TrueNas scale crashing

Hi all,

I’m new here and need a little help.

I’ve been using TrueNas for years as a Nas/Plex server. I have an AMD 3600, forget which motherboard, 32gb Corsair 3600mhz ram and 4x 4tb SATA HD. It’s never let me down, always works.

Recently I decided to treat myself and buy the bits to make a Nas with more space. I bought another AMD 3600, same chipset but different brand motherboard, 32gb ram, but this time bought a PCI sas controller and 7x 12tb sas drives.

I went to install truenas and saw that jails are being discontinued so installed TrueNas scale. As I wanted this Nas to just be for media I installed Plex server via the app store and immich for photos.

I started copying (luckily copying) data across from the old Nas and left it running over night. Next morning I couldn’t log into the Nas via the web portal. It had a loading bar and had a message saying it was trying to contact the server. I restarted the whole thing and continued copying. At some point that day the copying got stuck but didn’t fail, the speed just dropped to 0. I tried to log in again and had the same problem. Restarted it and everything was fine.

I’m new to sas drives and thought I had messed something up so took everything apart, put it all back together again, updated all the bios’/drivers I could find and went to bed. Next morning, same problem, couldn’t log in. This time I wasnt copying, so don’t believe it’s to do with hardware/sas drives. I restarted the box and went away for work for a week.

When I got back I realised that Plex had never restart when the box had been restart and I could log in fine! I restarted Plex and next morning couldn’t log in. I decided to wipe the whole thing, re installed TrueNas scale and found a guide to install Plex correctly, followed it to a tee, incase I had made a mistake previously. Started copying files again over night and next morning, same problem. Turned off Plex for three days, no problem at all.

It seems that whatever I have done is causing Plex to crash the system, but as I haven’t changed any settings, everything is default from the 2nd install, I can’t work out what it is. There are no logs in TrueNas indicating an issue. All my drives pass every scan with no errors, Lastly I found that if I plug in a monitor and look at the console after it’s got stuck, I don’t see the 1-9 options, I get a whole bunch of code which I don’t understand and I can’t scroll up or down to investigate. It’s like it’s stuck. I have attached an image of it.

If anyone has any ideas, I would really appreciate it as I’m pulling my hair out!

Small update: I re-installed TrueNAS yesterday. I bought a new 256gb M.2 SSD for the boot drive incase that was dying. I also bought a SATA 500gb SSD drive to have a separate pool for applications like plex server and immich. I set everything up, following the installation guide to a tee. Set some data copying over night. woke up this morning and its crashed again. Had to hard reset the box. Once its rebooted, no problems at all. no errors, nothing

Ok, was copying files back to the new NAS when the pool suddenly became unhealthy. Managed to capture this on the monitor, I think my SDF drive has a problem. Just need to work out which one it is now…