IBM ServeRAID-8k User Manual

Table 3. ServeRAID hard disk drive maintenance and recovery methods and tools (continued)
Action Method and tool used
Operation
state of the
system
Confidence
to fix
Rebuilding a
defunct drive
If a drive is marked Defunct and is known to be good or is recently
updated, you can return the disk to service by starting a rebuild
operation to the drive. The disk is not tested but is actively monitored
by the controller for errors as normal operation.
v The drive can be initialized and then inserted as a replacement
disk.
v Insert the drive and designate the disk as a hot-spare drive. A
critical drive automatically starts a rebuild operation if the size
requirement is met.
Within the
operating
system
Moderate
Initializing a
drive
Initializing a drive removes any existing configuration information but
does not test the drive itself. Initialization writes to a small section of
the drive, so a drive must be healthy enough to complete the write
operations. Initializing a drive is not a thorough diagnostic test of the
health of a hard disk drive; however, it does indicate that the drive is
functional.
If the drive fails initialization, check the connections and retry. If the
drive does not complete initialization, replace it. This process
irrevocably removes array and logical drive information from the disk.
You can initialize drives by using the following tools:
v The Array Configuration Utility (ACU) (Turn on the system and
press Ctrl+A when you are prompted to access the Adaptec RAID
Configuration Utility (ARC). From the ARC menu, select Array
Configuration Utility.)
v IBM ServeRAID Support CD
v ServeRAID Manager application (in the OS)
v Typing the following command:
arcconf task start n device ID_number initialize
Server is
Offline or
within the
operating
system
Low
Any drive that undergoes a reconditioning by a low-level format or Verify Disk Media
should be observed for normal operation for a period of time. In large environments,
this might be difficult to implement. A practical method is to flag each reconditioned
drive with a small label or colored sticker. If the drive continues to have problems, it
is easy to tell that the disk has already undergone the reconditioning process and
updates. This way, if a follow-up service call is necessary, the service technician
and administrators can determine the actions that are needed to solve the problem.
Chapter 1. ServeRAID-8 series best practices and maintenance information 29

IBM ServeRAID-8k Specifications

General

Brand	IBM
Model	ServeRAID-8k
Category	Controller
Language	English