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Configure Ceph disks in a host profile

This section describes how to configure devices for the Ceph cluster in the BareMetalHostProfile object of a MOSK cluster.

To configure disks for a Ceph cluster:

  1. Open the BareMetalHostProfile object of a MOSK cluster for editing.

  2. In the spec.devices section, add each disk intended for use as a Ceph OSD data device with size: 0 and wipe: true.

    Example configuration for sde - sdh disks to use as Ceph OSDs:

    spec:
  devices:
  ...
  - device:
      byPath: /dev/disk/by-path/pci-0000:00:05.0-scsi-0:0:0:1
      size: 0
      wipe: true
  - device:
      byPath: /dev/disk/by-path/pci-0000:00:05.0-scsi-0:0:0:2
      size: 0
      wipe: true
  - device:
      byPath: /dev/disk/by-path/pci-0000:00:05.0-scsi-0:0:0:3
      size: 0
      wipe: true
  - device:
      byPath: /dev/disk/by-path/pci-0000:00:05.0-scsi-0:0:0:4
      size: 0
      wipe: true

  3. If you plan to use a separate metadata device for Ceph OSD, configure the spec.devices section as described in Configure a separate metadata device for Ceph OSD.

    Important

    Mirantis highly recommends configuring disk partitions for Ceph OSD metadata using BareMetalHostProfile.