Hi all,
Having a bit of an issue with one of our FreeNAS boxes for the past couple of days. I'm not really any closer to sorting it (other than figuring out what causes the panic).
Essentially what happens is, the FreeNAS box starts up as normal, then within about 2 minutes of being at the main menu on the console, a kernel panic appears to occur. I can't see what the first few lines of the panic are as they start scrolling way to fast. It eventually then ends with a line saying "reset" and the machine reboots. The cycle then starts again.
The problem is very similar to this post from last year, except from mine actually restarts rather than sitting there, and mine also did not have any issues on it's last scrub.
I've narrowed it down to when the volume is imported, as I've re-installed the USB sticks (did this when I thought it was an OS issue) and I've left the machine running for about 1 hour without restarting. Then as soon as I run the "zpool import" command, the machine panics.
I've then thought it could be a bad stick of RAM and have ran some diagnostics (they were fairly quick running for about 3.5 hours for 2 x 4GB dimms. I could run more intensive tests if you think it is required.
If I mount it readonly within normal mode, it does appear to be fine and does not panic.
I then found this post and tried the first suggestion on here. I booted to single user mode, firstly without using the zfs_recover and zfs.debug command lines (so literally just entered single user mode without changing anything). I then ran the command "zpool import -R /mnt vol1" and this worked, I did not experience any restarting in about 20 minutes. So I restarted into normal mode again and instantly starts panic again.
Back into single user mode with the zfs_recover and zfs.debug command and I've imported the volume again as normal with "zpool import -f -R /mnt vol1" (I had to use -f this time as it said it was previously used).
This is where I currently am and not sure what to do. It's currently running a scrub but it's going to take a little while. Not really sure if this will achieve anything!
Machine specs are:
Dell PowerEdge T20 With Xeon E3-1225 v3 @ 3.20GHz
8GB of ECC RAM (we have 16GB to go in soon)
Dual Kingston USB sticks
4 x 1TB WD RED (we have 4 x 4TB to go in soon)
FreeNAS-9.10-STABLE-201606270534 (dd17351) (think this is very latest)
I have 11 other of these exact same machines and all of these are working fine at the moment so thinking it must be a corruption on the volume somewhere!
Having a bit of an issue with one of our FreeNAS boxes for the past couple of days. I'm not really any closer to sorting it (other than figuring out what causes the panic).
Essentially what happens is, the FreeNAS box starts up as normal, then within about 2 minutes of being at the main menu on the console, a kernel panic appears to occur. I can't see what the first few lines of the panic are as they start scrolling way to fast. It eventually then ends with a line saying "reset" and the machine reboots. The cycle then starts again.
The problem is very similar to this post from last year, except from mine actually restarts rather than sitting there, and mine also did not have any issues on it's last scrub.
I've narrowed it down to when the volume is imported, as I've re-installed the USB sticks (did this when I thought it was an OS issue) and I've left the machine running for about 1 hour without restarting. Then as soon as I run the "zpool import" command, the machine panics.
I've then thought it could be a bad stick of RAM and have ran some diagnostics (they were fairly quick running for about 3.5 hours for 2 x 4GB dimms. I could run more intensive tests if you think it is required.
If I mount it readonly within normal mode, it does appear to be fine and does not panic.
I then found this post and tried the first suggestion on here. I booted to single user mode, firstly without using the zfs_recover and zfs.debug command lines (so literally just entered single user mode without changing anything). I then ran the command "zpool import -R /mnt vol1" and this worked, I did not experience any restarting in about 20 minutes. So I restarted into normal mode again and instantly starts panic again.
Back into single user mode with the zfs_recover and zfs.debug command and I've imported the volume again as normal with "zpool import -f -R /mnt vol1" (I had to use -f this time as it said it was previously used).
This is where I currently am and not sure what to do. It's currently running a scrub but it's going to take a little while. Not really sure if this will achieve anything!
Machine specs are:
Dell PowerEdge T20 With Xeon E3-1225 v3 @ 3.20GHz
8GB of ECC RAM (we have 16GB to go in soon)
Dual Kingston USB sticks
4 x 1TB WD RED (we have 4 x 4TB to go in soon)
FreeNAS-9.10-STABLE-201606270534 (dd17351) (think this is very latest)
I have 11 other of these exact same machines and all of these are working fine at the moment so thinking it must be a corruption on the volume somewhere!