Forum Discussion

Follower

Jul 26, 2022

Is it possible to migrate?

I have ReadyNAS 426 and 6 4GB disk in RAID-6 pool (about 13TB used). Can I somehow migrate to RAID-5 (or X-RAID) or RAID-1 and 3 20TB disks? I want to avoid copy data out of NAS and back. Regard...

Adding Disks

Installation & Upgrade

StephenB

Guru - Experienced User

Jul 26, 2022

filipn wrote:

I have ReadyNAS 426 and 6 4GB disk in RAID-6 pool (about 13TB used). Can I somehow migrate to RAID-5 (or X-RAID) or RAID-1 and 3 20TB disks?

Not using the NAS web ui. I think it might be possible with ssh, though it would be complex - and I would strongly recommend a backup before beginning.

FWIW, you'd use RAID-5 with 3x20TB, not RAID-1.

Sandshark
Sensei
Jul 26, 2022
It would be a very long process, as each step would require a re-sync. You'd first need to switch from RAID6 to RAID5 using this process:
https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/RAID6-to-RAID5-without-volume-re-creation-is-possible/td-p/1928861 .

Then swap out three of the drives, one at a time and allowing for re-sync, using normal drive upgrade process.

Lastly, you'd have to remove the remaining 4TB drives using this process:
https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/Reducing-RAID-size-removing-drives-WITHOUT-DATA-LOSS-is-possible/td-p/1736125 .

I think you could do that last step all at once (removing all the unwanted drives with one command/re-sync), but I've not tried it.

And you'd need to insure you have a backup before starting, as there are a lot of steps where something can go wrong. IMHO, not worth the effort. Just make the backup, swap all the drives, re-create the environment (restoring a saved configuration file will go a long way in accomplishing that), and then restore the files. If you have apps, make sure you install them before restoring the configuration backup.