Datastore presentation doesn't appear to have changed; I checked up on the EVA and it seems healthy.
I don't see any event logs from this timeframe when checking the server management (OA/iLO)
I've got a request out to our lab team to check on SAN logs for this machine.
Yeah, I've had one ESX host's HBA use a different firmware ... that changed the UUID that it mounted based on the Hash algorithm ... nasty to figure that out.
I've marked the thread answered, as I appreciate the help/tips! I'll reply back if we find anything good in the SAN logs.
Thanks ... if you want to award points ... you have to view the thread and each of my posts should have a "helpful" or "correct" button to actually assign the correct answers. totally up to you if you want to use them.