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Hi @Guest ! Nice to meet you. I'm Jayanth, the PM for Kubernetes at Instana. We now support this and we're working on improving the overall user experience.
So, all important PVC/PV metrics are present under Hosts.
Infrastructure UI:
The first way to find these metrics are going to the Infrastructure > Analyze Infrastructure UI. Here, you click on Hosts.
Now, you can filter for Kubernetes Persistent Volume or Claim. And you'll see a bunch of different metrics available:
This has free disk space, used disk percentage, and capacity which should give you the info you're looking for.
Dashboards:
In the same way, you can add them to a dashboard:
As you can see, I don't have these metrics in my account but they should be present similar to what you see in the screenshot above. You select infrastructure & platforms, the relevant metric from the list seen above, and then filter for a specific PV/PVC.
Alerting:
This is also possible using Smart Alerts. You can access this by going to Infrastructure > Smart Alerts (it's a tab). Once you're on that page, you click on Add Smart Alert in the bottom right corner. And pretty much follow the same steps as seen above to find the relevant metrics. See the Smart Alert documentation.
Can you let me know if this doesn't solve your use case? You may need to have a feature flag enabled to get some of this functionality so let me know if you don't see it.
This is highly dependent on the storage driver used in Kubernetes. Not all of them provide the information.