Error recovery of the hard disk drive (when operating in the RAID 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 (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).
When the hard disk drive becomes faulty (down), replace it immediately. Refer to the operating instructions of the extension unit.
* Contact your dealer about replacement of HDD units.
Important:
•In the RAID 5 mode:
If 2 or more hard disk drives become faulty (2 down) or when another hard disk drive becomes faulty during the data recov- ery, it is impossible to recover data.
•In the RAID 6 mode:
If 3 or more hard disk drives become faulty (3 down) or when another hard disk drive becomes faulty during the data recov- ery, it is impossible to recover data.
Source |
|
| At a hard disk drive error (failure) | In the process of the recovery |
|
|
|
|
|
Recorder/ | Monitor 2 | RAID 1 | DOWN: [1down] |
|
Extension unit | (recorder) | RAID 2 | DOWN: [2down] |
|
| LCD (extension | RAID 3 | DOWN (only in the RAID 6 mode): [3down] |
|
| unit) |
|
|
|
HDD access indi- Lights red: The respective hard disk drive is faulty
cators(which can be recovered by replacing the hard disk drive)
•In the RAID 5 mode, it indicates that the respective hard disk drive is the first faulty drive.
•In the RAID 6 mode, it indicates that the
respective hard disk drives are the first and second faulty drive.
Blinks red: 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 respective hard disk drive is the second faulty drive.
•In the RAID 6 mode, it indicates that the respective hard disk drive is the third faulty drive.
Lights red and orange alternate- ly:
The respective hard disk drive in the RAID 5/RAID 6 mode is being recovered.
Recorder | [Error log] | RAID 1 DOWN: | RAID recovery failure: |
| (Refer to Operating | Recorder: MAIN RAIDm 1 DOWN | Recorder: MAIN RAIDm |
| Instructions (PDF) | Extension unit: EXTu RAIDm 1 DOWN | RECOVERY FAILURE |
| for further informa- | RAID 2 DOWN: | Extension unit: EXTu RAIDm |
| tion.) | Recorder: MAIN RAIDm 2 DOWN | RECOVERY FAILURE |
|
| Extension unit: EXTu RAIDm 2 DOWN |
|
|
| RAID 3 DOWN: | m: Operational mode |
|
| Recorder: MAIN RAID6 3DOWN | u: Unit number |
|
| Extension unit: EXTu RAID6 3DOWN |
|
|
| m: Operational mode |
|
|
| u: Unit number |
|
|
|
|
|
145
