Hi all,
I've been using TrueNAS Core this year after upgrading from FreeNAS. I ended up setting up a new pool when I did this - using three 2TB drives. I'm running into trouble though.
A couple of weeks after running TrueNAS, the machine became completely unresponsive - nothing even showing on the local terminal. I had to hard reset it. When it came back online, everything seemed fine.
Now, this is just a testbench server for me at the moment, and I backed up a ton of data from my laptops onto it and then hadn't looked back on the machine again until a couple more weeks had passed. It was in the same state - totally unresponsive. It also seemed to be running pretty hot/using a lot of electricity (I have it on a UPS and the utilisation was pretty high), so I forcibly shut the machine down until I had time to look at it.
So now I've switched it back on - it takes a *long* time to boot up, complaining about read errors on one of the drives. When it finally boots up and I'm able to see the web interface, my pool is showing as offline. I also have errors on two drives according to the notifications:
/dev/ada1, 8 Offline uncorrectable sectors.
/dev/ada1, 8 Currently unreadable (pending) sectors.
/dev/ada4, 760 Offline uncorrectable sectors.
/dev/ada4, 760 Currently unreadble (pending) sectors.
It seems like I have two dead disks in my array? I have a few problems:
1. This was the first time setting up a ZFS arrray, I think I set it up as RAIDZ but honestly I can't really remember. The GUI is just showing the pool as offline and isn't giving me any further details. Is there any way to find out?
2. These 2TB drives were brand new. Two dead disks out of three? Is it possible the unreadable status is due to something else, and the disks aren't actually toast?
3. I don't mind setting this all up from scratch, but I'd like to see if I can retrieve any data from the disks first. Bearing in mind there are unreadable sectors, is there any way to just force it online and copy off what is readable?
Thanks for any help,
Chris.
I've been using TrueNAS Core this year after upgrading from FreeNAS. I ended up setting up a new pool when I did this - using three 2TB drives. I'm running into trouble though.
A couple of weeks after running TrueNAS, the machine became completely unresponsive - nothing even showing on the local terminal. I had to hard reset it. When it came back online, everything seemed fine.
Now, this is just a testbench server for me at the moment, and I backed up a ton of data from my laptops onto it and then hadn't looked back on the machine again until a couple more weeks had passed. It was in the same state - totally unresponsive. It also seemed to be running pretty hot/using a lot of electricity (I have it on a UPS and the utilisation was pretty high), so I forcibly shut the machine down until I had time to look at it.
So now I've switched it back on - it takes a *long* time to boot up, complaining about read errors on one of the drives. When it finally boots up and I'm able to see the web interface, my pool is showing as offline. I also have errors on two drives according to the notifications:
/dev/ada1, 8 Offline uncorrectable sectors.
/dev/ada1, 8 Currently unreadable (pending) sectors.
/dev/ada4, 760 Offline uncorrectable sectors.
/dev/ada4, 760 Currently unreadble (pending) sectors.
It seems like I have two dead disks in my array? I have a few problems:
1. This was the first time setting up a ZFS arrray, I think I set it up as RAIDZ but honestly I can't really remember. The GUI is just showing the pool as offline and isn't giving me any further details. Is there any way to find out?
2. These 2TB drives were brand new. Two dead disks out of three? Is it possible the unreadable status is due to something else, and the disks aren't actually toast?
3. I don't mind setting this all up from scratch, but I'd like to see if I can retrieve any data from the disks first. Bearing in mind there are unreadable sectors, is there any way to just force it online and copy off what is readable?
Thanks for any help,
Chris.