Hot Spares

A hot spare pool can contain 0 to n hot spares. A hot spare pool can be associated with multiple submirrors and RAID5 metadevices. You can define one hot spare pool with a variety of different size slices, and associate it with all the submirrors or RAID 5 metadevices. DiskSuite knows how to use the correctly sized hot spare when necessary.

Place hot spares in the same hot spare pool across controllers, to preserve lines of failure. In this respect, follow the same guidelines as you would for creating submirrors.