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:orphan:
=======================================================
ceph-volume-systemd -- systemd ceph-volume helper tool
=======================================================
.. program:: ceph-volume-systemd
Synopsis
========
| **ceph-volume-systemd** *systemd instance name*
Description
===========
:program:`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.
Examples
========
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::
/usr/bin/ceph-volume-systemd lvm-0-8715BEB4-15C5-49DE-BA6F-401086EC7B41
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.
Availability
============
:program:`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.
See also
========
:doc:`ceph-osd <ceph-osd>`\(8),
|
