IBM eserver pSeries 690, User Manual

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Before resetting the service processor, if the managed system is powered on and
running AIX, shut down all partitions, or the full system partition. This action causes the
system to shut down and the system power is turned off.
To reset the service processor when the managed system is powered off, perform either
of the following:
v
If the service processor is responding to input from the HMC (or ASCII terminal),
select Service Processor Setup Menu from the main menu, then select Reset
Service Processor. This can only be done by a privileged user.
v
Put the UEPO switch in the off position, then back to the on position.
Note: Do
not use the pinhole reset switch to reset the service processor.
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Eserver
pSeries 690 User’s Guide