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Cluster : Storage > Disks : Understanding disks : What disks can be used as hot spares
What disks can be used as hot spares
A disk must conform to certain criteria to be used as a hot spare for a particular data disk.
For a disk to be used as a hot spare for another disk, it must conform to the following criteria:
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It must be either an exact match for the disk it is replacing or an appropriate alternative.
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The spare must be owned by the same system as the disk it is replacing.

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