Difference between revisions of "Fs-gluster"

__NOTOC__

= GlusterFS =

Facilitates distributed filesystems across the network, it runs on user space.

=== How to replicate a filesystem across two storage servers ===

The input file must be from any mount point in the client side, from there the data is split up and send to each storage server.

'''Server side'''

<pre><nowiki>

# file: /etc/glusterfs/glusterfsd.vol

volume posix

type storage/posix

option directory /data/export

end-volume

volume locks

type features/locks

subvolumes posix

end-volume

volume brick

type performance/io-threads

option thread-count 8

subvolumes locks

end-volume

volume server

type protocol/server

option transport-type tcp

option auth.addr.brick.allow *

subvolumes brick

end-volume

</nowiki></pre>

'''Client side'''

<pre><nowiki>

# file: /etc/glusterfs/glusterfs.vol

volume remote1

type protocol/client

option transport-type tcp

option remote-host storage1.example.com

option remote-subvolume brick

end-volume

volume remote2

type protocol/client

option transport-type tcp

option remote-host storage2.example.com

option remote-subvolume brick

end-volume

volume replicate

type cluster/replicate

subvolumes remote1 remote2

end-volume

volume writebehind

type performance/write-behind

option window-size 1MB

subvolumes replicate

end-volume

volume cache

type performance/io-cache

option cache-size 512MB

subvolumes writebehind

end-volume

</nowiki></pre>

The fstab entry for glusterfs client must be:

<pre><nowiki>

/etc/glusterfs/glusterfs.vol /dest/folder glusterfs defaults 0 0

</nowiki></pre>