Not following. If you have a replica count of 3, you can lose two boxes
in that group and still have access to all your data. It's more like a
3-way RAID-1 than anything like RAID-6.
On 3/29/12 11:00 AM, Pascal wrote:
Am Thu, 29 Mar 2012 10:47:38 -0400
schrieb David Coulson<david@xxxxxxxxxxxxxxxx>:
Hello David,
thanks for your quick reply. I already considered a replica count of 3
(and six servers at all, correct?), but the problem would still be that
two hard drives from the same "replica group" were not allowed to fail
at the same time.
Try doing a distributed-replica with a replica count of 3. Not really
'RAID-6' comparable, but you can have two nodes fail without outage.
http://download.gluster.com/pub/gluster/glusterfs/3.2/Documentation/AG/html/sect-Administration_Guide--Setting_Volumes-Distributed_Replicated.html
On 3/29/12 10:39 AM, Pascal wrote:
Hello everyone,
I would like to know if it is possible to setup a GlusterFS
installation which is comparable to a RAID 6? I did some research in
the community and several mailing lists and all I could find were
the similar request from 2009
(http://gluster.org/pipermail/gluster-users/2009-May/002208.html,
http://www.gluster.org/community/documentation/index.ph/Talk:GlusterFS_Roadmap_Suggestions).
I would just like to have a scenario where two GlusterFS
nodes/servers, respectively their hard drives, could fail at the
same time.
Thanks in advance!
Pascal
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