ceph-volume-systemd systemd instance name
ceph-volume-systemd is a systemd helper tool that receives input from (dynamically created) systemd units so that activation of OSDs can proceed.
It translates the input into a system call to ceph-volume for activation purposes only.
Its input is the systemd instance name (represented by %i in a systemd unit), and it should be in the following format:
<ceph-volume subcommand>-<extra metadata>
In the case of lvm a call could look like:
Which in turn will call ceph-volume in the following way:
ceph-volume lvm trigger 0-8715BEB4-15C5-49DE-BA6F-401086EC7B41
Any other subcommand will need to have implemented a trigger command that can consume the extra metadata in this format.
ceph-volume-systemd is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the documentation at http://docs.ceph.com/ for more information.
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