Data Recovery (In The Raid 5/Raid 6 Mode) - Panasonic WJ-HDE400 Installation Manual

■ 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
Recorder
Error log
Refer to the manuals pro-
vided with the recorder for
further information.
30
Display/indication during hard disk drive error
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.
Lights red:
Indicates that the respective hard disk drive is faulty (which
can be recovered by replacing the hard disk drive).
• I n the RAID 5 mode, it indicates that the hard disk
drive is the first faulty drive.
• I n 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).
• I n the RAID 5 mode, it indicates that the hard disk
drive is the second faulty drive.
• I n the RAID 6 mode, it indicates that the hard disk
drive is the third faulty drive.
• R AID 1DOWN
Recorder: MAIN RAIDm 1 DOWN
Extension unit: EXTu RAIDm 1 DOWN
• R AID 2DOWN
Recorder: MAIN RAIDm 2 DOWN
Extension unit: EXTu RAIDm 2 DOWN
• R AID 3DOWN
Recorder: MAIN RAID6 3 DOWN
Extension unit: EXTu RAID6 3 DOWN
m: Operational mode
u: Unit number
Display/indication during data
recovery
During preparation of data recovery:
[RCV START WAIT]
During process of data recovery
(writing data):
[RECOVERING XX%]
(Indicates only on extension unit)
Lights red and orange alternately:
Indicates that the hard disk drive is
currently being recovered in the RAID
5/RAID 6 mode.
RAID recovery failure:
• R ecorder:
MAIN RAIDm RECOVERY FAILURE
• E xtension unit:
EXTu RAIDm RECOVERY FAILURE
m: Operational mode
u: Unit number