Disk partitioning in a Managed Kubernetes cluster on dedicated servers

In a Managed Kubernetes cluster, the highest performing disk is allocated on the dedicated servers. The disks are in order from the highest performing to the lowest performing: NVMe SSD ⟶ SATA SSD ⟶ HDD.

By default, the /boot, /root, and /storage partitions are allocated.

You can only change the disk partitioning when creating a cluster. You can discard the /storage partition and resize the /root partition. The list of partitions and information about their default size and value limits can be found in the table Disk partitions and their size.

In an existing cluster, you can view the disk partitioning in the control panel: in the top menu, click Products and select Managed Kubernetes → cluster page → Cluster Composition tab → click on the node name → Operating System tab → Partitioning field.

Disk partitions and their size⁠

	Default size	Minimum size	Maximum size
/boot	1 GB	1 GB*	1 GB*
/root	100 GB.	30 GB.	Calculated by the formula: disk size — 1 GB of /boot partition — 1 GB of /storage partition
/storage	Calculated by the formula: disk size — 1 GB of /boot partition — 100 GB of /storage partition	1 GB	Calculated by the formula: disk size — size of /root partition — 1 GB of /boot partition

* The size of the /boot partition cannot be changed.