Nominal latency for a Powerstore 3000t?

Question

I have a Powerstore 3000t NVMe storage array and I'm having some latency issues (getting hit with 100+ latency on some occasions). Normally it's operating between 0 and 5 ms.

I'm curious though, my research suggests an all NVMe based storage array should be operating with latencies in the microseconds, not milliseconds.

So that leads me to ask, for a Powerstore 3000t NVMe, are millisecond latencies normal? Why would they be so high?

I'm wondering if I just have a misconception of the capabilities of this array or if I have an actual problem somewhere within the environment causing this.

DELL-Josh Cr · Answer

Hi.

Thank you for your question.

It might be an issue, or it could be something with the environment. It is recommended to go to the latest version as it had performance improvements. You may want to open a case with phone support to go through the performance metrics.

Let us know if there is anything else we can assist you with.

Thanks,

Josh

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mcdonamw_ews · Answer

What leads you to that conclusion? Are you confirming these latencies are not normal for a 3000t?  I am working with support but it's been a terrible process so far.  Such lack of response time.

DELL-Josh Cr · Answer

This article has some screenshots of drive latency. PowerStore: Deduplication ratio causes back-end latency | Dell US and like you said originally in the microseconds.

mcdonamw_ews · Answer

Apparently I don't have permissions to see KB articles so I cannot review that.

DELL-Josh Cr · Answer

PowerStore

Nominal latency for a Powerstore 3000t?

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