wyodoc1

Jorge thank you, it seems to have worked. A quick check of the data looked good, drives are not doing a data rebuild, thanks to itimpi for monitoring the forums, and JorgeB for the extensive knowledge and both of you for giving of your time and knowledge.

Thanks, I will give it shot, very little of the data isnt backed up elsewhere should it go badly.

Thank, makes sense. While my confidence is pretty high on the valid parity, would it be safest to begin rebuilding with new drives, mounting the current drives and copying the data manually?

They are formatted XFS.

I do have the original drive #5 I removed and can use the intended replacement for it to replace dead #8. This gives me some hope, thank you. I will do some reading on the New Config tool, and the invalidshot command, but wait any offered guidance before I try anything.

Correct, it is terminal and will not register in BIOS, I have tried several systems to eliminate the motherbaord and an USB drive enclosure.

Thanks, yes been around long enough I should have done it. storage-diagnostics-20210115-2306.zip

I have an 8 drive array, and had a drive showing an increasing number of UDMA CRC error count, I decided it was a a good time to change it. A parity check was performed, single parity drive. Drive #4 a 5Tb was removed, but I still have it. I replaced Drive #4 with an 8Gb and let the parity rebuild begin. When almost complete drive #8 which had no indications of previous errors and no pre-failure concerns. I do and did look at all drives health before beginning. Now the array wont start because of too many wrong drives. I have the original 5Tb and it is still a functional disk. If I try to add it back it to the array I assume it will just want to be reformatted as if it is a new disk. So I am coming to the knowers-of-all things, am I F'd?