Merge pull request #269530 from RepinStyle/repinstyle-ci-pv-limitations

Add Container Insights persistent volume limitations

Author: prmerger-automator[bot]

articles/azure-monitor/containers/container-insights-persistent-volumes.md

@@ -47,6 +47,11 @@ You can find an overview of persistent volume inventory in the **Persistent Volu
 ### Persistent Volume Usage recommended alert
 You can enable a recommended alert to alert you when average PV usage for a pod is above 80%. To learn more about alerting, see [Metric alert rules in Container insights (preview)](./container-insights-metric-alerts.md). To learn how to override the default threshold, see the [Configure alertable metrics in ConfigMaps](./container-insights-metric-alerts.md#configure-alertable-metrics-in-configmaps) section.
 
+## Limitations
+Persistent volumes where storage class is "azureblob-*" won't collect PV metrics due to a limitation in CAdvisor. The following command will show persistent volumes and their properties (including storage class). 
+ 
+```kubectl get pvc```
+
 ## Next steps
 
 To learn more about collected PV metrics, see [Configure agent data collection for Container insights](./container-insights-data-collection-configmap.md).