Hot-Swap Disk Drive Support; Hot-Swap Disk Rebuild - Sans Digital Mobileraid MR8X Detailed User's Manual

SAS-to-SATA II RAID Subsystem

1.5.4.2 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.

1.5.4.3 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 and 6. 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.
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Installation and Configuration Manual