Nikola,

Can you please provide more information on which of these are identified to be 
gluster servers ( exporting backend data volumes ) and which one of these are 
client nodes ( mounting volumes exported by gluster servers ). The gluster 
clients where the mounts are done are usually application servers.

Also tell us more about whether you want replication or not for your data. You 
can take three servers and put  together in a distribute or 
distribute-replicate config and mount on the fourth server using all IB.

Or you would provide failover for the mount and have two servers and two 
clients and still use distribute-replicate.

If the client is a node outside of these 4 nodes and use TCP, then the 
glusterfs server has to export data using tcp protocol and not IB since the 
client is using TCP.

The server can export using both tcp and ib - that is the example you pointed 
to.

Since the glusterfs servers dont talk to each other, if you are planning on 
using all 4 machines as servers, their IB connection to each other is a waste, 
unless there is other data, outside of glusterfs, that you want to move around 
between them. Might as well use that to connect to some of the clients which 
are going to run important application servers ( just a suggestion ).

Feel free to ask more questions.

Regards,
Tejas.


----- Original Message -----
From: "Nikola Garafolic" <[email protected]>
To: [email protected]
Sent: Thursday, March 25, 2010 3:23:01 PM GMT +05:30 Chennai, Kolkata, Mumbai, 
New Delhi
Subject: Re: [Gluster-users] Mixing transport-types?

Browsing mail archives, I found this: 
http://gluster.org/pipermail/gluster-users/2010-February/003862.html

So, if I use both infiniband and gigE for all gluster storage nodes, 
does that mean that gluster storage nodes will work via infiniband and 
that client will access gluster via tcp?

It sounds confusing, but I dont see any other use for setting both 
infiniband and tcp on gluster storage node.

Regards,
Nikola

Nikola Garafolic wrote:
> Hi,
> 
> Can transport types be mixed in gluster version 3.0.3?
> 
> For example, I have 4 nodes connected with inifiniband, and I would 
> access them from node without infiniband, so via tcp. Can that be done 
> or do I have to use nfs?
> 
> Also, can transport types be mixed between nodes/bricks?
> 
> Regards,
> Nikola
> _______________________________________________
> Gluster-users mailing list
> [email protected]
> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users

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