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Configuring a system for hot-relocation

By designating spare disks and making free space on disks available for use by hot relocation, you can control how disk space is used for relocating subdisks in the event of a disk failure. If the combined free space and space on spare disks is not sufficient or does not meet the redundancy constraints, the subdisks are not relocated.

Find out which disks are spares or are excluded from hot-relocation.

See "Displaying spare disk information" on page 389.

You can prepare for hot-relocation by designating one or more disks per disk group as hot-relocation spares.

See "Marking a disk as a hot-relocation spare" on page 391.

If required, you can remove a disk from use as a hot-relocation spare

See "Removing a disk from use as a hot-relocation spare" on page 392..

If no spares are available at the time of a failure or if there is not enough space on the spares, free space on disks in the same disk group as where the failure occurred is automatically used, unless it has been excluded from hot-relocation use.

See "Excluding a disk from hot-relocation use" on page 392.

See "Making a disk available for hot-relocation use" on page 393..

Depending on the locations of the relocated subdisks, you can choose to move them elsewhere after hot-relocation occurs.

See "Configuring hot-relocation to use only spare disks" on page 394.

After a successful relocation, remove and replace the failed disk.

See "Removing and replacing disks" on page 125.