Load the persistent partition info from the config directory.

populates a partition scheme entry for an OSD where all its partitions are collocated on a single device.

populates a partition scheme entry for an OSD that will have distributed partitions: its metadata will live on a dedicated metadata device and its block data will live on a dedicated device.

represents a dedicated metadata device and all of the partitions stored on it.

represents a specific partition on a metadata device, including details about which OSD it belongs to.

top level representation of an overall performance oriented partition scheme, with a dedicated metadata device and entries for all OSDs that define where their partitions live.

represents an OSD and details about all of its partitions.

details for 1 OSD partition.