Overview
Get high-speed database unloading
IMS™ High Performance Unload for z/OS® delivers high speed IMS database unloading and improves IMS data retrieval performance through an unload API. It reduces CPU usage and elapsed time, lowering processing costs while supporting continued processing after pointer errors, user exits, and multiple unload record formats.
Features
Fast and integrated IMS data unloading
As processing volumes increase, more work needs to be done in a shorter time due to shrinking batch windows. IMS High Performance Unload for z/OS saves you time and money by reducing the CPU and elapsed time that is required to unload IMS databases and to run IMS data retrieval application programs.
IMS High Performance Unload includes two unload utilities, FABHURG1 and FABHFSU that provide high speed unloading capability. It also includes an API for DL/I application programs that use GN calls.
IMS High Performance Unload is designed for use with IMS Database Reorganization Expert for z/OS, IMS Online Reorganization Facility for z/OS and other high-performance IMS Tools products to provide the most efficient and powerful end-to-end solution for IMS database reorganization.
IMS High Performance Unload generates statistical reports that are used during IMS database reorganization to help determine when a reorganization is needed. The reports can also be used to measure the quality of the HDAM and PHDAM randomizing routines.
Use cases
Accelerate IMS data access and efficiency
Reduce the time, effort, and resources required to access IMS data. High-speed retrieval, flexible unloading options, broad database support, and tuning insights help teams improve productivity, optimize performance, and streamline database operations.
As data volumes grow, teams can complete database unloads with less time and resource consumption, helping keep operations efficient and batch work on schedule.
When rapid access to IMS data is critical, the High Speed Sequential Retrieval (HSSR) Engine helps accelerate retrieval activities, allowing teams to complete processing tasks quickly.
Administrators can address unique data handling requirements with options unavailable in the base utility, reducing effort and simplifying specialized processing.
Organizations can unload HALDB, HDAM, HIDAM, HISAM, SHISAM, and even broken data sets through a consistent approach that reduces operational complexity.
Teams gain actionable insight from statistical reports, making it easier to tune databases, evaluate performance, and maintain efficient operations.
Resources
Discover expert resources
Browse datasheet, videos and support documentation to deepen your understanding of IMS High Performance Unload for z/OS and support informed decision-making.
IBM IMS is a high-performance hierarchical database and transaction manager for z/OS designed to secure and scale critical business applications.