FreeNAS volume unknown

[vtrepair]

So I was asked to look at this FreeNAS problem. Let me start by saying yesterday I knew nothing about FreeNAS. Today I know barely more. Unfortunately they can't contact the individual that originally set it up. Customer is aware that I really don't know squat about this and I am pretty much terrified of screwing up the good volume.

General info is that they have 2x 12 drive volumes. One we will call 'main' the other 'main_backup'. 'main' shows up as unknown, 'main_backup' is healthy.

Commands I have tried:
zpool import
Says Faulted. the pool metadata is corrupted.

zpool import main
Says: cannot import main: I/O error. destroy and re-create the pool from a backup.

zpool import -Fn main
Nothing happens but a new shell line.

zpool import -F main
Says: cannot import main: one or more devices is currently unavailable.

camcontrol devlist
shows all 24 drives.

Daily smart report shows all 24 drives as ok.

Seeing as the other volume works and has all the data, destroying and re-creating the pool should not a problem.

Random worry is that I don't know how it originally replicating/backing up from 'main' to 'main_backup'. Is it possible that once I recreate a new fresh 'main' that it will start zero filling 'main_backup'? Is that even a legitimate concern?

Any basic steps that I have missed?

 

[Markverhyden]

Any basic steps that I have missed?

Ok, so only one pool is working. So you do not have a backup, has that been addressed. Have you logged into the GUI? Personally I find it much easier to use. Once the backup had been addressed I'd start doing things like rebooting, reseating drives, etc. Assuming these are zfs volumes have you tried scrubbing them? And how is the hardware setup?

 

[vtrepair]

I do need to find out if they have an actual backup. That is step one for tomorrow. I was using the GUI in conjunction with shell commands.I have only been connected remotely so far and I don't have much info on the whole hardware setup. From what I can tell it this is a 4 core Xeon with 16gigs ram and 2 3ware cards with 12 drives attached to each plus the boot drive. The main pool went down early December and they have been trying to track down the original tech. Guess they gave up on that yesterday. System uptime was 6 days, so they must have rebooted.They are zfs but I don't think I can do any scrubbing on the unknown pool, will double check tomorrow as well.

 

[Jeremy Leik]

You may be well served to try the freenas forums. https://forums.freenas.org All of these open source projects seem to have pretty decent community support. You could also try the Commercial Support from iXSystems if all else fails. https://www.ixsystems.com/freenas-commercial-support/