I am moving my 14 disk array on Unraid Pro 6.12.4 to different hardware.  I took a picture of my configuration before tearing down the old setup, and after moving my USB stick and booting up the new setup, 6 disks were identified fine with green ball (presumably the ones on the motherboard SATA ports) while the other 8 were showing "missing" initially. 

 

I matched each slot with the correct disk from Unassigned Devices, but now each reads "wrong" and I cannot start the array due to "too many wrong and/or missing disks".  It does look like the expansion card is assigning a different naming convention, but one can see by the serial numbers that everything matches.  What's my next step in this case?

 

Thanks!

it looks like the host adaptor for these disks manipulates the label instead of just passing it through (or, maybe this happened on the old hardware, but it is surely a controller problem . But since SOME disks are transferred correctly, it is much more likely that the new controller is the culprit).

Thats why UNRAID cannot find them back again. "WD101..." -> "WDC_WD101..."

 

Maybe some Disk Specialist here ( @jorge?) may help out. I would have an idea, but it is dangerous and I am not really sure it would work. So better someone with more experiance comes up and tells you what to do.

 

Edited June 16, 20242 yr by MAM59

If only the names changed you can do a new config and check "parity is already valid" before array start, but be aware that some RAID controllers can also change the MRB or partition, and in that case there could be other issues.

Thanks for the feedback.  I decided to move my old RAID card to the rebuilt machine rather than deal with the renaming issue.  Everything appears as normal now and I was able to bring the array online.  I was having some unexplained shutdowns in the previous unit, which is why the hardware swap.  As long as the RAID card wasn't the culprit I should be ok.  I'm going to run a parity check now so I should know in 36 hours.