cephadm is a new function introduced in Ceph Octopus 15. It allows for an easier method to install and manage Ceph nodes.
The following sections include common examples:
On ncn-s001/2/3:
ncn-s00[123]# cephadm shell # creates a container with access to run ceph commands the traditional way
Optionally, execute the following command:
ncn-s00[123]# cephadm shell -- ceph -s
ceph-volumeThere are multiple ways to do Ceph device operations now.
cephadmcephadm ceph-volume
cephadm shellOptionally, this can be done by invoking a cephadm shell by appending a ceph command to the cephadm command.
cephadm shell -- ceph-volume
ceph orchOptionally, the following command will allow users to specify a single node name to just list that nodes drives.
On ncn-s001/2/3:
ceph orch device ls
ceph orch device ls <node name>