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Before you consider replacing a hard disk drive, be sure you understand the following
points:
Do not attempt to replace an HDD unless you are instructed to do so by Hitachi.
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Failed hard disks are hot-swappable, so a failed hard disk can be replaced without
■
shutting down the server. However, there are serious risks in trying to swap a drive
that is not failed.
Do not assume that because the red LED is illuminated that a drive is faulty. Under a
■
RAID rebuild/recovery, the red LED would be illuminated. If the drive is failed and
needs replacing, you can remove it from the server.
Do not replace a drive that has not actually failed. If the disk shows signs of failure,
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shut down the server before replacing the drive and restarting the server.
There should be no reason to pull out a hard drive while it is in a known good
■
configuration, and doing so can potentially lead to data corruption.
Unless you are certain the hard disk has failed, perform a disk recovery.
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Disk redundancy is unsupported while the disk is removed from the server.
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Hard disks can fail for a number of reasons, including corrupt sectors or erroneous
blocks of data. Typically, the RAID controller handles these types of errors and they do
not cause the server to fail.
More serious errors may cause a disk failure, causing one or both hard disks to fall out of
the RAID. Should one partition of a disk fail, attempt a disk recovery. If a partition fails
repeatedly, replace the hard disk. If all the partitions fall out of RAID, replace the failed
drive.
Replacing a hard disk drive
The server contains two hard disk drives (HDDs). The HDDs are field replaceable when
directed by Hitachi customer support.
Before you begin
Obtain the new HDD or HDDs.
Before you replace a hard disk drive, be sure you understand the following points:
Do not attempt to replace an HDD unless you are instructed to do so by Hitachi
■
customer support.
Failed hard disks are hot-swappable, so a failed hard disk can be replaced without
■
shutting down the server. However, there are serious risks in trying to swap a drive
that is not failed.
Disk redundancy is unsupported while the disk is removed from the server.
■
Hitachi NAS Platform 3080 and 3090 G2 Hardware Reference
Chapter 6: Replacing server components
Replacing a hard disk drive
60
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