Performance Management Tools | An Introduction to IMS: Your Complete Guide to IBMs Information Management System

The following sections describe the IBM IMS performance management tools.

The IMS Buffer Pool Analyzer for z/OS tool:

Provides modeling facilities to assist with making informed decisions about the addition of buffers to an existing pool, or sizing requirements for a new buffer pool.
Helps you determine the impact of buffer pool changes before they are made to take the guesswork out of the process.
Analyzes IMS database buffer pools (OSAM and VSAM) to provide statistical analysis of the impact of changes that affect the buffer pools.
Provides I/O rates and buffering requirements for a specific database.
Allows for better allocation of real memory resources.
Identifies databases that most heavily use each database subpool.
Performs "what if" scenario analysis, such as identifying the impact of splitting a specific database into a new buffer pool.
Determines the performance effects for a given buffer pool when you add or reduce the number of buffer pools.

Program number: 5697-H77

The IMS Network Compression Facility for z/OS:

Replaces the IMS Data Stream Tuner; provides support for IMS Version 6, IMS Version 7, and IMS Version 8; and adds several new features and functionality improvements.
Provides several new options for compression of 3270 data streams:
- Compresses all repeated characters, not just spaces, nulls, asterisks, and dashes
- Allows 3270 Field Merge, blank elimination, and elimination of non-display fields
- Eliminates redundant 3270 Set Buffer Address (SBA) commands
Makes installation easier by eliminating the need for the XCM address space and subsystem, and for SYS1.PARMLIB updates, except APF authorization of one data set.
Includes a utility to convert current options to the new PROCLIB member format.
Improves flexibility by allowing cross-MVS system inquiries and updates to Network Compression Facility information and options.

Program number: 5655-E41

The IBM IMS Performance Analyzer for z/OS tool:

Provides comprehensive reporting for the IMS log and IMS Monitor, and for IMS Connect Extensions for z/OS event collection.
Contains a New Dashboard report that provides a quick overview of critical system performance indicators.
Includes a new BMP Checkpoint report that measures batch checkpoint frequency that can impact online performance and system restartability.
Generates the Transaction History File that collects detailed transaction performance data and exports it into DB2.
Provides additional information to aid in the interpretation of reports.
Provides a wide variety of reports that can help shorten transaction response times and increase resource availability.
Offers automatic DBRC log selection of the required SLDS log files to simplify report requests.
Produces IMS log and Monitor reports to "health check" your system.
Enhanced DBCTL reporting.
Provides log reports: Transaction Statistics, System Checkpoint, and Deadlock.
Provides ISPF dialog interface enhancements to manage IMS system and sysplex definitions, and tailor and submit report requests.
Comprehensive reporting for the Fast Path Monitor, including DEDB, BALG/EMH, Fast Path Buffer, OTHREAD, and VSO.
Complements IMS Problem Investigator for z/OS (5655-K50) in the investigation of IMS performance-related problems.

Program number: 5655-E15

The IBM IMS Performance Monitor for z/OS:

Provides real-time status monitoring and alerts for an active IMS subsystem.
Detects active IMS subsystems when they are started and any IMS subsystems that may subsequently become active.
Allows multiple IMS subsystems to be viewed from a single monitoring station, and these subsystems can be logically grouped as desired (for example, in data-sharing groups and shared-queues groups).
Reports as much information as possible to help isolate or point to problem areas that include sysplex functions.
Features general IMS information such as release levels, configurations, and system startup parameters.
Allows user-specified thresholds for setting alerts.
Provides current IMS resource information to assist in tuning.

Program number: 5655-G50

The IMS Problem Investigator for z/OS tool:

Provides an enhanced level of problem-determination services for IMS TM and IMS DB systems.
Includes navigation aids, formatted and personalized reporting, and investigative procedures for IMS log, trace, and other data.
Offers powerful automated features to help reduce the amount of time required to identify and analyze defects or other events of interest in the IMS log.
Accesses services by an ISPF dialog or a batch reporting utility.

Program number: 5655-K50