Chapter 1 System Overview 1-23
1.3.7 eXtended System Control Facility Unit (XSCFU)The eXtended System Control Facility Unit (XSCFU) is a service processor that
operates and administrates both midrange servers (FIGURE1-16 and FIGURE1-17). The
XSCFU diagnoses and starts the entire server,configures domains, offers dynamic
reconfiguration, as well as detects and notifies various failures.The XSCFU enables
standard control and monitoring function throughnetwork. Using this function
enables starts, settings, and operation managements of the server from remote
locations.
TABLE1-10 Status Indicator LED Pattern Summary
LED
POWER XSCFSTANDBY CHECK Descriptionof the State
Off Off Off Thecircuit breaker is switched off.
Off Off On The circuit breaker is switched on.
Off Blinking Off TheXSCF is being initialized.
Off Blinking On An error occurred in the XSCF.
Off On Off The XSCF is on standby.
Thesystem is waiting for power-on of the
air conditioning system.
On On Off Warm-up standby processing is in
progress(power-on is delayed).
The power-onsequence is in progress.
The system is in operation.
Blinking On Off The power-off sequence is in progress.
Fan termination is being delayed.