Ceph Cheat Sheet Edit Cheat Sheet

ceph-volume lvm list

ceph status
ceph health

ceph osd lspools

apt install cephadm 
cephadm add-repo --release pacific
cephadm install ceph-common

cephadm bootstrap --mon-ip 11.232.9.102
ceph orch host add <node>
ceph orch apply mon <nodes>

ceph orch apply osd --all-available-devices       # Create OSD from all available disks
ceph orch daemon add osd host1:/dev/sdb           # Add a specific disk

ceph orch host ls
ceph orch device ls

cephadm ls                                      # List known services

ceph log last cephadm                           # Log of latest actions

ceph-deploy new <nodes>                         # Create new cluster    
ceph-deploy install --release luminous <nodes>  # Install release

ceph-deploy mon create-initial                  # Deploy initial monitors

ceph-deploy admin <nodes>                       # Deploy admin nodes
ceph-deploy mds create <nodes>                  # Deploy metadata nodes
ceph-deploy mgr create <node>                   # Deploy manager
ceph mgr module enable dashboard                # Start dashboard on mgr node :7000

ceph-deploy purge <node>                        # Kill broken nodes
ceph-deploy purge-data <node>                   # Drop data
 
 
ceph-deploy osd create --data <device> <node>   # Create object storage

# Create a CephFS pool
ceph osd pool create cephfs_data 64
ceph osd pool create cephfs_metadata 64
ceph fs new cephfs cephfs_metadata cephfs_data
 
ceph auth get-key client.admin                     # Create client secret