[Linux-cluster] Re: Fencing test

Rajagopal Swaminathan raju.rajsand at gmail.com
Fri Jan 2 05:49:38 UTC 2009


On Wed, Dec 31, 2008 at 10:30 PM, Paras pradhan <pradhanparas at gmail.com> wrote:
> Pulled the heartbeat network cable from node1. Nothing happens. BUT
> when i plug the cable back , then node1 restarted. What am i misssing
> here.

The Heartbeat network cable should be out for at least 20-30 seconds.

If you have connected the data and heartbeat cable or in the same
switch, you may need to pull out both.

Incidently, you will have to enable multicasting for the heartbeat
network in the switch if it is managed switch and assign a seperate
VLAN for it. There have been cases in recent past where some of the

> Also I don't see any thing interesting in /var/log/messages in
> node1 after i disconnect the cable.

Have you checked node2?


With warm regards


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