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GlusterFS Backend
-----------------
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:pve-toplevel:
:title: Storage: GlusterFS
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Storage pool type: `glusterfs`

GlusterFS is a salable network file system. The system uses a modular
design, runs on commodity hardware, and can provide a highly available
enterprise storage at low costs. Such system is capable of scaling to
several petabytes, and can handle thousands of clients.

NOTE: After a node/brick crash, GlusterFS does a full `rsync` to make
sure data is consistent. This can take a very long time with large
files, so this backend is not suitable to store large VM images.

Configuration
~~~~~~~~~~~~~

The backend supports all common storage properties, and adds the
following GlusterFS specific options:

`server`::

GlusterFS volfile server IP or DNS name.

`server2`::

Backup volfile server IP or DNS name.

`volume`::

GlusterFS Volume.

`transport`::

GlusterFS transport: `tcp`, `unix` or `rdma`


.Configuration Example (`/etc/pve/storage.cfg`)
----
glusterfs: Gluster
        server 10.2.3.4
        server2 10.2.3.5
	volume glustervol
	content images,iso
----


File naming conventions
~~~~~~~~~~~~~~~~~~~~~~~

The directory layout and the file naming conventions are inherited
from the `dir` backend.


Storage Features
~~~~~~~~~~~~~~~~

The storage provides a file level interface, but no native
snapshot/clone implementation.

.Storage features for backend `glusterfs`
[width="100%",cols="m,m,3*d",options="header"]
|==============================================================================
|Content types             |Image formats   |Shared |Snapshots |Clones
|images vztempl iso backup |raw qcow2 vmdk  |yes    |qcow2     |qcow2
|==============================================================================

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See Also
~~~~~~~~

* link:/wiki/Storage[Storage]

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