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

[David Coulson]

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 at davidcoulson.net>:
>
> 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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>>> Gluster-devel at nongnu.org
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>
>
>
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