User manual
HARDWARE INSTALLATION
41
2.3.1 Hot-plug Drive Replacement
The RAID controller supports the ability of performing a hot-swap
drive replacement without powering down the system. A disk can
be disconnected, removed, or replaced with a different disk with-
out taking the system off-line. The RAID rebuilding will be pro-
cessed automatically in the background. When a disk is hot swap,
the RAID controller may no longer be fault tolerant. Fault toler-
ance will be lost until the hot swap drive is subsequently replaced
and the rebuild operation is completed.
2.3.2 Recognizing a Drive Failure
A drive failure can be identied in one of the following ways:
1. An error status message lists failed drives in the event log.
2. A fault LED illuminates on the front of RAID subsystem if failed
drives are inside.
2.3.3 Replacing a Failed Drive
With RAID subsystem drive tray, you can replace a defective
physical drive while your computer is still operating. When a new
drive has been installed, data reconstruction will be automatically
started to rebuild the contents of the disk drive.
Note:
The capacity of the replacement drives must be at least
as large as the capacity of the other drives in the raid set.
Drives of insufcient capacity will be failed immediately by
the RAID adapter without starting the Automatic Data Re-
build.