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

Mark Hahn hahn at mcmaster.ca
Wed Sep 30 15:13:29 EDT 2009


>> Yes, but the tiny road is still useable by the emergency services when
>> there's been a pileup on the main cariageway, and there are wreckage
>> and bodies everywhere!
>
> I allready saw a lot of Beowulfs where the management network is so rarely
> used that nobody detects errors. When an emergencie arrives, the operators
> struggles over the screwed up switches and unplugged cables.

I think that's insane (no offense intended).  same with the comment about 
crash carts being hard to maneuver.

the management network should be constantly used for monitoring; never 
testing or using it is a serious admin failure IMO.  having enough 
obstructions in your machineroom that you can't move a small cart around
is also a serious failure: such a room would necessarily also have 
disasterous airflow, etc.
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