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Error Logout Analysis Program
System Test
The error logout analysis program is automatically invoked after each machine
check occurs to analyze processor logout data contained on functional diskette 1
and to provide fault isolation.
The System Test performs a functional test of the system hardware components,
including the support processor, storage, channels, and most locally
channel-attached
1/0
devices. Two versions of the System Test are available for
4381 Processors. System Test/ 4381 supports 4381 Processors operating only in
System/370 mode.
It
is supplied on tape and can be loaded to direct access
storage for use in a 4381 installation.
System Test/4381XA is a copyrighted, proprietary IBM program that supports
4381 Processors operating in System/370 or System/370-XA mode.
It
is supplied
on tape and its use is controlled by IBM. The System Test/ 438 lXA is not to be
loaded to customer direct access storage and will be executed only from tape.
The System Test can be used for the following purposes:
1. To determine that the hardware configuration operates correctly after initial
installation and before any IPL is performed
2. To locate a malfunctioning unit in the system. (The specific error component
within the unit is not identified.)
3. To verify correct system operation after a malfunctioning unit has been
repaired
4. To verify correct 4381 operation after engineering change installation, MES
installation, or configuration changes have been made
Remote Support Facility
The Remote Support Facility (RSF) feature is a highly recommended, no-charge
specify feature that is designed to offer an advanced level of problem determination
and enhanced serviceability.
The Remote Support Facility provides the capability of establishing a
teleprocessing link between the 4381 support processor and RETAIN or a 3275
display. This function is controlled by microcode within the support processor and
is used to enhance the maintenance of 4381 Processors.
Four modes of operation are available:
•
Problem Analysis mode, which permits the customer to transmit processor log
data to the RETAIN system, as discussed previously in this subsection.
•
Data Bank mode, which permits an IBM customer engineer to access the
RETAIN data base facilities from the customer site.
Section 60: Reliability, Availability, and Serviceability (RAS)
117
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