Yello, I have an old refurbished HPE server as my nas, and a couple of weeks ago we had a blackout (and our backup power failed too x-x). It wouldn't start afterwards, and took a few forced PSU removals to properly start up. I think since then, I've had my array in "Device is disabled, contents emulated" and can't really find a place to start online with fixing it, as I can't see what drive even failed in the logs or how.
Would love some guidance, thanks!

tower-diagnostics-20260730-1507.zip

SMART looks good, but there are some ATA errors logged, suggesting a power/connection issue. Check/replace both cables for disk1, and if the emulated disk is still mounting and the contents look correct, you can rebuild on top:

https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/array/replacing-disks-in-array/#re-enabling-a-disabled-disk-rebuilding-onto-itself

11 minutes ago, JorgeB said:

Check/replace both cables for disk1

They're in disk bays, and I don't know which one is which. Do you think it's safe to turn it off, switch the bay of both disks, and restart? Duno if that'll mess it up even more, changing locations.

just turned off the array, and it shows disk2 is not even present?

guess I'll have to move them around either way

Disk is disabled but present; you can try rebuilding again, I would recommend at least swapping bays first, in case the issue returns, to see it follows the disk or the bay.