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v Work with service action log
The SAL is a utility that scans the PAL and displays entries that require service
representative action. It pulls out the relevant information from those entries and
formats it to the display to show service information, such as failing resource
names, field replaceable unit (FRU) part numbers, and FRU locations. If FRU part
numbers and locations cannot be determined, the SAL display shows symbolic
FRU names, which then correspond to problem analysis procedures for the service
representative. The SAL runs before the operating system is up.
A shadow log is maintained by LIC on the load source disk. The 128 K-byte
shadow log contains a duplicate of the most recent or latest Product Activity Log
entries that occurred before IPL began and those entries that were logged since the
beginning of IPL. The Product Activity Log option uses the shadow log when the
system is operating in limited paging environment.
If Product Activity Log initialization is not complete, only the shadow log is
accessible to this option. Also, the Product Activity Log menu offers only a few
specific Product Activity Log options. The Main menu informs the user that log
initialization has not completed, that all Product Activity Log entries are not
accessible, and to IPL the operating system to complete initialization. If
initialization completes after the Product Activity Log option has been selected, the
option must be selected again to make all Product Activity Log options available
for use and to generate reports that show all the log entries.
Product Activity Log location
The Product Activity Log is maintained by the Licensed Internal Code EREP
component. The log files can be stored on any disk unit, so the system must IPL
past storage management recovery to view the data.
Recovering from Product Activity Log errors while in DST
DST uses the LIC code; however, there is limited operating system support in the
DST. Because there is limited operating system support, there is limited Product
Activity Log entry handling support. Most Product Activity Log entries in DST are
catastrophic to the function running, however, DST should continue to function.
LIC log entries are created only if the system is in the full paging environment. In
the limited paging environment, you are limited to messages sent to the display or
the SRC on the control panel. If a Product Activity Log entry occurs while
dumping information to removable media, go to “Work with removable media
lifetime statistics” on page 104.
Paging environment
The product activity log is maintained by the system Licensed Internal Code. The
storage management recovery step of the IPL process must be complete to allow
you to view all the data in the log. If the error log initialization (ELI) IPL step is
not complete, only the shadow log is accessible. The Product Activity Log display
under the shadow log contains a subset of the options that are allowed when the
operating system is available. A message on the Product Activity Log display
informs the user that the error log is not initialized and that all log records are not
accessible. The log files can be stored on any disk unit.
Chapter 3. Product Activity Log 101