does anybody has a good idea on how to size FAS900 in front of an 8-frame VMAX ? We want to ensure that the FAS9000 is not running out of power ...
We have quite limited insight into the performance characteristic of the VMAX environment so a good rule of thumb would be highly appreciated - my own idea is that a FAS900 HA system should be sufficient but I might be completely off ...
I think the question really relates to what the front end workload looks like?
Is the plan to put the FAS9000 in front of the VMAX and move the workloads 1:1 block from the VMAX to the NetApp system? I suggest the FlexArray guide is the best place to start reading.