Hi,

I'm fairly new to administering VMAX storage so please bare with me!

My team have been asked to generate some traffic over our SAN (VMAX20K , FCoE to Cisco UCS). At present, we have a virtual machine on a host dedicated to that VM. We are presenting an RDM 5TB disk from our VMAX to this VM using physical compatibility within VMware.

The VM specification is:
- 16 vCPU

- 1TB RAM

- 5TB Disk NTFS formatted.

I am running IOMeter on the VM, with the following settings to try and simulate a rough SQL workload:

-  100% Random distribution

-  34% write, 66% read

- 16K block size

- 32 Outstanding I/O's per target.

At present, when I run the test I'm only seeing ~12,000 total I/Os per Second reported through IO Meter. I'm not sure if this is a great number or not, my gut feeling is that it isn't.  Viewing the performance on Unisphere in real time is showing around 13,600 host IOs/sec.

Our thin pool for this disk FC disk (RAID5 - 7+1) which is made up of 24 * 550GB 15k RPM disks.

Is there anything I'm missing? This is a bit of a novice question, so apologies for that. If any further information is needed I'd be happy to provide it!

Thanks,

Ryan