i am not able to see the performance report... it is not opening properly... attach the screen shots or esxtop..results..
-can you confirm the total. LUN is divided/spread and owned between 2 controllers...
-did you done the partition alignment....if you use VMFS or RDM it is good to align the partition
http://www.vmware.com/pdf/esx3_partition_align.pdf
Aligned partitions start at 128. If the Start value is 63 (the default), the partition is not aligned.
- did you use RAID 10 for the redo logs...
- try to use RAID 50 for the DB data.. disks.. it is faster than raid5
- what is the raid strip size... makse sure the best size from the EVA manual to use in the oracle databases..
- what is the multipathing policy... you are using..it should be round robin
then what it below values you get from the esxtop... run esx top in the batch mode to monitor for 5 minutes..
GAVG (Guest Average Latency) total latency as seen from vSphere
KAVG (Kernel Average Latency) time an I/O request spent waiting inside the vSphere storage stack.
QAVG (Queue Average latency) time spent waiting in a queue inside the vSphere Storage Stack.
DAVG (Device Average Latency) latency coming from the physical hardware, HBA and Storage device.