I should probably plug those SAS cables back in then Image may be NSFW.
Clik here to view.
Don't worry, it's hands off. We've been able to restore the vms to other datastores (we have 14 other shared datastores, thankfully) so it's business as usual. And I've already had a call from VMware support and it's been escalated to Storage.
I'll post here when we know what's happened or what we did to resolve it.