Calculating IOPS on physical server as virtualization candidate.
Posted on 2011-03-01
I am working a project where I need to virtualize 30 existing physical servers.
I have collected perfmon data over the last week using logman including physical and logical disk counters.
I am currently looking at disk reads/sec and disk writes/sec, but these numbers aren't adding up to IOPS. For example I have 1 server with a RAID1. Perfmon says the reads/sec had an average of 6/sec over the last week, but the maximum was 656/second. But this can't possibily be right if the maximum (without solid state drives) would be about 150-180/IOPS per second.
What microsoft counters can I use to calculate the average IOPS usage per logical or physical disk without having direct access to the physical hardware.