We have run vscsiStats to measure our current production workload and wanted to simulate that same work on a different IO configuration. We have noticed that it is not possible to distinguish between "drives/LUNs" per VM and per host. It seems that you can only replay at the "host level".
Therefore, we are reverting back to running several IOMETER sessions simultaneously across the VMs on multiple hosts in order to simulate the IO activity that we captured from our production environment. We don't want to just "replay" vscsiStats "as is" because our configuraiton on the "back-end SAN" is different than what we have in production. We want to test out RAID 10 vs. RAID 5 and different SAN pools of "mixed drive types- e.g, NL-SAS, SATA, SAS, SSD". We are executing on EMC VNX storage arrays. Any suggestions are welcome.