When I got home from work I was expecting the network to be down, like described in my previous post today. But to my horror the entire rack was dead. The UPS had shutdown completely, I had to reconnect my bad batteries for it to start again. I contacted APC to check if this is normal behaviour when no batteries are connected for a longer period of time. The servers are now checking data integrity on the disks but I expect everything to be running again soon. I don’t like this situation with the UPS though, I sure hope APC will come through for me on this one.