[Gluster-users] 2 Replicas on 3 servers

[Joe Julian]

No. Your brick count must be a multiple of your replica count. 

In the case of replica 2 volumes, each pair of bricks, in the order defined at volume creation, make a replicated subvolume to the distribute translator.

Chris Clarke <cclarke at centiq.co.uk> wrote:
>Hi,
>
>I've seen the other post recently on 3 servers and 2 replicas, but it
>doesn't answer the essential point of whether you can have a replica of
>2
>with 3 servers if those servers have 1 brick on each server.
>
>I'm looking to replicate the behaviour of an IBM GPFS filesystem, where
>I
>have a 3 node cluster with a replication factor of 2.  As GPFS is block
>based, then each block of data is stored on two of the 3 servers, i.e.
>block 1 may be on server 1 and 3, block 2 may be on server 1 and 2,
>block 3
>may be on 2 and 3...
>
>Is it possible to do a similar thing with Gluster?  I'd also love it to
>be
>possible to extend the filesystem by adding extra servers and being
>able to
>rebalance the file's distribution across them, but keeping the
>replication
>factor of 2, so I can always stand the loss of a single node without
>data
>loss.
>
>Is any of this achievable?
>
>Thanks
>
>Chris
>
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