Solaris ZFS Administration Guide

Hot Spares for ZFS Storage Pool Devices

Solaris Express Community Release, build 42: The ZFS hot spares feature enables you to identify disks that could be used to replace a failed or faulted device in one or more storage pools. Designating a device as a hot spare means that if an active device in the pool fails, the hot spare automatically replaces the failed device. Or, you can manually replace a device in a storage pool with a hot spare.

For more information, see Designating Hot Spares in Your Storage Pool and zpool(1M).