raid 5 failed after disk swap

[TheFoxHK]

There is a problem with my disk 3 so I swap it out this morning, an i/o error occurred to my disk 2 while rebuilding the raid, it became unreadable by the NAS so I put back the disk 3 in (as it is still usable) and put the new disk to disk 2. Now the NAS is able to detect all the disk as healthy and reachable but disk 3 is "free" instead of "data". I tried the recovery-scan free disks but it could not detect the raid content on disk 3. Please help!
Model: TS-451
Current firmware version:4.3.3.0299

[dolbyman]

were you using the nas during the disk replacement?

[TheFoxHK]

were you using the nas during the disk replacement?

No.

[MrVideo]

What is your NAS configuration? No info about RAID config, HDD models/size.

[TheFoxHK]

What is your NAS configuration? No info about RAID config, HDD models/size.

Raid 5 with 4 hdds, have both wd and Seagate drivers. Original ones are 2tb each, the new one is 3tb

[MrVideo]

What model WDs and Seagate?

[peoyli]

Been there, done that...
You _might_ have that same luck as I had: I was able to clone the three remaining disks (after the initial failure) to new disks using ddrescue on an external system (using Trinity Rescue: http://trinityhome.org/), then put the new disks back in the QNAP (same order, if it matters) and rebuild to the fourth new disk (the one on the initial failure).
No data loss (what I know of), so the bad blocks was on an unused space of the disk that failed during rebuild.

viewtopic.php?f=25&t=122300

[TheFoxHK]

What model WDs and Seagate?

1 wd green
1 wd black (the one that broke with i/o error while rebuilding)
2 Seagate desktop 2tb
1 Seagate desktop 3tb (the new one for replacing)

[dolbyman]

so no nas drives ...hope you got backups

[TheFoxHK]

Been there, done that...
You _might_ have that same luck as I had: I was able to clone the three remaining disks (after the initial failure) to new disks using ddrescue on an external system (using Trinity Rescue: http://trinityhome.org/), then put the new disks back in the QNAP (same order, if it matters) and rebuild to the fourth new disk (the one on the initial failure).
No data loss (what I know of), so the bad blocks was on an unused space of the disk that failed during rebuild.

viewtopic.php?f=25&t=122300

dont have spare drives and I have to leave in a few days from the NAS for a long time... might just goto a data recovery center

[peoyli]

dont have spare drives and I have to leave in a few days from the NAS for a long time... might just goto a data recovery center

So you hope they will recover the data from and to the broken disk(s) ? Either way, you need to get replacement disks for the QNAP.

[ITEngineer]

There is a problem with my disk 3 so I swap it out this morning, an i/o error occurred to my disk 2 while rebuilding the raid, it became unreadable by the NAS so I put back the disk 3 in (as it is still usable) and put the new disk to disk 2. Now the NAS is able to detect all the disk as healthy and reachable but disk 3 is "free" instead of "data". I tried the recovery-scan free disks but it could not detect the raid content on disk 3. Please help!
Model: TS-451
Current firmware version:4.3.3.0299

Have you log this ticket to the QNAP Support ?
Or have you checked the drive is supported under the compatibility list ?


Sent from my iPhone using Tapatalk