Formatting DLF dump data

Use the IPCS DLFDATA subcommand to produce diagnostic reports about DLF. z/OS MVS IPCS Commands gives the syntax of the DLFDATA subcommand and z/OS MVS IPCS User's Guide explains how to use the DLFDATA option of the IPCS dialog.

The dump may also contain component trace data for DLF. See the component trace chapter of z/OS MVS Diagnosis: Tools and Service Aids for information on how to format this trace data.

DLFDATA divides the information about DLF into six reports. Each report corresponds to the following DLFDATA keywords.

Table 1. Summary: DLFDATA keywords
Keyword	Report Displays	See topic:
CLASS	Information about a DLF class.	DLFDATA CLASS subcommand output
EXCEPTION	Information about any inconsistencies found in the DLF data.	DLFDATA EXCEPTION subcommand output
STATS	Statistics on DLF activity	DLFDATA STATS subcommand output
STORAGE	Information about storage management of DLF data spaces sysplex.	DLFDATA STORAGE subcommand output
SUMMARY	Information about each class known to DLF.	DLFDATA SUMMARY subcommand output
USER	Information about an address space associated with the active task that was using DLF at the time of the error.	DLFDATA USER subcommand output

Examples of DLFDATA reports follow. The order of the reports represent a typical sequence when diagnosing a DLF problem:

DLFDATA SUMMARY (or just DLFDATA)
DLFDATA CLASS
DLFDATA USER
DLFDATA CLASS OBJECT
DLFDATA EXCEPTION
DLFDATA STORAGE
DLFDATA STATS