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<pre>Sorry, the previous message was intended for Pascal.</pre>
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<pre>Xavi</pre>
<p>On 30.03.2012 08:29, Xavier Hernandez wrote:</p>
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<pre>Hello David,</pre>
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<pre>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.</pre>
<pre> </pre>
<pre>We are also trying to improve performance over replicate by using a new contention detection and locking mecanism, but no promises about that yet.</pre>
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<pre>We plan to begin internal tests soon. When we consider it stable, we will release a first beta.</pre>
<pre> </pre>
<pre>Xavi</pre>
<p>On 29.03.2012 17:14, Pascal wrote:</p>
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<pre>Am Thu, 29 Mar 2012 11:02:38 -0400
schrieb David Coulson <<a href="mailto:david@davidcoulson.net">david@davidcoulson.net</a>>:
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?</pre>
<blockquote style="padding-left: 5px; border-left: #1010ff 2px solid; margin-left: 5px; width: 100%;">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:
<blockquote style="padding-left: 5px; border-left: #1010ff 2px solid; margin-left: 5px; width: 100%;">Am Thu, 29 Mar 2012 10:47:38 -0400 schrieb David Coulson<<a href="mailto:david@davidcoulson.net">david@davidcoulson.net</a>>: 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.
<blockquote style="padding-left: 5px; border-left: #1010ff 2px solid; margin-left: 5px; width: 100%;">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. <a href="http://download.gluster.com/pub/gluster/glusterfs/3.2/Documentation/AG/html/sect-Administration_Guide--Setting_Volumes-Distributed_Replicated.html">http://download.gluster.com/pub/gluster/glusterfs/3.2/Documentation/AG/html/sect-Administration_Guide--Setting_Volumes-Distributed_Replicated.html</a>On 3/29/12 10:39 AM, Pascal wrote:
<blockquote style="padding-left: 5px; border-left: #1010ff 2px solid; margin-left: 5px; width: 100%;">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 (<a href="http://gluster.org/pipermail/gluster-users/2009-May/002208.html">http://gluster.org/pipermail/gluster-users/2009-May/002208.html</a>, <a href="http://www.gluster.org/community/documentation/index.ph/Talk:GlusterFS_Roadmap_Suggestions">http://www.gluster.org/community/documentation/index.ph/Talk:GlusterFS_Roadmap_Suggestions</a>). 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 <a href="mailto:Gluster-devel@nongnu.org">Gluster-devel@nongnu.org</a> <a href="https://lists.nongnu.org/mailman/listinfo/gluster-devel">https://lists.nongnu.org/mailman/listinfo/gluster-devel</a></blockquote>
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