4.3.2 Configure - New Hot Spare

A Hot Spare is a disk that is held in reserve by RAIDZONE, to be used as a replacement for a failed disk that is part of a fault tolerant set. Designate a disk as a Hot Spare as follows:

1. Use the mouse to select the disk you want to designate as a Hot Spare.
2. From the RAIDZONE menu select Configure, then select the New Hot Spare submenu.
3. The RAIDZONEAdministrator program will then ask for confirmation.
4. A dialog box will then ask if you want the hot spare to be automatically swapped or not.
5. A system reboot is required to complete the operation.

A Hot Spare disk is hidden from the operating system until it is called upon. The function of a Hot Spare disk is to replace a failed disk on the fly, without requiring a system shutdown or the interruption of disk I/O. The Hot Spare can be configured to be automatically swapped in for a failed disk and rebuilt without any user intervention (see Step 4 above).

The following restrictions apply to exchanging a Hot Spare for a failed disk:

1. The failed disk must either be a member of a disk level fault tolerant set, or contain only fault tolerant partitions.
2. The failed disk must be the only failed member in its fault tolerant set(s).
3. The disk capacity (in MB or GB) of the Hot Spare must be the same as the disk that failed (for disk level mirroring), or large enough to contain all the failed disk's partitions (for partition level fault tolerant sets).

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