[one-users] The joy of Gluster

[Javier Fontan]

Both system an images storage should be the same when using gluster driver.
Usually you can do this mounting the gluster storage somewhere in your
system, for example /glusterfs and then symlinking the datastore
directories, for example:

ln -s /glusterfs /var/lib/one/datastores/0
ln -s /glusterfs /var/lib/one/datastores/100

If you already have it mounted in the system datastore directory you can
also symlink from there:

ln -s /var/lib/one/datastores/0 /var/lib/one/datastores/100

Cheers

On Thu Dec 04 2014 at 1:21:12 PM Peter Harris <doilooksensible at gmail.com>
wrote:

> Hi
>
> I have just installed a test OpenNebula system to figure out how it all
> hangs together, and see if I can use it for our
> development/support/projects departments.
>
> I currently have:
> - on-ctrl
> 4Gb RAM
> 146Gb HD
> Centos 6.5
> OpenNebula 4.10.1, installed as per
> http://docs.opennebula.org/4.10/design_and_installation/building_your_cloud/ignc.html
> Gluster 3.5.2, with on-node1 gluster volume mounted on
> /var/lib/one/datastores/0 (with datasores/1 linked to datastores/1)
>
> -on-node1
> 16Gb RAM
> 500Gb HD
> 3TB HD, shared via gluster volume gv-storage, replicated on on-node2
> Centos 6.5
> OpenNebula 4.10.1, installed as per
> http://docs.opennebula.org/4.10/design_and_installation/building_your_cloud/ignc.html
> Gluster 3.5.2 configured as per
> http://docs.opennebula.org/4.10/administration/storage/gluster_ds.html,
> with on-node1 gluster volume mounted on /var/lib/one/datastores/0 (with
> datasores/1 linked to datastores/1)
>
> -on-node2
> 16Gb RAM
> 500Gb HD
> 3TB HD, shared via gluster volume gv-storage, replicated on on-node1
> Centos 6.5
> OpenNebula 4.10.1, installed as per
> http://docs.opennebula.org/4.10/design_and_installation/building_your_cloud/ignc.html
> Gluster 3.5.2 configured as per
> http://docs.opennebula.org/4.10/administration/storage/gluster_ds.html,
> with on-node2 gluster volume mounted on /var/lib/one/datastores/0 (with
> datasores/1 linked to datastores/1)
>
> Hopefully this is not a massively stupid configuration. I appreciated my
> shared filesystems should be on some form of SAN/NAS, but everything I have
> is begged, stolen or borrowed, and I have been given a smaller budget than
> normal (usually 0).
>
> My question is, if I follow
> http://docs.opennebula.org/4.10/administration/storage/gluster_ds.html,
> at the stage "Configuring GlusterFS Datastore", I create the ds.conf, set
> the correct GLUSTER_HOST (using the same port listed on the web page) and
> GLUSTER_VOLUME name.
>
> When I run onedatastore create and then onedatastore list, the new
> datastore, ID 100, shows as the same size as the datastore directory on the
> ctrl server
>  onedatastore list
>   ID NAME                SIZE AVAIL CLUSTER      IMAGES TYPE DS       TM
>    0 system                3T 95%   -                 0 sys  -
> shared
>    1 default               3T 95%   -                 0 img  fs
> shared
>    2 files                79G 95%   -                 0 fil  fs       ssh
>  100 glusterds            79G 95%   -                 0 img  fs
> shared
>
> I am confused, I was expecting glusterds to be the same as the 0 System /1
> default datastores. Do I actually need glusterds, or can I just go ahead
> and create my images on 1 default and have them used by the hosts (which
> have the gluster volume mounted on /var/lib/one/datastores/0 ).
>
> I have searched through the mail archive, and tried to follow what has
> been said there, but I still have a confused.
>
> Thanks in advance
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
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>
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