We are happy to announce, that PVC (Persistent Volume Claim) monitoring is becoming a built-in feature of our product. Previously, PVC monitoring was based on custom metric, and hence subject to additional licensing. With this change, PVC monitoring becomes part of your existing license, meaning there won't be any additional charges for using it. Going forward, we will also enable this feature for everyone per default.
I'm already using PVC monitoring today. Is there anything I need to do?
The integrated PVC monitoring will replace the current set of custom metrics with new built-in metrics. The assets provided by Dynatrace for PVC monitoring will be automatically updated by us. Specifically, the built-in anomaly detection for PVCs will automatically utilize the new metrics with version 1.294. For the PVC dashboard, we will deprecate the existing extensions, and ship an updated dashboard, based on the new metrics, as a built-in dashboard of Dynatrace.
If you are using today`s PVC metrics in any custom dashboard, metric event, or SLO, you need to manually migrate these assets by following the guide below.
Prerequisites
- Kubernetes monitoring
- ActiveGate version 1.289+
- New Kubernetes experience (for using the metrics in the platform, e.g. querying them in a notebook)
Which metrics are affected
The affected metrics are the ones that are written upon enabling the PVC toggle in the monitoring settings of a Kubernetes cluster. Following table shows which metrics are affected and by which metric they are replaced:
Deprecated metric key (Decommission: Dynatrace 1.296) | 1. Dynatrace Classic - New metric key (Kubernetes classic, Dashboards Classic, Data explorer, Metrics, ...) 2. Dynatrace Platform/Grail - New metric key* (Kubernetes, Dashboards, Notebooks, ...) | New metric name |
kubelet_volume_stats_available_bytes |
| Kubernetes: Volume available bytes |
kubelet_volume_stats_capacity_bytes |
| Kubernetes: Volume capacity |
kubelet_volume_stats_used_bytes |
| Kubernetes: Volume used bytes |
* Using the new PVC metrics in the platform requires the new Kubernetes experience.
How to get the new metrics
The new metrics will be written with updating your ActiveGates to version 1.289+. They are written per default, and are independent of the PVC toggle. The PVC toggle only switches writing of the deprecated PVC metrics.
How to successfully migrate to the new metrics
As there is no straight forward migration from an old metric to a new metric, we can't automatically migrate your custom dashboards, custom events for alerting, SLOs, or any other tool that utilizes our API to access these metrics.
To minimize the effort on your side, we offer a web application, called Metric Audit Report, guiding you through this process. So please make sure to update your ActiveGates to 1.289+, when this version becomes available for you and migrate your assets until Dynatrace 1.296 is released.
Deprecation: What happens to the old metrics?
They will still be written if the PVC toggle is enabled until Dynatrace 1.296. With Dynatrace 1.296 their decommission is planned. The PVC toggle will be no longer available.
For troubleshooting steps, see the article: Troubleshooting PVC not showing data.
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