[Gluster-users] adding a node

Pierre Léonard pleonard at jouy.inra.fr
Mon Mar 16 16:30:04 UTC 2015


Hi,
> Hi,
>
> OK, I was confused because in your original email you mentioned "a
> multiple of the striped so 4 other node".
>
> So yes your stripe count is 2, so you have to add bricks 2 by 2, as the
> error message says. If you didn't, then it would mean that you would
> distribute your data over two 2-brick stripes, and one 1-brick single
> volume, which I am reasonably sure wouldn't work.
>
> If you want to be able to add bricks one by one, you would need a
> regular distributed volume, without:
> - striping (requires adding as many drives as stripe count)
> - replication (requires adding as many drives as stripe replication count)
> - dispersion (requires adding as many drives as whatever your dispersion
> disk count is)
>
> The only two things that you can extend is the number of brick groups in
> a distributed volume, with a similar brick group, or the number of
> replicas (but I'm sure that there are corner cases where you can't do
> it, I haven't tried them yet).
>
> Is that clearer now?
Yes.
So I have to find another node, or maybe is it possible to create a 
second brick on the new node ?

Many Thank's.

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*Pierre Léonard*
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