Datoptic ARC-1680 Series Manual de usuario descargar pdf (Pagina 171)

171

APPENDIX

automatically take its place and he data previously located on the

failed drive is reconstructed on the Global Hot Spare.

For this feature to work properly, the global hot spare must have

at least the same capacity as the drive it replaces. Global Hot

Spares only work with RAID level 1, 10(1E), 3, 5, 6, 30, 50, or 60

volume set. You can congure up to three global hot spares with

SAS RAID controller.

The “Create Hot Spare” option gives you the ability to dene

a global hot spare disk drive. To effectively use the global hot

spare feature, you must always maintain at least one drive that is

marked as a global spare.

Important:

The hot spare must have at least the same capacity as the

drive it replaces.

• Hot-Swap Disk Drive Support

The SAS RAID controller chip includes a protection circuit that

supports the replacement of SAS/SATA hard disk drives without

having to shut down or reboot the system. A removable hard

drive tray can deliver “hot swappable” fault-tolerant RAID solu-

tions. This feature provides advanced fault tolerant RAID protec-

tion and “online” drive replacement.

• Auto Declare Hot-Spare

If a disk drive is brought online into a system operating in de-

graded mode, the SAS RAID controllers will automatically de-

clare 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

occurred.

In the normal status, the newly installed drive will be recong-

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

to rebuild and without new installed drive replaced it. In this

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Datoptic ARC-1680 Series Manual de usuario Pagina 171