Recently we've been having high disk latency issue and wanted to benchmark one of our mount points on a preprod server to get an idea of how much IOPS, Throughput and latency our SAN is capable of. Infra Hardware is maintained by another team and we do not have any visibility what they do.
As you can see, the max IOPS at 8K block size was around 5800.
So my question is, for a SAN in a not so small IT shop, is that a good number? Should we be aiming for more? What is an average IOPS figure for an entry level and high end SAN's.
Adding more info based further questions from answers.
1) Why 8k block - I read that readahead uses higher block sizes, but when I analysed the bytes per read counter it was around 8K, suggesting SQL server is not able to do a lot of read aheads. Does fragmentation have a role here?
2) I did test with a smaller file size(2GB) and the IOPS and through put was much higher, suggesting that the path is not the bottleneck. Also did test with higher block size, getting a through put of around a terabyte.