ESXi SSD / NVME actual IOPS numbers

[Vitaliy (Staff)]

We tested it with latest Current (V8) build. It is 10695 (24 February 2017)

You can download it here:
https://www.starwindsoftware.com/customer-page

[dwright1542]

Hello!
At this point, we face with a problem that ESXi iSCSI Initiator performance is bounded by CPU and limited by the performance of one core on ESXi host. In our lab, on 4K random reads we got only 150000 IOPS. Currently, we are looking for the possible solution of it.
On the other hand, we have got very nice results with MS iSCSI Initiator!

That's almost the same numbers Oles and I were getting with my FusionIO cards 18 months ago...actually it's a bit better. I think we were getting 100k, although your CPU's may be faster. I was seeing WAY worse performance on AMD hosts, maybe 60k. Again, CPU dependant.

However, I hadn't heard that it was actually the ESXi inititator that was the issue. That's new info, and doesn't make total sense to me. I'm not seeing the same IOPS issues with hard flash iSCSI storage on the same boxes?

-D

[Vitaliy (Staff)]

Hello Darren,
Could you please clarify the configuration with hard flash iSCSI storage?
Thank you!