Request for Direct ONTAP API to Retrieve Performance Capacity Values

[patent pond]

Hi Team,

One of our customers is looking for an API that can provide performance capacity used and available values, similar to what we get using AIQUM. They have been using the AIQUM API to obtain performance capacity used values to determine the best node within a cluster for provisioning new volumes. Recently, they decided to decommission AIQUM and are now looking to extract the same performance capacity used values using a direct ONTAP API.

I was suggested to use the following REST APIs:

https://cluster_mgmt_ip/api/cluster/counter/tables/headroom_cpu/rows/{instance_id}
https://cluster_mgmt_ip/api/cluster/counter/tables/headroom_aggregate/rows/{instance_id_f}
However, the output does not provide performance capacity used details directly and seems to require some calculations. We are looking for the best way to use an API to determine the most suitable node based on performance for provisioning a new volume.

[elfin harness]

For awareness, UM hasn’t collect perf data from the cluster via API for years. It uses the perf archive that ONTAP caches. With it decoupled, the Rest API may not exist. I wonder if you can pull this information from ActiveIQ as it also receives and parses the perf archive file(s).
I can’t find a good link of info right now I’m afk/mobile.

[olive sable]

hi @patent pond Harvest collects metrics from those two objects https://github.com/NetApp/harvest/blob/main/conf/restperf/9.12.0/resource_headroom_aggr.yaml and https://github.com/NetApp/harvest/blob/main/conf/restperf/9.12.0/resource_headroom_cpu.yaml Do you know which metric you need from those objects? We have a headroom dashboard that visualizes many of the metrics from those two templates

[drifting viper]

@elfin harness Active IQ Digital Advisor only shows Average IOPS and Network Throughput at the cluster level. At the node level it can show CPU Utilization, Latency, IOPS, Protocol IOPS and Network Throughput.