[Linux-cluster] Add a fence device of type SUN ILOM

brad at bradandkim.net brad at bradandkim.net
Fri Aug 10 17:38:11 UTC 2007

> brad at bradandkim.net wrote:
>>> Quentin Arce wrote:
>>>>>> My machines are SUN Fire X4100. I see that we can define a fence
>>>>>> device of type HP ILO. I would like to know if I can use the HP ILO
>>>>>> form in system-config-cluster tool to enter and use a SUN ILOM as
>>>>>> fence device?
>>>>> How does ILOM work? telnet or ssh? Is there an snmp interface to
>>>>> ILOM?
>>>>> If so, there might be a way...by hacking on another agent.
>>>> So, I'm a lurker on this list as I no longer have a cluster up... but
>>>> I work on ILOM and I would love to see this work.  This isn't official
>>>> support, I'm a developer not a customer support person.  So, it's more
>>>> on my time.  If there is anything I can do... Please let me know.
>>>> Questions on this problem, regarding what ILOM can / can't do, how to
>>>> check state of the server via ILOM, etc.
>>> Quentin! That is very kind of you. If you help with the ILOM protocol,
>>> I'll help with the agent/script. This thread could form a document on
>>> how to write an arbitrary fence agent for use with rhcs.
>>> Where is documentation available? Generally, three things are needed
>>> from a baseboard management device in order to use it for fencing: 1) A
>>> way to shut the system down, 2) a way to power the system up, and 3) a
>>> way to check if it is up or down.
>>> What means can a script use to communicate with the ILOM card? Are
>>> there
>>> big delta's in the protocol between different ILOM versions?
>>> I look forward to hearing from you.
>>> -J
>> I am interested in seeing this thread play out as well since I have 26
>> SUN
>> servers I am beginning to cluster.  My question is why use SNMP over
>> v2.0.  I can do the above three things with:
>> /usr/bin/ipmitool -U <user> -P <password> -H <ilom IP> chassis power off
>> /usr/bin/ipmitool -U <user> -P <password> -H <ilom IP> chassis power on
>> /usr/bin/ipmitool -U <user> -P <password> -H <ilom IP> chassis power
>> status
>> I don't need any MIB's for this either.  It seems to me this might be an
>> easier solution than snmp, but I may be missing something.
> Oh make sure you are using lanplus mode for this.

Will do, and thanks.

Brad Crotchett
brad at bradandkim.net

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