HP Veritas Volume Manager 5.0 -UX 11i v3 Mirroring all volumes, Mirroring volumes on a VM disk

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Administering volumes

Adding a mirror to a volume

Mirroring all volumes

To mirror all volumes in a disk group to available disk space, use the following command:

#/etc/vx/bin/vxmirror -g diskgroup -a

To configure VxVM to create mirrored volumes by default, use the following command:

#/etc/vx/bin/vxmirror -d yes

If you make this change, you can still make unmirrored volumes by specifying nmirror=1 as an attribute to the vxassist command. For example, to create an unmirrored 20-gigabyte volume named nomirror in the disk group, mydg, use the following command:

#vxassist -g mydg make nomirror 20g nmirror=1

Mirroring volumes on a VM disk

Mirroring volumes on a VM disk gives you one or more copies of your volumes in another disk location. By creating mirror copies of your volumes, you protect your system against loss of data in case of a disk failure.

Note: This task only mirrors concatenated volumes. Volumes that are already mirrored or that contain subdisks that reside on multiple disks are ignored.

To mirror volumes on a disk

1Make sure that the target disk has an equal or greater amount of space as the originating disk.

2Select menu item 5 (Mirror volumes on a disk) from the vxdiskadm main menu.

3At the following prompt, enter the disk name of the disk that you wish to mirror:

Mirror volumes on a disk

Menu: VolumeManager/Disk/Mirror

This operation can be used to mirror volumes on a disk. These volumes can be mirrored onto another disk or onto any available disk space. Volumes will not be mirrored if they are already mirrored. Also, volumes that are comprised of more than one subdisk will not be mirrored.

Enter disk name [<disk>,list,q,?] mydg02

4At the following prompt, enter the target disk name (this disk must be the same size or larger than the originating disk):