Did the same, but I managed to sneak network cards into the UPSs. Meant I could monitor the power to see if it went down (and if it stayed off for 3 mins I could suspend all VMs and power down), and also temperature (same thing if the temperature spiked).
This was after the AC failed in that teeny room, and the Proliants ended up rebooting constantly overnight one night. They were so hot that you couldn't hold onto them, but bless them they were trying.
Only lost one hard disc. The rest recovered with no apparent ill-effects (although I suspect that lifespans were shortened).
Biting the hand that feeds IT
