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

Skylar Thompson skylar at cs.earlham.edu
Sat Oct 3 15:52:52 EDT 2009


John Hearns wrote:
> 2009/10/3 Rahul Nabar <rpnabar at gmail.com>:
>   
>> ipmitool seems to have a rich set of features for querying the BMC's
>> etc. but I didn't see many SOL sections. Is ipmitool what people use
>> to watch a redirected console as well or anything else? I couldn't
>> find any good SOL howtos or tutorials on google other than the
>> vendor-specific ones. ANy pointers?
>>     
>
> Remember that
> a) the system must be running a serial console, ie, in inittab there
> is a getty associated with the serial port
> b) the BIOS is set to redirect serial port to IPMI
>   
Also,

c) Your boot loader (e.g. grub) must be pointed at the serial console.
d) Make sure the bit rates for a)-c) are set the same, and that the bit
rates actually work. For instance, Dell BMCs claim to do up through
115kbps but ipmitool gives garbage at anything above 56.6kbps.

-- 
-- Skylar Thompson (skylar at cs.earlham.edu)
-- http://www.cs.earlham.edu/~skylar/


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