== TM MooseFS == 

---- dataentry addon ----
name               : opennebula-tm-moosefs
url_url            : https://github.com/libersoft/opennebula-tm-moosefs/
brief description  : A new transfer manager for using MooseFS as backend storage
type               : Extension
license            : Apache 2.0
opennebula version : 2.x
author             : Giovanni Toraldo
email              : gt at libersoft dot it 
organization_img100 : {{ software:ecosystem:libersoft.jpg }}
keyword_tags       : dfs, moosefs, tm
last update_dt     : 2011-04-18
----

== Description ==

A transfer manager for using MooseFS (http://www.moosefs.org/) as a backend storage.

MooseFS is a fault tolerant, network distributed file system. It spreads data over several physical servers which are visible to the user as one resource.

== Benefits ==

With MooseFS as backend storage you can achieve shared storage for your OpenNebula hosts without using expensive NAS/SAN dedicated hardware server, but cheap hard drives instead, ensuring fault-tolerance in case of failure with data replication across many nodes.

== Requirements ==

A working MooseFS volume mounted on every OpenNebula host under the same folder (ex: /srv/vms)

How to Configure MooseFS: http://www.moosefs.org/reference-guide.html

== Configuration ==

Download package from https://github.com/libersoft/opennebula-tm-moosefs/tarball/master

Unpack the folder `tm_moosefs` in `/etc/one` or `$ONE_LOCATION/etc`

Unpack the folder `tm_commands/moosefs` in `/usr/lib/one/tm_commands` or `$ONE_LOCATION/lib/tm_commands`

Adjust some oned.conf parameters:
<code>
   VM_DIR=/srv/vms/deploy
   IMAGE_REPOSITORY_PATH = /srv/vms/images
   TM_MAD = [
       name       = "tm_moosefs",
       executable = "one_tm",
       arguments  = "tm_moosefs/tm_moosefs.conf" ]
</code>

Configure nebula host to use the new transfer manager:
<code>   onehost create host01 im_kvm vmm_kvm tm_moosefs</code>

If you move your `/var/lib/one` inside moosefs (ex: `/srv/vms/one`) and
symlink it back, you can easily achieve database replication with sqlite
for easy frontend switching:
<code>mv /var/lib/one /srv/vms/one
ln -s /srv/vms/one /var/lib/one</code>