ModulatedDreams

This was my thought but had to see if anyone had any magic input haha. Thank you!

Hey all, been a rough week so bear with me while I explain the full situation. My setup: Unraid 7.2- single parity Parity: 16TB Seagate Exos (sdd) Disk 1: new 16TB Exos (sdi) - not yet rebuilt Disk 2: MISSING - 10TB Seagate Exos ST10000NM0086 - physically dead, not detected at all Disks 3-8: all healthy, all green What happened: About 2 weeks ago Disk 1 (was a 10TB Exos) started throwing critical medium errors and internal target failures. Bought a 12TB IronWolf Pro as replacement, rebuilt successfully, parity was valid, all good. Few days later the IronWolf Pro died. Traced it back to a dodgy custom PSU cable that I believe has now killed three drives total - the original 10TB Exos, the 12TB IronWolf Pro replacement, and now a second 10TB Exos that was Disk 2. All three were on the same custom cable. Cable has been pulled and replaced with stock PSU cables. Bought a 16TB Exos as replacement for Disk 1. Installed it tonight. While installing it, Disk 2 (the second 10TB Exos) also failed and is now completely dead and undetectable. So now I have two missing drives simultaneously and Unraid is giving me "Too many wrong and/or missing disks - invalid configuration." The timeline: Disk 1 rebuild onto the IronWolf Pro completed fully - confirmed healthy for several days Parity was valid after that rebuild completed Disk 2 died AFTER that rebuild completed Parity has not been touched or modified since the Disk 1 rebuild finished New 16TB Exos is sitting in Disk 1's slot - unassigned and unformatted What I want to avoid: I know New Config + parity sync is the nuclear option here and will treat the new Disk 1 as blank, losing whatever was on it. The data on Disk 2 is already gone - I accept that. What I'm hoping is that since parity was valid and clean after the Disk 1 rebuild just days ago, and Disk 2 died after that, there might be a way to: Tell Unraid that Disk 2 is permanently gone Use the existing valid parity to rebuild Disk 1 onto the new 16TB Is this possible with a specific procedure, or is New Config + parity sync my only option? What I haven't done: Have NOT run New Config Have NOT started the array Have NOT formatted anything Server is currently stopped Thanks in advance - happy to provide diagnostics, syslog, anything needed.

+1 for this feature would make it so much cleaner.