[Gluster-users] Interleave or not

[Raghavendra G]

Hi Nathan,

please find the inlined comments.

On Mon, Feb 23, 2009 at 7:30 PM, Nathan Stratton <nathan at robotics.net>wrote:

>
> Lets say you had 4 servers and you wanted to setup replicate and
> distribute. What methoid would be better:
>
> server  sdb1
> xen0    brick0
> xen1    mirror0
> xen2    brick1
> xen3    mirror1
>
> replicate       block0 - brick0 mirror0
> replicate       block1 - brick1 mirror1
> distribute      unify - block0 block1
>
> or
>
> server  sdb1    sdb2
> xen0    brick0  mirror3
> xen1    brick1  mirror0
> xen2    brick2  mirror1
> xen3    brick3  mirror2
>
> replicate       block0 - brick0 mirror0
> replicate       block1 - brick1 mirror1
> replicate       block2 - brick2 mirror2
> replicate       block3 - brick3 mirror3
> distribute      unify - block 1 block2 block3 block4


This configuration is better since the brick and mirror are on two different
disks (sdb1 and sdb2 respectively) and data can be still restored if one of
the disk fails.


>
>
>  <>
>>
> Nathan Stratton                                CTO, BlinkMind, Inc.
> nathan at robotics.net                         nathan at blinkmind.com
> http://www.robotics.net                        http://www.blinkmind.com
>
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>



-- 
Raghavendra G
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