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10. RAID1
10.5 Preventive Maintenance
10.5.1 Creating a Backup Drive
● Wear cotton gloves when replacing a drive in order to prevent failure caused by
static electricity. If you do not, the data stored on the drive 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 drive may be lost.
● If you want to use an SSD as a backup drive, you must update the backup within one
year. If the non-energized time exceeds one year, data might be missing or lost.
● If a drive failure prediction icon is displayed as the hardware status in the notification
area of the taskbar, do not use the drive as a backup drive. Failure to heed this instruction
might result in data becoming corrupted or lost.
RAID1 is more reliable compared to a system with a conventional configuration.
Nevertheless, the data stored on the drives may be lost due to human error or other reasons.
If you create a backup drive, you can recover from such data loss. (Note that you can only
restore to the point of backup.) We recommend that you prepare a brand-new drive or
another properly prepared drive for backup and use it to back up the data periodically. Follow
the procedure below, and create a backup drive.
< NOTE >
・When reusing a used backup drive as the replacement drive, the used backup
drive must be initialized. (For details, see "10.6.7 Drive Initialization Function").
・When a replacement drive is installed, its capacity must be the same as the
capacity of the drive bay1.
・The following is the procedure for the drive mounted in drive bay 1. When you
make a backup drive from the drive mounted to drive bay 2, interpret drive bay 1
as drive bay 2.
1. Shut down the OS. Unplug the plug of the power cord from the outlet, and wait for at least
one minute. Then replace the drive mounted in drive bay 1 with a replacement drive.
(See "6.3.6 Installing and removing an HDD／SSD".)
2. Store the removed drive in a safety place as a backup drive.
3. Turn on the equipment. RAID1 will automatically detect the new drive and start rebuilding.
Make sure that the HDD1 or SSD1 status lamp is blinking.
4. The OS is active during rebuilding. The time required for rebuilding depends on the
applications executed during rebuilding. If you do not want to start the OS, use the software
RAID utility to perform rebuilding.
5. Rebuilding is complete when the HDD1 or SSD1 status lamp turns off. Check the hardware
status window to confirm that both the drives are normal.
NOTICE
10-18
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