BMC Mainframe: IMS Essentials
The course is developed and delivered by © RSM Technology.
This course offers a comprehensive introduction to IMS for all those new to the IMS environment. It provides ideal cross-training for application support specialists from disciplines such as CICS, COBOL, JAVA, or Db2.
The course introduces and explains all areas of IMS databases in both the Batch and Online environments, including data access using the DL/I Language Interface and the maintenance of data integrity using the DBRC feature.
Written exercises reinforce the formal theory sessions. These include the analysis of sample applications and use of the procedures and utilities required to recover from various application and system failures.
Major release:
BMC Mainframe Infrastructure Platform Training
Good for:
Developers
Course Delivery:
Instructor-Led Training (ILT) | 32 hours
Course Modules
-
Introduction to IMS
- Why Use a Database?
- Database types
- Hierarchical terminology
- Processing path
- Accessing data
- Database implementation
- IMS online environment
- Message Format Services (MFS)
- Utilities
- Logging
- Operational responsibilities
-
Introduction to Batch Programming
- DL/I Language Interface
- Program Specification Block (PSB)
- IMS Call Format
- Function code
- Record retrieval Workshop
-
Advanced Database Programming
- Update processing
- Command codes
- PCB Addressing
- Boolean SSAs
- Workshop
-
Binder Database Environment
- Program Specification Block (PSB)
- PSB statements
- PCB
- PROCOPTs
- PSB generation
- ACB generation
- PSB/program relationships
- Batch JCL
- Workshop
-
Database Implementation - 1
- DBD
- Database Organisation and Access Methods
-
Database Implementation - 2
- Secondary indexing
- Secondary data structure
- Stand-Alone processing
- Things to consider
- Logical relationships Database Implementation - 3
- An introduction to HALDB features and processing options
-
Database Backup and Recovery
- Logging
- Image Copy
- Reorganisation
- Database Recovery Control (DBRC)
- associated tools and utilities
-
IMS/TM Concepts & Facilities
- IMS/DC configuration
- Control (CTL) region
- DL/I Separate Address Space (DLISAS)
- Database Recovery Control (DBRC)
- Message Processing Region (MPR)
- Batch Message Processing (BMP) region
- Message scheduling
- Logging.
-
IMS Online Programming – 1
- Message Processing Program (MPP)
- Transaction codes & flow
- Input message segment
- Output message segment
- IMS message calls
- IO PCB mask
- Common status codes
- Workshop
-
Message Format Services
- MFS control blocks
- DIF/DOF coding
- MID/MOD coding
- Attributes
- Message management
-
IMS Online Programming – 2
- Alternate PCB
- Using Alternate PCB
- Transaction switching
- Conversational programming
- Using Checkpoint/Restart
- Workshop
-
Fast Path
- General characteristics
- Fast Path EMH
- Data Entry Database (DEDB)
- Main Storage Database
-
Online IMS System Recovery and Restart
- Logging
- Restart Data Set (RDS)
- Archiving
- Contents of the Log
- Normal restart
- Emergency restart
-
Sharing Data and Data Sharing
- Sharing access - the problem
- Sharing access - solutions
- Control region / DLISAS
- Program isolation
- Locking
- Deadlock resolution
- Data sharing
- Database-Level Sharing
- Block-level sharing
- DBCTL
-
IMS Operations
- Operational considerations
- Operations planning
- Starting IMS
- Stopping IMS
- Online change facility
- Controlling IMS
-
IMS Performance Management
- DB performance
- DB monitor
- Database buffer pools
- DC performance