Hello, The estimated max is based on a fixed blocksize to do the calculations.  If you are running a different average than that, that would explain what you are seeing.   There is a section in the manual, also available online which has more info on interpreting these numbers. 
Hi - I'm looking at a new 4100E with SANHQ - I'm pretty new to it, so I'm digesting a lot of new stuff right now. I'm watching the Estimated Max IOPS It's saying 313 right now, but for the last day I'm running between 900 and 1900 IOPS. Read/Write is 58%/42%. So where is the estimated max coming from? I'm running at least double what the estimated max is right now...   Thanks,     Ed
SANHQ - Current IOPS vs Max Estimated IOPS