[Gluster-users] RAID on GLUSTER node

[Pranith Kumar Karampuri]

On 01/12/2016 04:34 AM, Pawan Devaiah wrote:
> Hi All,
>
> We have a fairly powerful server sitting at office with 128 Gig RAM 
> and 36 X 4 TB drives. I am planning to utilize this server as a 
> backend storage with GlusterFS on it.
> I have been doing lot of reading on Glusterfs, but I do not see any 
> definite recommendation on having RAID on GLUSTER nodes.
> Is it recommended to have RAID on GLUSTER nodes specially for the bricks?
> If Yes, is it not contrary to the latest Erasure code implemented in 
> Gluster or is it still not ready for production environment?
> I am happy to implement RAID but my two main concern are
> 1. I want to make most of the disk space available.
> 2. I am also concerned about the rebuild time after disk failure on 
> the RAID.
What is the workload you have?

We found in our testing that random read/write workload with Erasure 
coded volumes is not as good as we get with replication. There are 
enhancements in progress at the moment to address these things which we 
are yet to merge and re-test.

Pranith
>
> Thanks
> Dev
>
>
>
>
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