[Gluster-users] bonding question

Dan Lambright dlambrig at redhat.com
Mon Sep 29 14:38:22 UTC 2014


The problem I ran into with MPIO and gluster was it did not recognize two replicated subvolumes as belonging to the same volume. If I recall the target id (WWID) of each subvol needs to be the same for the "grouping" to work.  I was able to workaround this with a hack, but it did not work out of the box.

----- Original Message -----
> From: "Alex Crow" <acrow at integrafin.co.uk>
> To: gluster-users at gluster.org
> Sent: Monday, September 29, 2014 10:24:57 AM
> Subject: Re: [Gluster-users] bonding question
> 
> Yes, but even with rr it's still one tcp connection. At layer2 it gets
> distributed over multiple physical links. TCP doesn't care or notice
> (except for retransmissions as I mentioned before).
> 
> This is one advantage of iSCSI/FCoE/FC/SCSI etc in that you can use
> "multipath" which is transparent, scales per-link close to linear and is
> part of the storage protocol (ie multiple abstract paths between
> initiators and targets) rather than the network stack.
> 
> You could serve up iSCSI from files on a mounted via FUSE from a
> glusterfs cluster, which would enable multipath, but I've only ever seen
> a demo of this on YouTube and I was not convinced that on its own it
> would be crash-consistent or resistant to gluster split-brain. Anyone
> else that's tried this is welcome to put me right on this.
> 
> Cheers
> 
> Alex
> 
> 
> On 29/09/14 15:10, Demeter Tibor wrote:
> > Hi,
> >
> > I would like to use glusterfs as ovirt-vmstore.
> > I this case one vm, that is running on one compute node will use only one
> > tcp connection?
> >
> > Thanks
> >
> >
> >
> >
> > ----- Eredeti üzenet -----
> >>> Ok, I mean this is a network based solution, but I think the 100MB/sec is
> >>> possible with one nic too.
> >>> I just wondering, maybe my bonding isn't working fine.
> >> You should test with multiple clients/dd streams.
> >>
> >> http://serverfault.com/questions/569060/link-aggregation-lacp-802-3ad-max-throughput/
> >>
> >> rr
> >>
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