Pool OFFLINE

[McNoob]

My TrueNAS pool has decided to go OFFLINE most likely due to failure in an upgrade. Running on TrueNAS Core-13.0-U3.1. Having 2 mirrored 8TB Seagate exos HDD and a SSD 500GB as boot disk. I have read hundreds of other similar OFFLINE threads where "zpool import" commands have fixed it or identified the issues, my problem however seems more serious. When typing zpool import -xx the repsones are "no pool to import". Checked BIOS and the HDD disks shows up and seem fine. I can see all three disks under Proxmox pve1/Disks as sda, sdb and sdc. Tried with running TN backups without success, still Pool Offline.
In TrueNAS under Storage/Pools is the only option System Dataset Pool - OFFLINE - EXPORT/DISCONNECT. My HDD disks and pool are simply not visible in TrueNAS.
Running on MB ASUS P6T Deluxe V2, 8 x Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz and 12 GB. Anyone with ideas how to get my pool on-line again?

 

[sretalla]

It seems you missed the memo on running TrueNAS in a virtual environment.

If you can still see the disks in Proxmox, then you haven't passed in a SATA controller/HBA, so you're probably now just arriving at the situation that we could have predicted from the start:

"Absolutely must virtualize FreeNAS!" ... a guide to not completely losing your data.

[---- 2018/02/27: This is still as relevant as ever. As PCIe-Passthru has matured, fewer problems are reported. I've updated some specific things known to be problematic ----] [---- 2014/12/24: Note, there is another post discussing how to deploy a small FreeNAS VM instance for basic file...

www.truenas.com

Sorry to be the one bringing you the bad news, but I think you may have lost it all.

 

[McNoob]

Thanks for the prompt reply. Yepp, missed that memo. Sad to loose data of course but I used the rig mainly for trial and learning. It worked for some time without any issues until now. Whats my option now? Export/Disconnect-button?

 

[sretalla]

Whats my option now? Export/Disconnect-button?

You may be able to disconnect the pool, but may be blocked if it's not properly imported.

I posted a thread about zombie pools a long time ago which may give you a solution if you can't get back the actual pool.

 

[McNoob]

My pool is back with all data, even NextCloud is up and running again. The command: qm set 101 -scsi1 /dev/disk/by-id/ata-XXXXXXX, same for my 2nd HDD (but scsi2), did the trick. This restored the lost HDD connections. Disks were Online but stated as "degraded", after some scrubs in TrueNAS they are now restored with green lights and 0% errors.

TrueNAS is however showing this alert:

CRITICAL​

Pool NASstore state is ONLINE: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected.​