I think it’s interesting to see what other people are working with, so I thought I’d advertise a couple of online surveys.
Kevin Closson’s RAC Survey has been kicking around for a while now and the only reason I haven’t participated is that we don’t use RAC at all at my current site.
Jeff’s 11g I/O Calibration Survey is new, though. 11g home users might want to get their results posted before Kevin C comes along and posts some outstanding figures!