Jump to content
We're Hiring! Full Stack Developer ×

Migrate physical drive to an entirely new server


Recommended Posts

I have a server whittling away currently running 4.x


I've built a seperate larger in scope server with 5.x currently running (virtualised, though makes no difference here) and a couple of token new 3TB disks in place including parity.


Rather than rsync data across and do a phased migration of data - drain one disk in old server by rsync'ing to new, wipe disk in old server and install as a new blank disk in the new server to use as the target for the next old disk..and so on..


What happens if I just take a physical disk from the 4.x machine, drop it in the 5.x machine and boot unraid? Will it just let me assign it a slot and nothing further (other than a parity regeneration and I'd presumably also have to run the fixperms script)?


i.e can I Just pick up all my physical disks from the 4.x machine, drop them in the 5 machine boot unraid and give them slots and I'm done (other than redoing share and user configs but that's minutiae) or am I asking for trouble in terms of goemotries / any differences in MD drivers between 4 and 5 etc.

Link to comment

Yes, you can just move the disks over. You would have to assign the disks, initialize the array, build parity and run the new permissions script.


If you get a drive that appears to be unformatted then stop right there and come back here. unRAID has changed the MBR and moved the partition a few times in the past. The good thing is that it's fairly easy to fix as long as you don't attempt to format the disks. A few other threads with the same problem have been here recently and all went well fixing the problem.





Link to comment

Thanks - that's re-assuring.


Can you point me in the direction of the threads you mentioned? I'm inclined to think if the drive pops up as unformatted to just commit it as being a disk to rsync the data from rather than trying to fix it - but it might be a trival fix..?

Link to comment


This topic is now archived and is closed to further replies.

  • Create New...