Power cut has destroyed my setup

[newcomers]

Hi guys,

Had a small setup which consisted of 1 pc running a few containers and vms. Had a power cut this morning and proxmox wouldnt boot. Connected it to a monitor and it said no boot media found. Long story short I reinstalled proxmox but now my 2 data drives that were passed to omv appear to have no filesystems.

I have 2 ssds in mirror that proxmox is installed on plus 2 nvmes also mirrored for vms and containers.

The 2 problem drives are an internal 8tb drive that had all my media on and an external USB drive used for backups (luckily I also had online backup for my vms and containers)

When I run blkid, the 2 problem drives just show

sdd
sde

Instead of

sdd
- sdd1
sde
-sde1

And I'm unable to pass these to omv as I'm unable to provide a partuuid.

Any ideas? I have over 15 years of media on this drive.

Thanks in advance

 

[leesteken]

I have experienced consumer SSDs begin empty after an unexpected power loss. SSDs more data around in the background all the time, especially when trimming, and power loss can be fatal. Maybe search for a (probably expensive) data recovery specialist company in your area? You could try free tools for partition table recovery but they might also corrupt your data further if you're not careful. Maybe make a byte for byte copy first or consult a data recovery specialist before you do anything. Or just secure erase the drives and restore everything from backups.

 

[Mirmanium]

Totally different context, but I end up removing the partitions in a zfs raidz1 set up and managed to recover. Don't fully recall whole story but you can have a look at how I did it if somehow helps...

M

[TUTORIAL] Thread 'Recover ZFS RAIDZ1 pool (3x HDs) after all partitions being deleted'

Aug 25, 2023

This post is not directly related with Proxmox but since my server is using version 8.0 and all processes were executed using proxmox VMs, I found it worth it to share. If this is not the case let me know to move it to appropriate forum.

I want to share this “how to” for anyone who mistakenly could removed partitions from 3x HDs in a ZFS RAIDZ1 configuration without need of recreating pool from scratch + recover backup.
Credits to user2209743 from https://askubuntu.com/questions/1373040/recovering-data-from-zfs-pool-with-deleted-partition-tables who gave me some light...

• Mirmanium
• Replies: 0
• Forum: Proxmox VE: Installation and configuration

Since then, backups are key for everything. Now I don't feel anxious if something happen so consider investing on it if you don't have. Hope you can solve your problem!

 

[guruevi]

Sounds like you had a power issue that fried some of your equipment or the equipment was already bad and the power issue just demonstrated the problem.

I would suggest you restore from backup onto a new system, because the current system is likely compromised (very possible that next reboot, all your data is gone again, or things are silently corrupted).

If there is still data, you may be able to repair by re-creating the partitions the way they were, but that's not a guarantee and you'd have to have a really good inventory to know what that structure was. There is repair software and companies out there, but that's rather expensive and also not guaranteed.