Last weekend I upgraded my hosts from 5.1.0 799733 to 5.1.0 1065491.
The upgrade went smoothly but something happened to my datastores after the re-boot -- something relating to disk signaturing. At the time, I was under pressure to get the infrastructure up and running so I selected "continue withotu resingaturing disk" (or something to that effect) as I was worreid resignaturing may cause problems.
Now I have a situation where my second host does not see those datastores at all.
So as it stands, I have 1 of my 2 hosts connected to those datastores (and it's running fine), and my second host can't see any datastores. I've removed all dynamic & static targets iSCSI and re-added them, but when I rescan all HBAs it still doesn't see the datastores at all -- they're just not showing up.
How can I fix this?