Functional changes in IMS Database Solution Pack 2.2 IMS Online Reorganization Facility

Major functional enhancements that are made to IMS Online Reorganization Facility in IMS Database Solution Pack 2.2 are summarized in this topic.

  • Rebuild PSINDEXes during HALDB reorganization (APAR PI89625). During the reorganization, IMS Online Reorganization Facility can rebuild PSINDEXes. For more information, see PSINDEXBLD keyword.
  • Initialize the database during reorganization (APAR PI90523). During the reorganization, IMS Online Reorganization Facility can initialize (empty out) the database. For more information, see INITIALIZE keyword.
  • Enhancement to the conditional reorganization capability (APAR PI91880). In addition to evaluating the primary database, IMS Online Reorganization Facility can also evaluate secondary indexes to determine the reorganization need. For more information, see CR.EVALINDEX keyword and Scenario 5: Evaluating secondary indexes and conditionally reorganizing a database.
  • Support for IMS refreshable exit routines. IMS exit routines can be configured by using IMS refreshable exit routines. For more information, see the topic "Configuring IMS exit routines by using IMS refreshable exit routines" in IMS Database Solution Pack: Overview and Customization.
  • Allocate GDG data sets as log data sets (APAR PH00388). IMS Online Reorganization Facility can dynamically allocate GDG data sets as log data sets. For more information, see LOG1DSN keyword.
  • Specify whether to allow read-only DL/I batch jobs to access the database (APAR PH04466). Any impacts to DL/I batch jobs that are running during reorganization can be minimized. For more information, see READON keyword.
  • Enhancement to the database unload capability (APAR PH10454). IMS Online Reorganization Facility can unload a database that has logical relationships (including external logical relationships).
  • Reorganize encrypted VSAM databases (APAR PH11473). IMS Online Reorganization Facility can reorganize encrypted VSAM databases and dynamically allocate encrypted data sets for image copy and apply log. For more information, see KEYLABEL keyword.
  • Support IMS management of ACBs (APAR PH11847). When the IMS management of ACBs is enabled, IMS Online Reorganization Facility can refer to database definitions in the IMS catalog directory instead of the DBD library. For more information, see Considerations for the IMS management of ACBs.
  • Reorganize databases that have external logical relationships (APAR PH33045). IMS Online Reorganization Facility can initiate multiple subordinate address spaces to process multiple databases in parallel. Each subordinate address space is a started task that executes the subordinate address space procedure named HRFSUB. For more information, see Considerations for external logical relationships and Defining the subordinate address space procedure.