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



brad 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 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.


Oh make sure you are using lanplus mode for this.


Thanks,

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

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