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List:       gluster-devel
Subject:    [Gluster-devel] IB/RDMA Testing for 3.4
From:       rgowdapp () redhat ! com (Raghavendra Gowdappa)
Date:       2012-12-28 7:34:49
Message-ID: 868549874.36568933.1356680089451.JavaMail.root () redhat ! com
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----- Original Message -----
> From: "Andrew Holway" <a.holway at syseleven.de>
> To: "Raghavendra Gowdappa" <rgowdapp at redhat.com>
> Cc: gluster-devel at nongnu.org, "???? ????????" <dobber at amln.net>
> Sent: Thursday, December 27, 2012 3:28:58 AM
> Subject: Re: [Gluster-devel] IB/RDMA Testing for 3.4
> 
> > > 
> > > Is the Gluster RDMA stuff derived from the NFS over RDMA stuff?
> > 
> > Yes. Largely implemented based on RFCs 5666 and 5667.
> 
> Does gluster use RDMA for client connections or internal stuff or
> both? Googling didn't come up with much.

As of now, tcp/ip is used for connection establishment b/w client and (glusterd, \
bricks). Once connection is established, all data goes through infiniband network. \
Effectively all the file system data goes through infiniband. Message sizes exceeding \
certain threshold are transferred using rdma and others through send/recv.

> 
> Ta,
> 
> Andrew
> 
> > 
> > regards,
> > Raghavendra.
> 
> 
> 


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