Specifications

5102ch04.fm Draft Document for Review May 12, 2014 12:46 pm
122 IBM Power System S822 Technical Overview and Introduction
which logs the error. I/O devices can also include specific exercisers that can be invoked by
the diagnostic facilities for problem recreation if required by service procedures.
4.3.3 Reporting
In the unlikely event that a system hardware or environmentally induced failure is diagnosed,
IBM Power Systems servers report the error through various mechanisms. The analysis
result is stored in system NVRAM. Error log analysis (ELA) can be used to display the failure
cause and the physical location of the failing hardware.
With the integrated service processor, the system can automatically send an alert through a
phone line to a pager, or call for service in the event of a critical system failure. A hardware
fault also illuminates the amber system fault LED, located on the system unit, to alert the user
of an internal hardware problem.
On POWER8 processor-based servers, hardware and software failures are recorded in the
system log. When a management console is attached, an ELA routine analyzes the error,
forwards the event to the Service Focal Point (SFP) application running on the management
console, and has the capability to notify the system administrator that it has isolated a likely
cause of the system problem. The service processor event log also records unrecoverable
checkstop conditions, forwards them to the SFP application, and notifies the system
administrator. After the information is logged in the SFP application, if the system is properly
configured, a call-home service request is initiated and the pertinent failure data with service
parts information and part locations is sent to the IBM service organization.This information
will also contain the client contact information as defined in the IBM Electronic Service Agent
(ESA) guided setup wizard. With the new HMC V8R8.1.0 a Serviceable Event Manager is
available to manually block problems from being automatically transferred to IBM. Please
refer to “Service Event Manager” on page 137 for more details.
Error logging and analysis
When the root cause of an error is identified by a fault isolation component, an error log entry
is created with basic data such as the following examples:
򐂰 An error code that uniquely describes the error event
򐂰 The location of the failing component
򐂰 The part number of the component to be replaced, including pertinent data such as
engineering and manufacturing levels
򐂰 Return codes
򐂰 Resource identifiers
򐂰 FFDC data
Data that contains information about the effect that the repair will have on the system is also
included. Error log routines in the operating system and FSP can then use this information
and decide whether the fault is a call-home candidate. If the fault requires support
intervention, a call is placed with service and support, and a notification is sent to the contact
that is defined in the ESA-guided setup wizard.
Remote support
The Remote Management and Control (RMC) subsystem is delivered as part of the base
operating system, including the operating system that runs on the Hardware Management
Console. RMC provides a secure transport mechanism across the LAN interface between the
operating system and the Hardware Management Console and is used by the operating