IBM ServeRAID-8 Series, Лучшие практики и информация по обслуживанию

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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
Controller-based
media test for a
single drive This option is a read-only test, except when disk errors are detected
and corrected. The controller prompts you to repair any errors that
are found. If all errors are corrected, the drive is considered healthy.
Generally, this action is a thorough and nondestructive test, but
unrecoverable errors might cause data loss.
1. Turn on the system and press Ctrl+A when you are prompted to
access the Adaptec RAID Configuration Utility (ARC).
2. From the ARC menu, select Disk Utilities .
3. Select the hard disk drive.
4. Select Verify Disk Media .
Server is
offline. High; replace
the hard disk
drive if it
fails.
CLI tool-based
low-level format
for a single
drive The target drive must be in a Ready state for you to take this action
within an operating system because it erases all data on the selected
drive. The disk is reconditioned to a healthy state. This operation
performs read and write operations to the drive and is a good option
for testing and recovering a drive that is marked Defunct.
arcconf task start n device ID_number clear
Within the
operating
system High; replace
the hard disk
drive if it
fails.
CLI tool-based
media test for a
single drive The target drive must be in a Ready state for you to take this action
within an operating system. This option is a read-only test except
when disk errors are detected and corrected. The controller prompts
you to repair any errors that are found. If no errors occur or all errors
are corrected, the drive is considered healthy. Unrecoverable errors
might cause data loss.
arcconf task start n device ID_number verify
Within the
operating
system High; replace
the hard disk
drive if it
fails.
Update hard
disk drive
firmware This action updates the firmware on the drives; however, the results
vary depending on the updates that are stated in the change history.
Hard disk drive firmware updates are downloadable from the IBM
Web site.
Firmware updates can be applied to drives that are already marked
Defunct. In some cases, this might correct issues with the drive, and
the drive can be returned to service.
Server is
offline. Varies
according to
the change
history
Begin a manual
logical drive
synchronization If an array is not critical, you can verify the drive media by using a
logical drive synchronization. This is effectively the same thing as a
controller-based Verify Disk Media test for all the drives in the array,
but it can correct unrecoverable media errors. This can be done while
the logical drive is online and in operation and is a good option for
routine preventive maintenance. There will be some performance
degradation, depending on the priority that is set. You can start
synchronizations by using the following tools:
v IBM ServeRAID Support CD
v ServeRAID Manager application (in the operating system)
v Typing the following command:
arcconf task start n logicaldrive logical_drive_number
synchronization
Notes:
1. To retrieve the logical drive number, use the arcconf getconfig
command.
2. If multiple logical drives are associated with the same array of
disks, you must perform a synchronization on each logical drive.
Within the
operating
system High
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ServeRAID-8 Series: Best Practices and Maintenance Information