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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.

The Licensed Internal Code maintains a 128 KB shadow log on the load-source disk. The log contains a duplicate copy of the latest entries. When you perform an IPL to dedicated service tools (DST), the Product activity log option uses this shadow log.

Note: The shadow log is not available in the stand-alone environment (Type-D IPL). In the limited paging environment, some options are not available. For more information on paging environments, see System paging environments.
Parent topic: Product activity log

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Last updated: Wed, September 28, 2016