Here is a good article explaining how to calculate IOPS for a single disk or arrays.
http://www.techrepublic.com/blog/datacenter/calculate-iops-in-a-storage-array/2182
Here is a good article explaining how to calculate IOPS for a single disk or arrays.
http://www.techrepublic.com/blog/datacenter/calculate-iops-in-a-storage-array/2182