IOPS,statspack and filers

hi  

i am trying to do get a baseline configuration of a few oracle databases(version 9i) with reference to IOPS.  

for calculating IOPS, i am trying to validate whether statspack IO statistics section is accurate enough. I am calculating IOPS using average phyrds/sec_avg phywrites/sec (for both temp files and data files)  

i am facing a scenario where the IO numbers from statspack are more than what the filer(my storage device) can handle. i would like clarifications on these
- whether statspack IO is the exact physical IOs or there is some tweaking to this or whether this is not the right way to calculate.

• if it is the right value, how could it show a higher value than what is possible on the filer.

please let me know if your ideas on this.  

thx for your time and help
sai    

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