mirror of
https://github.com/ceph/ceph
synced 2024-12-22 03:22:00 +00:00
33 lines
1.0 KiB
ReStructuredText
33 lines
1.0 KiB
ReStructuredText
.. _ceph-volume-simple:
|
|
|
|
``simple``
|
|
==========
|
|
Implements the functionality needed to manage OSDs from the ``simple`` subcommand:
|
|
``ceph-volume simple``
|
|
|
|
**Command Line Subcommands**
|
|
|
|
* :ref:`ceph-volume-simple-scan`
|
|
|
|
* :ref:`ceph-volume-simple-activate`
|
|
|
|
* :ref:`ceph-volume-simple-systemd`
|
|
|
|
|
|
By *taking over* management, it disables all ``ceph-disk`` systemd units used
|
|
to trigger devices at startup, relying on basic (customizable) JSON
|
|
configuration and systemd for starting up OSDs.
|
|
|
|
This process involves two steps:
|
|
|
|
#. :ref:`Scan <ceph-volume-simple-scan>` the running OSD or the data device
|
|
#. :ref:`Activate <ceph-volume-simple-activate>` the scanned OSD
|
|
|
|
The scanning will infer everything that ``ceph-volume`` needs to start the OSD,
|
|
so that when activation is needed, the OSD can start normally without getting
|
|
interference from ``ceph-disk``.
|
|
|
|
As part of the activation process the systemd units for ``ceph-disk`` in charge
|
|
of reacting to ``udev`` events, are linked to ``/dev/null`` so that they are
|
|
fully inactive.
|