Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

Calculate a maintenance window duration for update Deprecated

Deprecation notice

The maintenance window duration calculator is deprecated. Starting from MOSK 25.1, cloud operators should use the ClusterUpdatePlan API instead. For details, refer to ClusterUpdatePlan resource.

This section provides an online calculator for quick calculation of the approximate time required to update your MOSK cluster that uses Open vSwitch as a networking backend.

Additionally, for a more accurate calculation, consider any cluster-specific factors that can have a large impact on the update time in some edge cases, such as number of routers, frequency of CPU, and so on.

Number of virtual machines per compute node:

Number of OpenStack compute nodes:

Number of OpenStack gateway nodes:

Number of Kubernetes control plane nodes:

Number of Kubernetes worker nodes except Kubernetes control plane nodes under the Kubernetes worker role:

Boolean, 1 to include or 0 to skip nodes restart:

Total number of nodes in Ceph cluster:

Number of Ceph monitor nodes:

Number of Ceph manager nodes:

Number of Ceph OSD:

Calculate