Re: Cluster MADCAP errors

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From: WillyBFree <WBF@xxxxxxxxxxxx>
Date: Thu, 19 Jul 2007 15:44:05 -0400

If I decide to use the MulticastClusterDisable=1 setting, do I need to reboot the nodes or turn off clustering first?

Jeff Hughes [MSFT] wrote:

In 2K3, once you go above 2 nodes, we revert the intra cluster heartbeats to multicast instead of unicast. Since there's no MAPCAP servers available, the error is generated. You can either ignore the errors or change the cluster heartbeats back to unicast. Here's the KB on how to do that. Reverting back to unicast heartbeats is safe and will have NO impact on the operation or functionality of the cluster.

307962 Multicast support enabled for the cluster heartbeat
http://support.microsoft.com/default.aspx?scid=kb;EN-US;307962

References:
- Cluster MADCAP errors
  - From: WillyBFree

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