EXT4 partition gone on Ubuntu 20.04 Raid 5 array after power failure
Posted: 04 Jun 2020, 01:28
4 disks - all 2tb WD Green drives of differing ages in a raid 5 array for a total of 6gb.
Power outage the other day during a period of heavy write.
Numerous attempts to reassemble or re-create the array have been unsuccessful. One disk shows nothing raid-like. Another disc shows raid, but has some concerning SMART data. 3 disks still had the raid flag set, but any attempt to re-assemble with only 3 drives plus 1 missing results in a non-mountable array with no recognizable file system. I've attempted using backup blocks to no avail. the only good news is that the array / disks have never been written to since the initial power disruption - having never been able to mount them successfully.
Most of the 6TB partition was backups of HD movies, but also 13 years of photos and home videos gone - no backups. Yes, I know, I deserve to be flogged.
Any other tips to get my partition back?
Power outage the other day during a period of heavy write.
Numerous attempts to reassemble or re-create the array have been unsuccessful. One disk shows nothing raid-like. Another disc shows raid, but has some concerning SMART data. 3 disks still had the raid flag set, but any attempt to re-assemble with only 3 drives plus 1 missing results in a non-mountable array with no recognizable file system. I've attempted using backup blocks to no avail. the only good news is that the array / disks have never been written to since the initial power disruption - having never been able to mount them successfully.
Most of the 6TB partition was backups of HD movies, but also 13 years of photos and home videos gone - no backups. Yes, I know, I deserve to be flogged.
Any other tips to get my partition back?