Any way to collect historical data for NVRAM stats?

ACHOU_SIMG — Wed, 04 Jun 2025 18:07:49 GMT

Hi,

ONTAP 9.1RC1

AFF8040 HA

We have a Linux sever running SAS software and NFS mounts to the AFF for SAS data access. SAS software is heavy on sequential writes. I'd like to find out whether NVRAM keeps getting full when there is large amount of sequential writes thus gets flushed to SSDs so frequently that it acutally becomes a bottleneck. I can do ssysstat to get some NVRAM related realtime stats but is there a way to retrive historical data for such NVRAM stats? I don't see it's possible in Unified Manager.

Thanks,

Re: Any way to collect historical data for NVRAM stats?

ekashpureff — Fri, 02 Dec 2016 21:10:01 GMT

The 'statit' command will give you CP counters for the period of time you are running it ...

I hope this response has been helpful to you.

At your service,

Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, FastLane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)

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Any way to collect historical data for NVRAM stats?

Re: Any way to collect historical data for NVRAM stats?