Hi everyone,

I'm currently running Proxmox and I'm considering migrating to Unraid. Before I proceed, I'd like to understand the best way to handle my existing storage setup without risking any data loss.

My current configuration is:

- Proxmox host

- ZFS RAIDZ1 pool consisting of 4 × 4 TB hard drives

- 1 SSD used as a cache device

My main concern is preserving the data currently stored on the ZFS pool. I do not want to lose any data during the migration process.

Is there a recommended migration path from Proxmox to Unraid in this scenario? Can Unraid import and use an existing ZFS RAIDZ1 pool directly, or would I need to back up the data, recreate the storage configuration, and then restore everything?

I would also like to understand how the SSD cache drive could be integrated into Unraid after the migration.

If anyone has migrated from Proxmox with a similar setup, I'd really appreciate hearing about your experience, any potential pitfalls, and the safest way to preserve the existing data.

Thanks in advance for your help!

To clarify, are you currently running unraid on proxmox or just simply migrating from proxmox to unraid?

If you are coming to unraid from proxmox:

Unraid should be able to import your zpool but you will need to export it from proxmox first. Just be aware that any/all top level folders/subvolumes/datasets will be converted into unraid users shares if you allow the zpool to participate in user shares.

What you will need to do is create an unraid pool of the same name your zpool currently is, add the disks to the disk slots for the pool, leave the filesystem set to AUTO, and simply let unraid import it.

I'm currently using Unraid on my home server and Proxmox on another server. I'm very happy with Unraid, and I'd like to migrate the second server to Unraid as well.