Preventive Maintenance; Creating A Backup Hdd - Hitachi HF-W2000 58 Instruction Manual

10.5 Preventive Maintenance

10.5.1 Creating a backup HDD

● Wear cotton gloves when replacing an HDD to prevent problems caused by static electricity.
Not doing so might result in corruption of the data stored on the HDD.
● Verify correct procedures before starting work. Failure to follow the correct procedures might
result in data stored on an HDD being lost.
RAID1 is more reliable compared to a system with a conventional configuration. Even so, the data stored on the
HDDs might be lost due to human error or other reasons.
If you create a backup HDD, you can recover from such data losses.
(Note that you can only restore to the point of the backup.) We recommend that you prepare a brand-new HDD or
another properly prepared HDD for the backup, and use it to back up data periodically. To create a backup HDD,
perform the following procedure:
NOTE
• If you want to reuse a previously used backup HDD as a replacement HDD, you must apply "Initialize Drives"
to the used backup HDD. (See 10.6.7 Drive initialization feature.)
• When a replacement HDD is installed, its capacity must be the same as the capacity of the drive in backup HDD.
• The following is the procedure for the HDD installed in drive bay 1. If you are making a backup HDD from the
HDD installed in drive bay 2, interpret "drive bay 1" as "drive bay 2".
1. Shutdown the OS and unplug the power cord, and then wait for at least one minute. Then, replace the HDD
installed in drive bay 1 with a replacement HDD.
(See 6.3.6 Installing and removing an HDD or SSD.)
2. Store the removed HDD in a safe place as a backup HDD.
3. Turn on power to the equipment. RAID1 automatically detects that a brand-new HDD is installed and starts the
rebuilding process. Verify that the DRIVE1 status lamp is blinking.
4. The OS starts while the rebuilding process continues. The time required for the rebuilding process depends on
what applications are executed during this period.
If you do not want to start the OS, rebuild the system by using the software RAID utility.
5. When the DRIVE1 status lamp turns off, the rebuilding process is complete. In the Hardware status window,
verify that the status of both HDDs is normal.
NOTICE
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10. SOFTWARE RAID1