I've just built my 4th OES2 cluster, the first with SP2. I'm still building and configuring resources and the SAN 'feels' slow (EMC CX300 / 2Gb fibre). I'm just starting to benchmark it against the other production clusters.

One of the symptoms is that the 'cluster status' command from either node takes 2 or 3 seconds to return the status. On my production clusters it takes less than a second to return status on half a dozen resources. This made me wonder, does the cluster status get it's info from the SBD partition? Would this be another indication of poor SAN performance?