Re: Redundant Network in Cluster IP Resource
- From: "Russ Kaufmann [MVP]" <russ@xxxxxxxxxxxxxxx>
- Date: Tue, 30 May 2006 11:00:48 -0600
<trubini@xxxxxxxxx> wrote in message
news:1148929020.444075.290720@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi there,
I was wondering if in MSCS it's possible to configure an IP address
resource in order to manage a redundant network of two public
interfaces. That is, the clients and servers have two network adapter,
the server has a virtual IP address resource configured into a group
that should failing over whenever an adapter fails, switching the
ipaddr over the other adapter alive (the virtual ip address shuold be
in a third subnet). I've tested it and I know that it doesn't quite
work like that (even if I managed to ping the remote address from a
single homed client with multiple subnet and switching manually the
property on the cluster), but still the problem whould be client-side
because there should be a routing protocol (or whatever) to enable all
clients to see the switch from the remote side and locally rerouting
the third subnet on the right adapter. Perhaps I should use load
ballancing for this kind of application but I need the cluster because
the applications couldnt run in "parallel".
Another possibility that comes to my mind is some sort of abstraction
derived from the name resolution resource. This time creating two
virtual IP address (everyone bounded to the right network) with the
same subnet of the real adapter connected to. The Name Resource, by
means of dns or netbios registration, should do the right thing (tm)
and manage the faulty adapter changing the ip address of its name to
the other alive. Now the problem should be the remote client resolution
cache not updated, I mean, without a remote "poisoning" mechanism to
forcing the update, anyhow in this case the cache timeout downtime is
acceptable.
Why not use NIC teaming on the public interface? It seems to me that it will
meet your requirements.
--
Russ Kaufmann
MVP - Windows Server - Clustering
ClusterHelp.com, a Microsoft Certified Gold Partner
Web http://www.clusterhelp.com
Blog http://msmvps.com/clusterhelp
.
- References:
- Redundant Network in Cluster IP Resource
- From: trubini
- Redundant Network in Cluster IP Resource
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