topic Re: nfs_write_latency, how high is high in ONTAP Discussions

nfs_write_latency, how high is high

dragontiger — Wed, 04 Jun 2025 23:56:23 GMT

statistics show-periodic -object volume -instance volume_name -counter nfs_write_latency

I am running this command on volumes, and got different values, from 0 us to a few hundreds,

How high it is too high, Anybody please let me know your measurement? Thanks!

Re: nfs_write_latency, how high is high

deepuj — Wed, 01 Jul 2015 07:36:41 GMT

Hi,

How high is too high: this depends on the application hosted on the particular nfs volume, and how much load is there from other volume on the controller.

In your case, I see sub milli second write latency which is fairly good for NFS volumes.Values lesser than 5 ms is ideally good.

Thanks

Re: nfs_write_latency, how high is high

dragontiger — Wed, 01 Jul 2015 10:31:54 GMT

Less than 5 ms (millisecond) on a VOLUME is good? are you sure?

we have 0 - hundreds us (microsecond), the maximum one is 1400 us, but the performace is terrible.

How to explain this?

Re: nfs_write_latency, how high is high

deepuj — Wed, 01 Jul 2015 10:54:44 GMT

Hi,

0 to hundreds of micro seconds (Less than 1 ms) is ideally good, but again, depends on your workload.

I would stongly recommend you to open a support ticket to address this issue related to performance.

Thanks