[Linux-cluster] Fencing using brocade

James Parsons jparsons at redhat.com
Wed Sep 13 15:08:07 UTC 2006

isplist at logicore.net wrote:

>>>I want to use my brocade switch as the fencing device for my cluster. I
>>>cannot find any documentation showing what I need to set up on the brocade
>>>itself and within the cluster.conf file as well to make this work.
>>The system-config-cluster application supports brocade fencing. It is a
>>two part process - first you define the switch as a fence device; type
>>brocade, then you select a node an click "Manage fencing for this node"
>>and declare a fence instance.
>Ah, I'm at the command line :). 
>So, there is nothing I need to do on the brocade itself then? The cluster 
>ports aren't connected directly, they are connected into a compaq hub, then 
>the hub is connected into the brocade. The brocade seems to know about the 
>external ports however since they are listed when I look on the switch.
>As for the conf file, I've not found enough information on how to build a good 
>conf file so know this one is probably not even complete. Been working on 
>other parts of the problems then wanting to get to this.
Why build it yourself? The app will do it for you, and not make a typo 
that could cost you valuable time. If you don't have X running on your 
nodes, no problem - just install the s-c-cluster app anywhere...it will 
let you configure a cluster and then save out the conf file which you 
can propogate to the cluster yourself, if you want.


><?xml version="1.0"?>
><cluster config_version="40" name="vgcomp">
>    <fence_daemon clean_start="1" post_fail_delay="0" post_join_delay="3"/>
>    <clusternode name="cweb92.companions.com" nodeid="92" votes="1"/>
>    <clusternode name="cweb93.companions.com" nodeid="93" votes="1"/>
>    <clusternode name="cweb94.companions.com" nodeid="94" votes="1"/>
>    <clusternode name="dev.companions.com" nodeid="99" votes="1"/>
>    <clusternode name="qm247.companions.com" nodeid="247" votes="1"/>
>    <clusternode name="qm248.companions.com" nodeid="248" votes="1"/>
>    <clusternode name="qm249.companions.com" nodeid="249" votes="1"/>
>    <clusternode name="qm250.companions.com" nodeid="250" votes="1"/>
>        <cman/>
>    <fencedevice agent="fence_brocade" ipaddr="x.x.x.x" login="xxx" 
>name="brocade" passwd="xxx"/>
>        <rm>
>                <failoverdomains/>
>                <resources/>
>        </rm>
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