After computer did a random reboot (there is a hardware issue with the power supply not relevant to the NAS) I have lost my dataset. I can see the exported pool on the drives but truenas wants me to create a new pool and then import the old. Does how I’ve written this make sense? I don’t really understand a lot of the jargon for NAS.
This could be as simple as creating a new pool and importing the old but I lost a NAS some years ago and don’t want to make assumptions before getting advice.
Creating a new pool with the old disks would wipe your data, DO NOT DO THIS!!!
Under storage should be an option to import your old pool, see if it’s available for import and if yes try an import via GUI.
If it’s not available via GUI you’d have to go to shell and try via zpool import
There is a box that says “disks with exported pools” below that a button “add to pool”. When I click add to pool there is an option to “create new pool” or “add to existing pool”. I try “existing pool” but there is nothing there.
I think you are in the wrong menu.
Can you screenshot your whole Storage menu.
Should look like this.
I know the one you’re talking about here it is still showing no options
I accessed it another way as it shows the drives with the pool still there. But the path below is missing.
Ok fair enough.
Can you post the output of zpool status from the shell.
try sudo zpool status then enter your admin password.
ok how about sudo zpool import
Ah there we go.
So thats your pool however it’s a stripe of 8 drives which means if one drive fails you lose the entire pool and one of your drives failed.
Were you aware of this? ie 8 disk stripe = bad?
Is there any chance that perhaps the ‘unavailable’ drive is disconnected somehow?
If you go back to the UI under storage, disks can you see 8 disks plus 1 for your boot?
Post the output of sudo lsblk -o NAME,PARTUUID and lets see if we can identify the missing drive.
No didn’t really know anything about NAS. I just had a load of discs, most different types. So just setup a jbod. I couldn’t see anyway to setup parity drive as it seemed to say they needed to be the same drive type.
In UI I see 7 drives and boot pool
Yeah thats a real eclectic mix of disks buddy.
So one being missing is both good and bad. Good because it could just be a case of getting it connected and you may be able to recover your data. Bad because it might have just literally died.
Your best bet is to try and identify which drive is missing from your pool and see if you can get it appearing again ie check connections etc.
Add this to the command sudo lsblk -o NAME,PARTUUID,SERIAL and make notes of the serial numbers and then power down your NAS and compare and find the disk that is not in that list. That is the drive you need to try and revive.
OK thanks. Just had a look and one of the drives lights was off. I just reconnected it and am rebooting the nas.
