Xavier, this sounds cool. Please keep me and John Mark in the loop. We will make sure you are getting all the help you needed from Red Hat. -ab On Thu, Mar 29, 2012 at 11:29 PM, Xavier Hernandez <xhernandez@xxxxxxxxxx> 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 <david@xxxxxxxxxxxxxxxx>: > > 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<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.htmlOn > 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 _______________________________________________ > Gluster-devel mailing list Gluster-devel@xxxxxxxxxx > https://lists.nongnu.org/mailman/listinfo/gluster-devel > > _______________________________________________ Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > https://lists.nongnu.org/mailman/listinfo/gluster-devel > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > https://lists.nongnu.org/mailman/listinfo/gluster-devel > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > https://lists.nongnu.org/mailman/listinfo/gluster-devel > -- Anand Babu Periasamy Blog [ http://www.unlocksmith.org ] Twitter [ http://twitter.com/abperiasamy ] Imagination is more important than knowledge --Albert Einstein
