Optimize IMS

Optimize IMS facilitates the migration of IMS databases and VSAM datasets to Db2, eliminating the need for application modifications. Applications continue to use IMS DL/I calls, which are automatically converted to Db2 SQL calls. This conversion process involves several key architectural components: * **DL/I Interceptor:** This component intercepts IMS DL/I calls within the z/OS environment.

* **SQL Converter:** The SQL Converter translates the intercepted DL/I calls into equivalent Db2 SQL statements. * **Mapping Repository:** This repository stores the translation rules that define how DL/I calls are mapped to SQL. Configuration files define the mapping between IMS DL/I calls and Db2 SQL, specifying how IMS database structures are represented in Db2.

These files are critical for ensuring accurate and efficient translation. Optimize IMS leverages z/OS and Db2 security features, supporting authentication methods like RACF, ACF2, and Top Secret. Administration is performed through standard z/OS and Db2 tools.

The system requires specific ports for communication between the DL/I interceptor and the Db2 database. These ports must be open in the z/OS firewall to allow communication. Competing products may use different architectural approaches, such as requiring an intermediate data transformation layer, which can introduce additional complexity and overhead.

Optimize IMS focuses on direct DL/I to SQL conversion for minimal application impact and optimal performance.