Re: Fencing with Dell Remote Access Cards

[Kaerka Phillips <kbphillips80@xxxxxxxxx>]

Here is the fence configuration that I used, as in my experience if you have drac5 cards with greater than version 1.20 firmware you will need to use the lesser known fence_drac5 module rather than the fence_drac module or else you'll have drac hangs and the cluster won't know that it successfully fenced the node.  Dell firmware versions 1.0 through 1.20 seem to work okay with the original fence_drac module.

I don't know how good the delay settings here are, and this setup still relies on telnet control over the drac5 rather than SSH.  With this you'll need to enable telnet commands on the drac card before this can be used, and also set a password for the root user on the drac as well.

<?xml version="1.0"?>
<cluster alias="cluster_name" config_version="01" name="cluster_name">
        <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="20"/>
        <clusternodes>
                <clusternode name="node1name" nodeid="1" votes="1">
                        <fence>
                                <method name="1">
                                        <device name="drac1"/>
                                </method>
                        </fence>
                </clusternode>
                <clusternode name="node2name" nodeid="2" votes="1">
                        <fence>
                                <method name="1">
                                        <device name="drac2"/>
                                </method>
                        </fence>
                </clusternode>
                <clusternode name="node3name" nodeid="3" votes="1">
                        <fence>
                                <method name="1">
                                        <device name="drac3"/>
                                </method>
                        </fence>
                </clusternode>
                <clusternode name="node4name" nodeid="4" votes="1">
                        <fence>
                                <method name="1">
                                        <device name="drac4"/>
                                </method>
                        </fence>
                </clusternode>
        </clusternodes>
        <cman/>
        <fencedevices>
                <fencedevice agent="fence_drac5" ipaddr="ipaddr" login="root" name="drac1" passwd="pass"/>
                <fencedevice agent="fence_drac5" ipaddr="ipaddr" login="root" name="drac2" passwd="pass"/>
                <fencedevice agent="fence_drac5" ipaddr="ipaddr" login="root" name="drac3" passwd="pass"/>
                <fencedevice agent="fence_drac5" ipaddr="ipaddr" login="root" name="drac4" passwd="pass"/>
                </fencedevices>
        <rm>
                <failoverdomains/>
                <resources/>
        </rm>
        <totem consensus="200" join="60" token="10000" token_retransmits_before_loss_const="4"/>
</cluster>

On Wed, Apr 22, 2009 at 2:41 PM, Phil Jones <philjones85@xxxxxxxxxxx> wrote:

Can someone tell me the proper syntax for the fencedevices section of the cluster.conf file using DRAC5?

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