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Re: [Linux-cluster] fencing issue in 2 nodes cluster



Fence device options are actually recommended in the Red Hat Knowledgebase article 28603: "Fence Device and Agent Information for Red Hat Enterprise Linux"...

For iLO3 is says "fence_ipmilan needs to be used with the -P option to enable Lanplus. It also requires usage of the -T parameter to provide a 4 second timeout rather than the default fence_ipmilan default of 2 seconds. The -T parameter is provided in versions of fence_ipmilan from Red Hat Enterprise Linux 5.5.z and up."

Peter

On 2 Aug 2012, at 16:00, Digimer <lists alteeve ca> wrote:

On 08/02/2012 08:19 AM, AKIN ├┐ffffffffffd6ZTOPUZ wrote:
Hi
I have fencing problem in 2 nodes cluster  <cman expected_votes="1"
two_node="1"/> )
fence device  agent  is    like that :
<fencedevice agent="fence_ipmilan" ipaddr="***********" lanplus="1"
login="clsfenceadmin" method="cycle" name="fence_node2"
passwd="**************" power_wait="4"/>
when I run fence_node   nodename    command  on  host   ,  Related node
goes to down but   I am taking errors in /var/log/messages  :
Aug  2 14:55:31 sapclsn2 fenced[6714]: fencing node "sapclsn1.edase.com"
Aug  2 14:55:32 sapclsn2 fenced[6714]: agent "fence_ipmilan" reports:
Rebooting machine @ IPMI:192.168.11.68...Done
Aug  2 14:55:32 sapclsn2 fenced[6714]: fence "sapclsn1.edase.com" failed
you have any ideas?


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You've added a bunch of options that I don't think you need. Can you strip the configuration down and see if it works? If so, then you can start putting the options back, one at a time until it breaks.

Here is an example implementation of fence_ipmilan which I have used dozens of times without trouble (including on HP DL1** series machines).

https://alteeve.com/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Example_.3Cfencedevice....3E_Tag_For_IPMI

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Digimer
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