Panasonic WJ-HDE400/3000T3 Installation Guide - Page 30

Data recovery in the RAID 5/RAID 6 mode

Page 30 highlights

■ Data recovery (in the RAID 5/RAID 6 mode) If a hard disk drive failure occurs in the RAID 5 or RAID 6 mode, the error display will appear as shown in the following table. 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 (1DOWN). 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 (2DOWN). When the hard disk drive becomes faulty (down), replace it immediately. Contact your dealer about purchasing/replacing the hard disk drives. Important: • In the RAID 5 mode: If 2 or more hard disk drives become faulty (2DOWN) or when another hard disk drive becomes faulty during the data recovery, it is impossible to recover data. • In the RAID 6 mode: If 3 or more hard disk drives become faulty (3DOWN) or when another hard disk drive becomes faulty during the data recovery, it is impossible to recover data. Source Extension unit On LCD HDD access indicator Display/indication during hard disk drive error Display/indication during data recovery RAID 1DOWN: A single hard disk drive is faulty. RAID 2DOWN: 2 hard disk drives are faulty. RAID 3DOWN (only in the RAID 6 mode): 3 hard disk drives are faulty. During preparation of data recovery: [RCV START WAIT] During process of data recovery (writing data): [RECOVERING XX%] (Indicates only on extension unit) Lights red: Indicates that the respective hard disk drive is faulty (which can be recovered by replacing the hard disk drive). • In the RAID 5 mode, it indicates that the hard disk drive is the first faulty drive. • In the RAID 6 mode, it indicates that the hard disk drives are the first and second faulty drives. Blinks red: Indicates that the respective hard disk drive is faulty (which cannot be recovered even by replacing the hard disk drive). • In the RAID 5 mode, it indicates that the hard disk drive is the second faulty drive. • In the RAID 6 mode, it indicates that the hard disk drive is the third faulty drive. Lights red and orange alternately: Indicates that the hard disk drive is currently being recovered in the RAID 5/RAID 6 mode. Recorder Error log Refer to the manuals provided with the recorder for further information. • RAID 1DOWN Recorder: MAIN RAIDm 1 DOWN Extension unit: EXTu RAIDm 1 DOWN • RAID 2DOWN Recorder: MAIN RAIDm 2 DOWN Extension unit: EXTu RAIDm 2 DOWN • RAID 3DOWN Recorder: MAIN RAID6 3 DOWN Extension unit: EXTu RAID6 3 DOWN m: Operational mode u: Unit number RAID recovery failure: • Recorder: MAIN RAIDm RECOVERY FAILURE • Extension unit: EXTu RAIDm RECOVERY FAILURE m: Operational mode u: Unit number 30

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Data recovery (in the RAID 5/RAID 6 mode)
If a hard disk drive failure occurs in the RAID 5 or RAID 6 mode, the error display will appear as shown in the following table.
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 (1DOWN).
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 (2DOWN).
When the hard disk drive becomes faulty (down), replace it immediately.
Contact your dealer about purchasing/replacing the hard disk drives.
Important:
• In the RAID 5 mode:
If 2 or more hard disk drives become faulty (2DOWN) or when another hard disk drive becomes faulty during the data recovery, it
is impossible to recover data.
• In the RAID 6 mode:
If 3 or more hard disk drives become faulty (3DOWN) or when another hard disk drive becomes faulty during the data recovery, it
is impossible to recover data.
Source
Display/indication during hard disk drive error
Display/indication during data
recovery
Extension unit
On LCD
RAID 1DOWN:
A single hard disk drive is faulty.
RAID 2DOWN:
2 hard disk drives are faulty.
RAID 3DOWN (only in the RAID 6 mode):
3 hard disk drives are faulty.
During preparation of data recovery:
[RCV START WAIT]
During process of data recovery
(writing data):
[RECOVERING XX%]
(Indicates only on extension unit)
HDD access indicator
Lights red:
Indicates that the respective hard disk drive is faulty (which
can be recovered by replacing the hard disk drive).
• In the RAID 5 mode, it indicates that the hard disk
drive is the first faulty drive.
• In the RAID 6 mode, it indicates that the hard disk
drives are the first and second faulty drives.
Blinks red:
Indicates that the respective hard disk drive is faulty (which
cannot be recovered even by replacing the hard disk
drive).
• In the RAID 5 mode, it indicates that the hard disk
drive is the second faulty drive.
• In the RAID 6 mode, it indicates that the hard disk
drive is the third faulty drive.
Lights red and orange alternately:
Indicates that the hard disk drive is
currently being recovered in the RAID
5/RAID 6 mode.
Recorder
Error log
Refer to the manuals pro-
vided with the recorder for
further information.
• RAID 1DOWN
Recorder: MAIN RAIDm 1 DOWN
Extension unit: EXTu RAIDm 1 DOWN
• RAID 2DOWN
Recorder: MAIN RAIDm 2 DOWN
Extension unit: EXTu RAIDm 2 DOWN
• RAID 3DOWN
Recorder: MAIN RAID6 3 DOWN
Extension unit: EXTu RAID6 3 DOWN
m: Operational mode
u: Unit number
RAID recovery failure:
• Recorder:
MAIN RAIDm RECOVERY FAILURE
• Extension unit:
EXTu RAIDm RECOVERY FAILURE
m: Operational mode
u: Unit number