mirror of
https://github.com/ceph/ceph
synced 2024-12-11 14:09:09 +00:00
36 lines
953 B
ReStructuredText
36 lines
953 B
ReStructuredText
==================
|
|
RBD Snapshotting
|
|
==================
|
|
One of the advanced features of RADOS block devices is that you can create
|
|
snapshots of the images to retain a history of an image's state. Ceph supports
|
|
RBD snapshots from the ``rbd`` command, from a kernel object, from a
|
|
KVM, and from cloud solutions. Once you create snapshots of an image, you
|
|
can rollback to a snapshot, list snapshots, remove snapshots and purge
|
|
the snapshots.
|
|
|
|
.. important:: To use use RBD snapshots, you must have a running Ceph cluster.
|
|
|
|
.. important:: Generally, you should stop i/o before snapshotting an image.
|
|
If the image contains a filesystem, the filesystem should be in a
|
|
consistent state before snapshotting too.
|
|
|
|
|
|
Create Snapshot
|
|
---------------
|
|
<placeholder>
|
|
|
|
You can take snapshots of RBD images.
|
|
|
|
List Snapshots
|
|
--------------
|
|
<placeholder>
|
|
|
|
|
|
Rollback Snapshot
|
|
-----------------
|
|
<placeholder>
|
|
|
|
|
|
Delete a Snapshot
|
|
-----------------
|
|
<placeholder> |