Panasonic WJ-HD716/1000 Installation Guide - Page 146

Replacement of a faulty hard disk drive in the RAID mode

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Replacement of a faulty hard disk drive in the RAID mode In the RAID 5 mode, it is possible to read data on the other hard disk drives and recover data even when a single hard disk drive becomes faulty (1 down). In the RAID 6 mode, it is possible to read data on the other hard disk drives and recover data even when 2 hard disk drives become faulty (2 down). Note: • Replace the faulty disk immediately and recover data when a single hard disk drive becomes faulty (1 down) even in the RAID 6 mode. Important: • Do not turn off the power in the process of recovery. It may result in recovery failure. Step 1 Remove the hard disk drive whose HDD access indicator is lit or blinking red. Refer to page 53 for how to remove the HDD unit. Step 2 Install a new HDD unit to the slot from which the faulty disk is removed by referring the disk slot number. Refer to page 52 for how to install the HDD unit and change the faulty disk. Step 3 Recognition process and error recovery of the hard disk drive will automatically start. When the error recovery starts, the HDD access indicator will light orange and red alternately. (It may appear that the indicator is lighting orange when recovery is being processed at high speed.) Step 4 When the error recovery is complete, the HDD access indicator will go off or light green. When 2 hard disk drives become faulty (2 down), the data recovery of the second faulty disk will start after completing the data recovery of the first faulty disk. 146

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146
Replacement of a faulty hard disk drive in the RAID mode
In the RAID 5 mode, it is possible to read data on the other hard disk drives and recover data even when a single hard disk drive
becomes faulty (1 down).
In the RAID 6 mode, it is possible to read data on the other hard disk drives and recover data even when 2 hard disk drives
become faulty (2 down).
Note:
• Replace the faulty disk immediately and recover data when a single hard disk drive becomes faulty (1 down) even in the RAID
6 mode.
Important:
• Do not turn off the power in the process of recovery. It may result in recovery failure.
Step 1
Remove the hard disk drive whose HDD access indicator is
lit or blinking red. Refer to page 53 for how to remove the
HDD unit.
Step 2
Install a new HDD unit to the slot from which the faulty disk
is removed by referring the disk slot number.
Refer to page 52 for how to install the HDD unit and change
the faulty disk.
Step 3
Recognition process and error recovery of the hard disk
drive will automatically start.
When the error recovery starts, the HDD access indicator will
light orange and red alternately.
(It may appear that the indicator is lighting orange when
recovery is being processed at high speed.)
Step 4
When the error recovery is complete, the HDD access indi-
cator will go off or light green.
When 2 hard disk drives become faulty (2 down), the data
recovery of the second faulty disk will start after completing
the data recovery of the first faulty disk.