Hot-Swap Disk Drive Support; Auto Declare Hot-Spare - Areca ARC-1880 Series User Manual

located on the failed drive is reconstructed on the hot spare.
Dedicated hot spare is assigned to serve one specified RAID set.
Global hot spare is assigned to serve all RAID set on the RAID
controller. Dedicated hot spare has higher priority than the global
hot spare. For this feature to work properly, the hot spare must
have at least the same capacity as the drive it replaces. The host
spare function only works with RAID level 1, 1E, 3, 5, 6, 10, 30,
50, or 60 volume set.
The "Create Hot Spare" option gives you the ability to define a
global/dedicated hot spare disk drive. To effectively use the hot
spare feature, you must always maintain at least one drive that is
marked as a global hot spare.
Important
The hot spare must have at least the same capacity as the
drive it replaces.

Hot-Swap Disk Drive Support

•
The RAID controller chip includes a protection circuit that sup-
ports the replacement of SAS/SATA hard disk drives without hav-
ing to shut down or reboot the system. A removable hard drive
tray can deliver "hot swappable" fault-tolerant RAID solutions.
This feature provides advanced fault tolerant RAID protection and
"online" drive replacement.

Auto Declare Hot-Spare

•
If a disk drive is brought online into a system operating in de-
graded mode, the RAID controllers will automatically declare the
new disk as a spare and begin rebuilding the degraded volume.
The Auto Declare Hot-Spare function requires that the smallest
drive contained within the volume set in which the failure oc-
curred.
In the normal status, the newly installed drive will be reconfig-
ured an online free disk. But, the newly-installed drive is auto-
matically assigned as a hot spare if any hot spare disk was used
:
APPENDIX
185