Hitachi HF-W7500, Instruction Manual

Page: 304 / 319

10. RAID1
10-7
10.4.2 Recovery from a failure in one HDD
NOTICE

Never remove an HDD when the HDD status lamp of the HDD is OFF. If you do,
the data stored in the HDD gets corrupted.

Wear cotton gloves when replacing an HDD in order to prevent problems caused
by static electricity. If you do not, the data stored on the HDD may get corrupted.

Make sure you check the correct procedure before you start the work. If you do not
follow the correct procedure, the data stored on the HDD may be lost.

As a replacement HDD, do not use an HDD previously used. If you do, this
equipment may not operate properly or the data on the HDDs may be lost because
of configuration information mismatches or other reasons.

Mount an HDD securely. Loose contacts and missing screws may result in a
failure.

Do not subject an HDD you are mounting and the already mounted HDDs to
shock while replacing an HDD. Otherwise, failure of the equipment may result.

Until the rebuild is complete, avoid shutting off the power for this equipment or
attaching and detaching HDDs. Otherwise, the data on the HDDs may be lost or a
failure may result.
To recover from a single-system HDD failure, perform the procedure below.
For recovery from the backup HDD, see “10.5.2 Recovery Using a Backup HDD”.