Hi
I am looking for the calculation to find out the maximum IOPS that a Disk shelf can provide , Raid type is RAID-DP .
1) is it just Number of disk X IOPS per disk
It should not be right ? we have to consider write penalty for parity and also the Shelf Loop has a limitation of bandwidth (2G/4G)
2) How Size of IO and Type of IO play their part ..
For example : If we consider 50% Read and 50% write IOPS, how much IOPS we will get , and how its is calculated
3) How latency play its part in the calculation .....
I am searching a deatiled calculation that consider these all matrix and provide the IOPS that a Shelf offer ...
Do netapp explains these calclulation somewhere , Any Doc will be gr8 help
Thanks in advanced
Bipul