IBM p 655 series, User Manual

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With the server on after an operating system fault, recognized by an 8-digit code in the virtual operator
panel.
In the standby phase, the service processor takes care of some automatic duties and is available for
menus operation. The service processor remains in the standby phase until a power-on request is
detected.
The standby phase components are as follows:
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Menus
The service processor menus are password-protected. Before you can access them, you need either
the general user-password or privileged-user password.
On HMC-managed systems, service processor menus are available on the HMC graphical user
interface.
Bring-Up Phase
The bring-up phase components are as follows:
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Retry Request Check
The service processor checks to see if the previous boot attempt failed. If the specified number of
failures are detected, the service processor displays an error code.
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Dial Out
This function is handled by the Service Agent code running on the HMC. The service processor issues
an error report with the last reported IPL status indicated and any other available error information.
v
Update Operator Panel (on the HMC)
The service processor displays operator panel data on the HMC virtual terminal window if a remote
connection is active.
v
Environmental Monitoring
The service processor provides expanded error recording and reporting.
v
System Firmware Surveillance (Heartbeat Monitoring)
The service processor monitors and times the interval between system firmware heartbeats.
v Responding to System Processor Commands
The service processor responds to any command issued by the system processor.
Runtime Phase
This phase includes the tasks that the service processor performs during steady-state execution of the
operating system.
v Environmental Monitoring
The service processor monitors voltages, temperatures, and fan speeds (on some servers).
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Responding to System Processor Commands
The service processor responds to any command issued by the system processor.
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Run-Time Surveillance
If the device driver is installed and surveillance enabled, the service processor monitors the system
heartbeat. If the heartbeat times out, the service processor places an outgoing call. This is different from
the bring-up phase scenario, where the specified number of reboot attempts are made before placing an
outgoing call.
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HMC surveillance
On an HMC-managed system, the service processor monitors the communication link between the
managed system and the HMC. If the service processor detects that this communication link has been
broken, it will post an error to the operating system running on the managed system.
Chapter 4. Using the Service Processor
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