8.4.2 Recovery from a failure in one HDD
Never remove the screws on an HDD while the power to the unit is on. Never
hot-swap HDDs. If you do either of these, failure of the equipment or the drive
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
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.
Wear cotton gloves when replacing an HDD in order to prevent failure caused
by static electricity. If you do not, the data stored on the HDD may get
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.
To recover from a failure in one HDD, follow the procedure below.
For information about how to recover using a backup HDD, see "8.5.2 Recovery using a
 Back up the data.
 Terminate all running applications.
 Double-click the hardware status icon on the notification area of the taskbar.
The Hardware status window appears. In the Hardware status window, check which
HDD has failed.