Adaptec 7220ss User Guide
4-1
4
Managing Spares
In This Chapter
DuraStor RAID controllers automatically reconstruct redundant
(fault-tolerant) arrays (RAID 3, RAID 4, RAID 5, RAID 50, and
mirrored) if an array becomes critical and a proper-size spare disk
drive is available. An array becomes critical when one member
disk drive fails.
(fault-tolerant) arrays (RAID 3, RAID 4, RAID 5, RAID 50, and
mirrored) if an array becomes critical and a proper-size spare disk
drive is available. An array becomes critical when one member
disk drive fails.
You can set up two types of spare disk drives:
■
Dedicated
—Available disk drive that is assigned to a specific
array (see
).
■
Pool
—Available disk drive that is assigned to the spare pool,
which can provide a spare for any failed disk drive in any
redundant array. In active-active mode, pool spares are available
to both controllers. If a disk drive in an array on either controller
fails, the controller can use a pool spare to reconstruct the array
(see
redundant array. In active-active mode, pool spares are available
to both controllers. If a disk drive in an array on either controller
fails, the controller can use a pool spare to reconstruct the array
(see
).
You can also enable the Dynamic Spares function. (See
.)