Gluster users - Feb 2016 - Website storage recommendations

Hi guys,

I need to build a backend storage for the website hosting. Storage needs to
be highly available and easily expandable. I have 5 servers with 300GB
disks for that purpose. I would like to create volume replicated with a
100GB of size. I want the configuration which will accept 2 boxes being
down at the same time without losing any data.

Can you please suggest what is the desired configuration of the brick in
that case ?

I have seen some posts here on the group where people mentioned something
that some replica configurations works in expected - from gluster point of
view - way but unexpected - from the user point of view - where you lose
one box and the volume goes RO. I want to avoid that situation.

I also want to use FUSE driver and configure it in the way that clients
will be able to access all 5 servers at the same time.

Thank you in advance for your help.

Regards,
TH
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You can survive loosing 2 servers out of 5 by using disperse volumes
with 3+2 configuration. But in your case, web hosting, with lots of
small files and random read/write it is not recommended.
Maybe you can test the workload and give it a try. Other than disperse
volumes I don't know a solution that will handle failure of 2 out of 5
servers.



On Tue, Feb 16, 2016 at 11:57 PM, Thorvald Hallvardsson
<thorvald.hallvardsson at gmail.com> wrote:
> Hi guys,
>
> I need to build a backend storage for the website hosting. Storage needs to
> be highly available and easily expandable. I have 5 servers with 300GB
disks
> for that purpose. I would like to create volume replicated with a 100GB of
> size. I want the configuration which will accept 2 boxes being down at the
> same time without losing any data.
>
> Can you please suggest what is the desired configuration of the brick in
> that case ?
>
> I have seen some posts here on the group where people mentioned something
> that some replica configurations works in expected - from gluster point of
> view - way but unexpected - from the user point of view - where you lose
one
> box and the volume goes RO. I want to avoid that situation.
>
> I also want to use FUSE driver and configure it in the way that clients
will
> be able to access all 5 servers at the same time.
>
> Thank you in advance for your help.
>
> Regards,
> TH
>
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