UPS woes
I finally got around to to moving over our bigger VMs to our larger BL 690 blades after I had completed upgrading the RAM on them to get them up to 160GB each to give us some decent space for running some large SQL boxes with 32GB of RAM specified. The kicker for this was that one Sunday morning around 3am we lost power to teh server room. Now we have two UPS, one for site and one for the server room. The server room one is about 4 years old and had been serviced about two weeks previously, to give you some perspective this is a steel box the size of half a shipping container that you see on the decks of those big ships. However, at the appointed time everything in the control panel and all the capacitors went bang, we know not why and our other UPS was all happy to carry on. But basically we had a power blip that caused all the storage and all the host to crash. As all our server are set to remain off in this situation to avoid multiple crashes and allow us to bring everything up