Managed Kubernetes disks
Managed Kubernetes uses local and network disks of the cloud platform.
You can use local and network volumes in a Managed Kubernetes cluster as boot disk and for data storage.
When choosing a disk, consider specifics of using local and network volumes in Kubernetes.
Using network and local disks in Kubernetes
Boot disks
Boot (system) disks are used to start and initialize the operating system and applications in Kubernetes containers.
You can use local and network disks of the cloud platform as boot disks.
You select the boot disk when you create the cluster and cannot change it after the cluster is created.
When reinstalling node, all data on boot disks is deleted.
The nodes are being reinstalled:
- at upgrade minor cluster version;
- reinstall nodes manually;
- auto-upgrade patch versions;
- auto-reinstall nodes.
Storage disks
To store data in Managed Kubernetes clusters, we recommend using PersistentVolumes (PV) on network volumes.
If you installed the CSI driver yourself and created a PV on the local disk, the data will be deleted when you delete the node.