> I work as a consultant in a small installation in Eastern Europe.
> Their main business activity runs on a couple of Z900 machines (z/OS
1.6).
> One is for production and the other for development.
>
> Like many organizations, they've been trying to get rid of the
> Mainframe for years now, so far with very little progress...
> A few hours ago, we got a very strange message on the development
machine:
> "ISN000E The service processor has failed. Some critical system
> functions are inoperative.
> An orderly shutdown of the entire system should be planned in order
> to minimize the possible impact of this failure."
>
> I thought I might be able to find something that might explain this
> in the syslog, but it showed nothing out of the ordinary.
> We tried IPLing but got the error message again.
> After a short (and rather panicked) discussion with the operations
> manager, and considering the documented instruction to shut down the
> system, we've decided to take down all LPARs.
> Naturally, they are very disturbed about this message, and the
> required system shutdown that followed.
>
> Any thoughts on what might be causing this?
> My client and I would highly appreciate any hints/tips on the root
> cause of this...
z/OS issues this message in 2 cases:
1. The machine has presented a Service Processor Damage
machine check.
2. The machine has presented a state change event which
indicates an unrecoverable Service Processor failure.
"Service Processor" is also known as the "SE" or "Support Element".
Further investigation would need to be done by your hardware support
team.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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