ASP.NET for Web Designers

Chapter 1: Introduction to System Logger

Figure 1-1: Logical and physical views of System Logger-maintained log data

Chapter 2: System Logger Fundamentals

Figure 2-1: System Logger spanning different levels of storage

Figure 2-2: Writing to a System Logger log stream

Figure 2-3: Storage levels for a CF-Structure based log stream

Figure 2-4: Entries and elements divided among connected log streams

Figure 2-5: Mixing different profile log streams in the same structure

Figure 2-6: Entry/element usage at time=0

Figure 2-7: Entry/element usage at time=1

Figure 2-8: Entry/element usage at time=2

Figure 2-9: System Logger duplexing combinations

Figure 2-10: DASD-only log stream spanning two levels of storage

Figure 2-11: Offload overview (example is a CF-Structure based log stream)

Figure 2-12: Offload from HIGHOFFLOAD to LOWOFFLOAD

Figure 2-13: Offload data set LSN.A0000001 cannot be deleted

Figure 2-14: A single point of failure exists between Sys1 and the CF

Figure 2-15: Structure A has peer connectors

Figure 2-16: Recovery delayed for some data

Chapter 3: DFSMStvs and Logger

Figure 3-1: VSAM data sharing before Record Level Sharing (RLS)

Figure 3-2: CICS/VSAM Record Level Sharing

Figure 3-3: Transactional VSAM and CICS

Chapter 4: IMS Common Queue Server and the System Logger

Figure 4-1: IMSplex shared queues component architecture

Figure 4-2: Where is the log stream?

Figure 4-3: Flow of message and log traffic

Figure 4-4: Shared log stream,

Figure 4-5: Reading the log stream

Figure 4-6: Offloading the log stream

Chapter 5: CICS and System Logger

Figure 5-1: How CICS decides which log stream name to use

Figure 5-2: Overview of CICS logging

Figure 5-3: System Logger-related definitions

Figure 5-4: Sample CICS JOURNALMODEL

Figure 5-5: Defining structure in CFRM policy

Figure 5-6: Example of Auto Alter messages

Figure 5-7: Defining a structure for CF-Structure log streams in the System Logger policy

Figure 5-8: Using IXCMIAPU report to get Effective Average Buffer Size

Figure 5-9: CF-Structure log stream definition

Figure 5-10: Displaying if staging data sets are in use

Figure 5-11: Defining a DASD-only log stream

Figure 5-12: Defining a MODEL log stream for DFHLOG

Figure 5-13: Defining a MODEL log stream for a user journal

Figure 5-14: Staging and offload data sets for IYOT1.DFHLOG log stream

Figure 5-15: Offload data set deletion

Figure 5-16: RMF Report Class for the JOR* Transactions in a R410 region

Figure 5-17: Sample Journals statistics for a CICS V4.1 region

Figure 5-18: Sample IXGRPT1 report for a DASD-only User Journal

Figure 5-19: Sample IXGRPT1 report for a DASD-only Auto Journal log stream

Figure 5-20: Sample IXGRPT1 report for a DASD-only Forward recovery log

Figure 5-21: Sample Report Class output

Figure 5-22: Sample DFH0STAT output

Figure 5-23: DFH0STAT for CICS TS 22 - part 1

Figure 5-24: DFH0STAT for CICS TS 2.2 - part 2

Figure 5-25: Sample DFHSTUP End of Day report

Figure 5-26: CICS Performance Analyzer Log stream Summary

Figure 5-27: Sample IXGRPT1 Report

Figure 5-28: Sample of the hand crafted reports

Figure 5-29: Log Defer Sample 1

Figure 5-30: Log Defer sample 2

Figure 5-31: Log Defer sample 3

Figure 5-32: Example 4 - AKPFREQ set to 7500

Figure 5-33: Example 5 - AKPFREQ set to 4000

Figure 5-34: Example 6 - AKPFREQ set to 2500

Figure 5-35: User Journal - STG_SIZE 25000, single region

Figure 5-36: User Journal - STG_SIZE 2549, single region

Chapter 6: Other Logger Exploiters

Figure 6-1: Log stream rebuild processing

Figure 6-2: Display Logger, Connection

Figure 6-3: Sample ISPF dialog to input variables to define log stream

Chapter 8: System Logger Performance and Tuning

Figure 8-1: Calculating High Threshold value

Figure 8-2: RMF Coupling Facility Activity report

Figure 8-3: Sample JCL to produce an RMF CF Activity Report

Figure 8-4: JCL to produce RMF Workload Activity report

Figure 8-5: Sample Workload Activity report

Figure 8-6: Sample IXGRPT1 output

Figure 8-7: Sample report from step SHOWALL

Figure 8-8: Sample log stream attribute report from step SHOWDEF1

Figure 8-9: Sample events report from step SHOWDEF1

Figure 8-10: Sample interim storage report from step SHOWDEF1

Figure 8-11: Sample key indicator report from step SHOWDEF1