HighPoint RocketRAID 3510 - Manual (Page 29)

RocketRAID 3xxx BIOS Utility
3 - Adding/Remove Spare Disks
This command is used to assign a hard disk to act as a Spare Disk.
Spare Disks are used to automatically rebuild Redundant RAID arrays (RAID 1, 5, 6, 10,
50) in the case of disk failure. To set a hard disk to act as a Spare Disk, use the
↑ ↓ arrow
keys to select a disk, and press ENTER.
To remove the Spare Disk setting from a hard disk, highlight the spare disk, and press
ENTER.
Generally, single disks are designated to act as spares (disks that are not configured
into RAID arrays).
However, in some instances, disks that are members of RAID arrays may also be
designated to act as a spare. If the disks in question are part of a RAID array that did
not utilize the full available capacity at the time of creation, these disks may be used
as spares.
For example: a RAID 0 array was created between two 200GB hard disks, but only
200GB of space (out of a grand total of 400GB), was assigned to that array. In this
example, 200GB of disk space remains unallocated. This unallocated space would
allow these disks to be set as spares for a separate redundant array that falls into the
same capacity range (200GB).
Note: Spare property will disappear when Max Available Capacity is low than 1G
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