I've read mapped a dozen times today. Even LL admits that April's outage, by their own grossly understated metric, was up 30 times the value in February. The culprit? Primarily the asset server.
[It happened again in the middle of that post... SL is useless for me right now. That's the big problem with their metric, it only counts lost online time, not time when being online is so bad as to halt the normal course of business. We can't sell or rent things if people can't get online, or can't stay on line long enough.]