Okay, if I had pulled the corrupted drive out (yes, I knew it was file corruption. After I pulled it I tested with WD tools and Spinrite, no physical problems detected. I think the bad power cable caused the corruption) and replaced it with a new drive would the array rebuilt the data to the new drive? If so then why wouldn't it do it with the same drive that had no partition?
Understand that, this is why I made the mistake of pulling it out and formatting it and then putting it back into the array as if it were a "new" drive. This is after I let the system rebuild it for 16 hours.... but you might be correct about dirty shutdown, as I was not able to shutdown from the gui after that...
I can't remember at this moment if it was emulating that drive or now, I do remember that it was disabled but not sure if that was before or after I had to do the hard shutdown.
I did end up wiping the partition, the 8TB went from almost full to less than 18MB after the hard shutdown. So there won't be any way to recover it, it hurts but I am more interested in how to avoid this when it happens again, or something like it. As you know, drives will fail.. not if but when.
This all started after we moved houses, my temps were getting up there so I took off the top, saw that one fan was dead and another was moving too slowly. I powered down correctly and replaced those fans (with temps as I have ordered Noctua fan replacements for all fans but don't get them till Thursday), but to do that I had to unplug a lot of sata cables and a few power cables. That was when everything started going downhill.
Yes I have cloud backups of the important, can't replace stuff, home movies, pics, financial records but what I lost is a lot of DVD and bluray ripping!! LOL I am very well versed in "If you don't have backups then you don't have backups, period!" A hard earned lesson many decades ago.
What I really need to know is; does putting sata cables from HBA and/or motherboard back in different locations on a backplane cause problems? What are the correct steps (other than posting in these great forums for help) if you do get file corruption?
I have attached my diagnostics but I am pretty sure it won't show my mistakes from yesterday but I appreciate you taking the time.
tower-diagnostics-20200316-1825.zip