2.12 Mark a disk as a spare for a disk group
This is used to reserve the disk as an automatic replacement disk ( hot-relocation) in case of another disk in the disk group fails. Hot-relocation relocates redundant subdisks to other disks and restores the affected volume manager objects and data. If a disk has already been designated as a spare in the disk group, the subdisks from the failed disk are relocated to the spare disk. Otherwise, any suitable free space in the disk group is used.

Select menu item 12 (Mark a disk as a spare for a disk group) from the vxdiskadm main menu.

Mark a disk as a spare for a disk group
Menu: VolumeManager/Disk/MarkSpareDisk

Use this operation to mark a disk as a spare for a disk group.
This operation takes, as input, a disk name. This is the same name
that you gave to the disk when you added the disk to the disk group.

Enter disk name [,list,q,?] disk01
Marking of disk01 in rootdg as a spare disk is complete.

Mark another disk as a spare? [y,n,q,?] (default: n)

Any VM disk in this disk group can now use this disk as a spare in the event of a failure. If a disk fails, hot-relocation should automatically occur .The failed disk needs to be replaced.

Nextpage – Turn off the spare flag on a disk

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