Agret
Cadet
- Joined
- Aug 31, 2021
- Messages
- 5
I have a FreeNAS setup I made for a client about 5yrs ago. Has been running great until a drive of his failed, he said when he boots up the system he can see the network share and the contents in explorer but when he tries to access files it will play a part of a video then the system freezes so he would do a hard power off and start it back up and it would run fine for awhile and then have the same freezing issue. He told me it has gotten worse and worse over time and now freezes basically the first file he tries to access.
I booted it up into Windows PE and checked the drives with Hard Disk Sentinel and one of them has failed and the other is reporting around 70% health. There was 4 disks in this RAID however one of them the SATA cable was bumped loose out of the board (did not have the locking clip) so i'm not sure how long that 4th disk has been offline. So in this setup we currently have 1 failed disk, 1 offline disk, 1 partially degraded disk and 1 that is operating normally.
After I unplugged the one that has failed and was causing the system to keep freezing I booted it up into FreeNAS and i'm not sure how to see the volume, it doesn't come up as a Windows share and I can't seem to see any file browser in the webui. The webui was not functional in chrome so I had to access it with IE. He was using an old build that was released in 2016 so I updated his USB to the latest 9.10 branch of FreeNAS using the webui updater which went through no problem.
I think before doing the recovery I will have to clone the degraded disk to a fresh drive using ddrescue. Should I connect up the offline disk as well? How do I get read-only mount of the system for file recovery and how to access each drive individually and copy just the files on each to a USB for backup before I wipe the array and rebuild it with new drives. I understand the advantage of ZFS is that you can access any files stored on the individual drive as it stripes full files rather than logical sectors like legacy RAID setups right?
I booted it up into Windows PE and checked the drives with Hard Disk Sentinel and one of them has failed and the other is reporting around 70% health. There was 4 disks in this RAID however one of them the SATA cable was bumped loose out of the board (did not have the locking clip) so i'm not sure how long that 4th disk has been offline. So in this setup we currently have 1 failed disk, 1 offline disk, 1 partially degraded disk and 1 that is operating normally.
After I unplugged the one that has failed and was causing the system to keep freezing I booted it up into FreeNAS and i'm not sure how to see the volume, it doesn't come up as a Windows share and I can't seem to see any file browser in the webui. The webui was not functional in chrome so I had to access it with IE. He was using an old build that was released in 2016 so I updated his USB to the latest 9.10 branch of FreeNAS using the webui updater which went through no problem.
I think before doing the recovery I will have to clone the degraded disk to a fresh drive using ddrescue. Should I connect up the offline disk as well? How do I get read-only mount of the system for file recovery and how to access each drive individually and copy just the files on each to a USB for backup before I wipe the array and rebuild it with new drives. I understand the advantage of ZFS is that you can access any files stored on the individual drive as it stripes full files rather than logical sectors like legacy RAID setups right?