2 Discs went down suddenly and threw up CRC errors, likely down to sata splitters, should be sorted now. I assumed I needed to run a Check filesystem, so ran it with -L on both discs, restarted the array but they are still emulated?

tower-diagnostics-20240528-2034.zip

You have to rebuild the disks to clear the emulated status.    Are the emulated disks now mounting when you start the array in normal mode, and does the content look like what you expect (as the rebuild will make the physical disk match the emulated one).

 

If you think the drives that were disabled are OK, then you can rebuild them onto themselves as covered here in the online documentation accessible via the Manual link at the bottom of the Unraid GUI. In addition every forum page has a DOCS link at the top and a Documentation link at the bottom. 

Disks mount and content looks ok. Suspect the drives are fine.

So follow the above guide to rebuild it? Is that going to redo all the data? Since its already there, is there no other way?

9 minutes ago, Napoleon said:

Since it’s already there, is there no other way?

Not really.   At this point you know the state of the data on the emulated drive(s), but not on the physical drives.

So this is going to rewrite all the data or just check it against the emulated?

It'll rewrite the whole disks. Wouldn't be any faster to check.

Edited May 28, 20242 yr by Kilrah

Speed isn't the concern, I've had other discs from this batch fail and one is quite an old drive. Was hoping there was a way to reduce the load on the discs.

Edited May 29, 20242 yr by Napoleon

They'd need a full read the same way whether it's to compare or to rewrite