Obtaining CPU utilization metrics after a VM instance has terminated?

Question

I'm using the Azure Monitor API to obtain CPU utilization metrics for VM instances. This is possible when a VM instance is running or stopped, but once an instance is terminated I'm unable to obtain historical CPU data because the resource is not found.

Is there a way of accessing historical CPU metrics after an instance has terminated?

(Use case: performing analytics on batch processing tasks, where VMs are started for a task, and terminated once the task is complete.)

Thanks for any help you can offer.

Answer 1

You can use a data ingestion service like log analytics - https://learn.microsoft.com/en-us/azure/azure-monitor/agents/log-analytics-agent#install-and-configure-agent
to collect performance data - https://learn.microsoft.com/en-us/azure/azure-monitor/agents/data-sources-performance-counters

This data can be retained for up to 2 years and you can query the logs even if the VMs are deleted.