Re: [Gluster-devel] Is it possible to setup a RAID 6 using GlusterFS?

[Xavier Hernandez]

For now there isn't any public site with more information. We will publish it here when it will be available.

There are still some things to work out, but I'll be glad to answer any questions you may have.

Xavi

On 30.03.2012 09:58, Pascal wrote:

> Hello Xavier,
>
> it sounds pretty interesting to me. 
> Will you publish any news on this mailing list or is there another
> place where I can update my self about your progress?
>
> Am Fri, 30 Mar 2012 08:33:37 +0200
> schrieb Xavier Hernandez
> <address@hidden>:
> > Sorry, the previous message was intended for Pascal. Xavi On 30.03.2012 08:29, Xavier Hernandez wrote:
> > > Hello David, we
> > aren't the core developers of GlusterFS, but we are developing a new translator that will be able to implement something similar to a RAID6. In fact it will be able to have a configurable level of redundacy. A redundancy of 1 is equivalent to RAID 5; a redundancy of 2 is equivalent to RAID 6; and higher levels of redundancy are supported.
> > > We are
> > also trying to improve performance over replicate by using a new contention detection and locking mecanism, but no promises about that yet.
> > > We plan to begin internal tests soon. When we consider it
> > stable, we will release a first beta.
> > > Xavi On 29.03.2012
> > 17:14, Pascal wrote:
> > > > Am Thu, 29 Mar 2012 11:02:38 -0400
> > schrieb David Coulson <address@hidden>:
> > > > Sorry for
> > confusion, I understood you wrong in the first place. Now I
> > > > guess I
> > know what you mean and I will think about it.
> > > > Are there more
> > suggestions or official plans from the GlusterFS
> > > > developers?
> > 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<address@hidden[6]>: 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[5]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 [1], http://www.gluster.org/community/documentation/index.ph/Talk:GlusterFS_Roadmap_Suggestions [2]). 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 _______________________________________________ Gluster-devel mailing list address@hidden [3] https://lists.nongnu.org/mailman/listinfo/gluster-devel[4]_______________________________________________ Gluster-devel mailing list address@hidden [7] https://lists.nongnu.org/mailman/listinfo/gluster-devel[8]_______________________________________________
> > > > Gluster-devel mailing
> > list
> > > > address@hidden
> > https://lists.nongnu.org/mailman/listinfo/gluster-devel Links: ------ [1] http://gluster.org/pipermail/gluster-users/2009-May/002208.html [2] http://www.gluster.org/community/documentation/index.ph/Talk:GlusterFS_Roadmap_Suggestions [3] mailto:address@hidden [4] https://lists.nongnu.org/mailman/listinfo/gluster-devel [5] http://download.gluster.com/pub/gluster/glusterfs/3.2/Documentation/AG/html/sect-Administration_Guide--Setting_Volumes-Distributed_Replicated.html [6] mailto:address@hidden [7] mailto:address@hidden [8] https://lists.nongnu.org/mailman/listinfo/gluster-devel
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