[Linux-cluster] Two node NFS cluster serving multiple networks

[Brian Kroth]

OK, poorly thought out example.

FYI, in heartbeat you can specify which interface to use for the
service IP, though like rgmanager, you generally don't have to:

http://www.linux-ha.org/HeartbeatResourceAgent/IPaddr2
http://www.linux-ha.org/v2/Examples/Simple

Alex Kompel <barbos at gmail.com> 2008-03-12 10:39:
> You will still need some way to tell the system through which
> interface you want to route outgoing packets for each target.
> You can achieve the same with greater ease by splitting the network in
>  2 subnets and assigning each to a single interface.
> It all depends on the problem you are trying to solve. If you want
> redundancy - use active-passive bonding, you want throughput - use
> active-active bonding (if your switch supports link aggregation), if
> you want security and isolation - use separate subnets.
> 
> -Alex
> 
> 2008/3/12 Brian Kroth <bpkroth at wisc.edu>:
> > This is a hypothetical, but what if you have two interfaces on the same
> >  network and want to force one service IP to one interface and the other
> >  to a different interface?  I think what everyone is wondering is how
> >  much control one has over the service IP placement.
> >
> >  Thanks,
> >  Brian
> >
> >  Finnur Örn Guðmundsson - TM Software <fog at t.is> 2008-03-12 14:36:
> >
> >
> > > Hi,
> >  >
> >  > I see no reason why you could not have 3 diffrent interfaces, each connected to the networks you are trying to serve the NFS requests to/from. RG Manager will add the floating interfaces to the "correct" interface, that is, if your floating ip is 1.2.3.4 and you have a interface with the IP address 1.2.3.3 he will add the IP to that interface.
> >  >
> >  >
> >  > Bgrds,
> >  > Finnur
> >  >
> >  > -----Original Message-----
> >  > From: linux-cluster-bounces at redhat.com [mailto:linux-cluster-bounces at redhat.com] On Behalf Of gordan at bobich.net
> >  > Sent: 12. mars 2008 14:10
> >  > To: linux clustering
> >  > Subject: Re: [Linux-cluster] Two node NFS cluster serving multiple networks
> >  >
> >  > Sounds very similar to what I'm trying to achieve (see the other thread
> >  > about binding failover resources to interfaces). I've not seen a response
> >  > yet, so I'm most curious to see if you'll get any.
> >  >
> >  > Gordan
> >  >
> >  > On Wed, 12 Mar 2008, Randy Brown wrote:
> >  >
> >  > > I am using a two node cluster with Centos 5 with up to date patches.  We have
> >  > > three different networks to which I would like to serve nfs mounts from this
> >  > > cluster.  Can this even be done?  I have interfaces available for each
> >  > > network in each node?
> >  >
> >  > --
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