[Gluster-users] distribute-replicate with 3 storage node with different disk size

[Sharuzzaman Ahmat Raslan]

Seems that nobody is answering my concern :)

I think these post partially answer my question, but I think I still need
to perform the experiment to understand more:

http://gluster.org/pipermail/gluster-users/2011-February/006649.html
http://gluster.org/pipermail/gluster-users/2011-February/006642.html
http://review.gluster.com/#/c/158/
http://www.ashishnepal.com/glusterfs-centos/

Review-158 is the most detail info I found on the Internet, and did not
found it in any Gluster documentation.

Maybe I should start my own wiki collecting all the information found on
the Internet.

Thanks.






On Wed, Jan 8, 2014 at 10:48 AM, Sharuzzaman Ahmat Raslan <
sharuzzaman at gmail.com> wrote:

> Hi all,
>
> I have not tested this yet, but would like to get your comment.
>
> I have a customer that is currently running BackupPC system, and the local
> disk is steadily going to run out of space soon.
>
> So I'm thinking of helping this customer move the storage to gluster
>
> They have limited budget, so buying new machine with big disk is not an
> option. But, they have a couple of old machine available, and the disk size
> differs in each of them
>
> So, I'm planning to grow the storage slowly for them.
>
> The first step that I think is to get 2 replicated storage nodes, so that
> redundancy can be increased.
>
> Once that work, I'm planning to introduce another node to get a
> distributed-replicated system. This is the part that I'm not sure.
>
> Let say the customer have nodes like this:
> node1: 100GB (p1n1)
> node2: 200GB (p1n2,p2n2)
> node3: 300GB (p1n3)
>
> node1 is currently the single BackupPC storage. I can partition node2 to
> get a 100GB (p1n2), then join with node1 (p1n1) to get a replicated gluster
> storage.
>
> When I introduce node3 later, I plan to use the extra 100GB from node2
> (p2n2), to join with 100GB from node3 (p1n3). Now, I have 4 bricks defined.
> 1 brick in node1 (p1n1), 2 brick in node2 (p1n2,p2n2), and 1 brick in node3
> (p1n3).
>
> The question is, how to change from replicated system (p1n1-p1n2), to
> distributed-replicated [(p1n1-p1n2)(p2n2-p1n3)] in a running system?
>
> Ideas?
>
> Thanks.
>
>
> --
> Sharuzzaman Ahmat Raslan
>



-- 
Sharuzzaman Ahmat Raslan
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