Management cluster storage¶
The management cluster requires minimum three storage devices per node. Each device is used for different type of storage:
One storage device for boot partitions and root file system. SSD is recommended. A RAID device is not supported.
One storage device per server is reserved for local persistent volumes. These volumes are served by the Local Storage Static Provisioner, that is
local-volume-provisioner, and used by many services of Mirantis Container Cloud.
At least one disk per server must be configured as a device managed by a Ceph OSD.
The minimal recommended number of Ceph OSDs for management cluster is 2 OSDs per node, to the total of 6 OSDs.
The recommended replication factor is 3, which ensures that no data is lost if any single node of the management cluster fails.
You can configure host storage devices using