[Beowulf] Re: recommendation on crash cart for a cluster room:fullcluster KVM is not an option I suppose?

Huw Lynes lynesh at Cardiff.ac.uk
Fri Oct 9 04:23:06 EDT 2009


On Thu, 2009-10-08 at 15:55 -0700, Greg Lindahl wrote:
> On Thu, Oct 08, 2009 at 05:08:54PM -0500, Rahul Nabar wrote:
> 
> > So, hopefully I will have very little need for IPMI (remote power
> > cycling is great though; those network aware power distribution stics
> > seem great).
> 
> You haven't mentioned the other things you can use IPMI for.
> 
> 1) Console logging. Your machine just crashed. No clue in
> /var/log/messages. "I wonder if it printed something on the console?"
> Answer: ipmi and conman (available in an rpm in Red Hat distros).
> 

IPMI is also handy for initiating crash dumps via NMI. Useful for
finding out why that machine went zombie when there is nothing in the
SOL console logging.

-- 
Huw Lynes                       | Advanced Research Computing
HEC Sysadmin                    | Cardiff University
                                | Redwood Building, 
Tel: +44 (0) 29208 70626        | King Edward VII Avenue, CF10 3NB


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