Re: Add a fence device of type SUN ILOM

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> 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 IPMI
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.

Thanks,

Brad Crotchett
brad@xxxxxxxxxxxxxx
http://www.bradandkim.net

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