IBM SY44-5902-05 manual Initialization output, Data descriptions, Log entries

vHardware errors.

If hardware errors occur during the Licensed Internal Code initialization step, the IPL ends. If the hardware error is associated with the file, you might need to install the Licensed Internal Code again.

At any point in the Licensed Internal Code initialization phase, errors that end machine processing during an IPL can occur. If this occurs, indicators are set to the data function. The machine check error log buffer, Licensed Internal Code log, or the product activity log contain information about the condition that caused the ending.

Initialization output

The output that is created when the Licensed Internal Code is initialized consists of the following:

vMachine status information saved in the machine initialization status record (MISR).

vStatus codes for an initial program load displayed on the control panel for long-running IPL functions. See “IPL status SRCs” on page 201 or iSeries Licensed Internal Code Diagnostic Aids - Volume 1 for more information.

vProduct activity log and Licensed Internal Code log information that service personnel need to service the machine.

Data descriptions

vPreceding stopped data

vBad page table

Log entries

Logging is a function of Licensed Internal Code and starts during Licensed Internal Code initialization. Licensed Internal Code parts (see “Licensed Internal Code (LIC) introduction” on page 223) send log records to the product activity log. Licensed Internal Code input/output managers do much of the error machine check controlling.

The IOPs also have the ability to send data into the product activity log. Log records from the IOPs are processed by the Reliability Availability Serviceability (RAS) Focal Point Common Class I/O Manager Task in Licensed Internal Code. The following are the types of log entries from the IOP:

Asynchronous Log Report: This is a bus-level record that is used when the I/O processor has detected a critical failure. The asynchronous log report is used when the IOP cannot communicate with Licensed Internal Code or the service processor.

Log Notification Record: This is a log record that is reported to the system from the IOP after the RAS connections have been set up.

Log Information Record: This is an information-only record that is reported to the system after the RAS connections have been set up. The information records (statistics) are logged as product activity log information.

The following list describes the attributes of the product activity log:

vPermanent errors that do not stop the system

vMachine check data when available on the next IPL (if power was not switched off before doing the next IPL)

vAny temporary errors necessary for problem analysis

220Service Functions V5R2