subdisks will reside on the same section of the same disk. You can then use
the Subdisk Move command to move one or both subdisks to other disks. You may want
to split and move a subdisk to makethe bestuse ofyour diskspace. A split subdisk can be
joined back together again with the Subdisk Join command.
You canuse the ObjectViewwindow (Disk Groups > Object View)or theVolume toDisk
Mapping window (Disk Groups > Disk/Volume Map) to view the subdisks in a disk
group. You can use the Volume Layout Details window (Volumes > Show Layout) to
view subdisks in a specific volume.
▼ To split a subdisk into multiple subdisks
1. Identify the subdisk that you want to split and display it in the right pane.
2. Right-click on the subdisk you want to split to bring up its context menu.
3. Select Split from the context menu.
Notes:
- Subdisks are typically moved to reorganize disk space.
- The disk space occupied by the original subdisk is returned to the free space pool.
- A subdisk in a mirrored, striped, or RAID-5 volume should not be moved to a disk that
already contains a copy or part of that volume.
- If the Subdisk Move task fails and leaves some unused subdisks (that is, subdisks that
arenot associatedwith avolume) onthe system,you canuse the
Subdisk Remove task
to free the space occupied by the unused subdisks.