User manual
Fibre to SAS/SATA II RAID Subsystem
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User Manual
1.5.2 Hot-Swap Disk Drive Support
The RAID subsystem has built-in protection circuit to support the replacement of
SATA II hard disk drives without having to shut down or reboot the system. The
removable hard drive tray can deliver “hot swappable” fault-tolerant RAID solution at a
price much less than the cost of conventional SCSI hard disk RAID subsystems. This
feature is provided in the RAID subsystem for advance fault tolerant RAID protection and
“online” drive replacement.
1.5.3 Hot-Swap Disk Rebuild
The Hot-Swap feature can be used to rebuild Raid Sets with data redundancy such as
RAID level 1, 0+1, 3, 5, 6, 30, 50 and 60. If a hot spare is not available, the failed
disk drive must be replaced with a new disk drive so that the data on the failed drive
can be rebuilt. If a hot spare is available, the rebuild starts automatically when a drive
fails. The RAID subsystem automatically and transparently rebuilds failed drives in the
background with user-definable rebuild rates. The RAID subsystem will automatically
continue the rebuild process if the subsystem is shut down or powered off abnormally
during a reconstruction process.