finding max latency

[proud owl]

Hi team,

We can see average latency is there any way I can look for maximum latency

[true frigate]

hi @proud owl which metric(s) are you interested in seeing maximums for?

[proud owl]

Hi @true frigate thank you I’m as of now more into seeing read/write/IO size and QoS

For volumes

[true frigate]

We can check if you share the metric name from the list of metics that Harvest collects https://netapp.github.io/harvest/nightly/ontap-metrics/ or if you let us know which dashboard panel, for example:

[proud owl]

Hi @true frigate I’m more interested into read and write latency of volumes

[proud owl]

If you can help @true frigate

[true frigate]

Thanks @proud owl , depending on what version of Grafana you are using, you can click on the table and sort by max.

Does that solve your usecase? Or perhaps your question is about why is this metric called volume_avg_latency instead of volume_total_latency? I'm not 100% sure why ONTAP named it avg_latency but I think it's because that value is derived from ONTAP like so: ((read ops * read latency) + (write ops * write latency) + (other ops * other latency)) / (read ops + write ops + other ops). That might be a good question to ask in #1063542514780475493 either way, that's the value that ONTAP provides and the description ONTAP provides is "Average latency in microseconds for the WAFL filesystem to process all the operations on the volume; not including request processing or network
communication time"

[proud owl]

Thanks a lot but I have one question I only see latency for one volume for others I see 0 under the min max and average , is it something missing ?

[true frigate]

That will be controlled by what you have selected at the top of the dashboard. What do your filters look like at the top?