topic Re: IOPS calculating tool in HPE Primera Storage

IOPS calculating tool

Samandar — Wed, 19 Oct 2022 06:28:01 GMT

Hi,

Can anyone tell me please, if there is a tool where I can calculate IOPS of HPE Storage ?

I have an oca configuration, and the customer wants to know about IOPS of the storage. How and where can I calculate IOPS ?

For example if I have configuration of Primera storage

Re: IOPS calculating tool

sbhat09 — Wed, 19 Oct 2022 05:55:11 GMT

Hello @Samandar,

Please check if NinjaStars helps you:

https://saf.hpe.com/safdesktop/info/findit/index.php

Regards,
Srinivas Bhat

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Note: All of my comments are my own and are not any official representation of HPE.

Re: IOPS calculating tool

Sheldon Smith — Wed, 19 Oct 2022 14:53:52 GMT

@Samandar wrote:
Hi,
Can anyone tell me please, if there is a tool where I can calculate IOPS of HPE Storage ?

You ask that like there should be some magic number. There isn't.

IOPS depend on the read/write ratio and the block size from the hosts. A host mostly reading 4KB blocks will have a much higher IOPS rate than a host mostly writing 64KB blocks. Inversely, 4KB blocks tend to a much lower throughput than 64KB blocks.

You can't compare apples with oranges. If you are looking for a comparison number, you have to know what the other system(s) is(are) using for write percent and block size.

It's best to capture performance data from the hosts and use that as the IO characteristics to then feed to something like NinjaStars.

And finally, read https://recoverymonkey.org/2017/11/03/why-it-is-incorrect-to-use-average-block-size-for-storage-performance-benchmarking/
Then read it again...