As the thread title indicates, experienced my first ever PSOD (Purple Screen Of Death) today on an ESX host. I created a volume on our SAN and presented it to the ESX cluster then, when attempting a rescan of our HBAs, the host coredumped and presented me with a beautiful shade of sickly purple when I iLOd onto it.
Some Things I Learned About Rescanning When Adding Storage:
1 - Put the host into maintenance mode first (doh!)
2 - Scan ONE hba at a time - DON'T use the global rescan
3 - DON'T do this in the middle of the day
On the plus side - the PSOD is REALLY purple - great for any of you Prince fans out there
