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Re: [Linux-cluster] Re: Fencing test



On Thu, Jan 8, 2009 at 10:57 PM, Rajagopal Swaminathan
<raju rajsand gmail com> wrote:
> Greetings,
>
> On Fri, Jan 9, 2009 at 12:09 AM, Paras pradhan <pradhanparas gmail com> wrote:
>>
>>
>> In an act to solve my fencing issue in my 2 node cluster, i tried to
>> run fence_ipmi to check if fencing is working or not. I need to know
>> what is my problem
>>
>> -
>> [root ha1lx ~]# fence_ipmilan -a 10.42.21.28 -o off -l admin -p admin
>> Powering off machine @ IPMI:10.42.21.28...ipmilan: Failed to connect
>> after 30 seconds
>> Failed
>> [root ha1lx ~]#
>> ---------------
>>
>>
>> Here 10.42.21.28 is an IP address assigned to IPMI interface and I am
>> running this command in the same host.
>>
>
> Sorry couldn't respond earlier as I do this on personal time (which as
> useual limited for us IT guys and gals ;-) ) and not during work per
> se..
>
> Do not run fence script from the node that you want to fence.
>
> Let us say you want to fence node 3.
> 1. Try pinging the node 3's IPMI from node 4. I should be successful
> 2. Issue the fence command from Node 4 with IP of Node 3 IPMI as argument .
>
>
> HTH
>
> With warm regards
>
> Rajagopal
>
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>

Yes as you said, I am able to power down node4 using node3, so it
seems ipmi is working fine. But I dunno what is going on with my two
node cluster. Can a red hat cluster operates fine in a two nodes mode?
Do i need qdisk or it is optional. Which area do i need to focus to
run my 2 nodes red hat cluster using ipmi as fencing device.

Thanks
Paras.


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