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Get high speed database loading and more
IMS™ High Performance Load for z/OS® reduces CPU and runtime for certain applications and the loading of IMS databases. It analyzes database performance and prepares reports that contain statistics about space use and segment pointers. It creates the indirect list data set (ILDS) of a High Availability Large Database (HALDB) that is compatible with the one created by IMS standard IMS HD Reorganization Reload utility.
IMS High Performance Load consists of the IMS HP Load utility, the Physical Sequence Sort for Reload utility and the Bitmap Resetter utility. It also provides the load application programming interface (Load API).
Benefits
| Achieve high performance | IMS High Performance Load for z/OS is designed to provide high-performance processing by default parameter settings. You can get optimized performance on each reorganization job. |
| Get greater ease of use | Avoid writing DD statements for a database data set because IMS HP Load can dynamically allocate a database data set for a full-function database and HALDB. |
| Acquire more data compatibility | Data that are created by IMS HP Load, such as the DFSURWF data set, are compatible with IMS standard utilities. |
| Save time | IMS HP Load does not require HALDB partition data set initialization before reloading. For partitions not populated by any segment during reload, IMS HP Load initializes the partition data set. |
| Gather more data | IMS HP Load provides statistical data that is needed for database tuning tasks and space analysis tasks. |
| Gain flexibility | IMS HP Load accepts multiple file input formats and supports compressed formats. |
Learn more about IMS High Performance Load for z/OS
What does IMS High Performance Load for z/OS do?
IMS™ High Performance Load for z/OS® consists of the IMS HP Load utility, the Physical Sequence Sort for Reload utility and the Bitmap Resetter utility. It also provides the Load application programming interface (Load API).
| Supported database organizations | IMS HP Load provides a complete set of high performance reorganization reload procedures for these database organizations: 1) HDAM (Hierarchical Direct Access Method), 2) HIDAM (Hierarchical Indexed Direct Access Method), 3) HISAM (Hierarchical Indexed Sequential Access Method), 4) SHISAM (Simple Hierarchical Indexed Sequential Access Method), 5) PHDAM (Partitioned Hierarchical Direct Access Method) and 6) PHIDAM (Partitioned Hierarchical Indexed Direct Access Method). |
| IMS HP Load utility | IMS HP Load provides high performance reload processing for databases. The utility is a performance replacement of the IMS HD Reorganization Reload utility (DFSURGL0). The IMS HP Load utility supports various database organizations. It creates the indirect list data set (ILDS) of a HALDB that is compatible with the one created by IMS standard IMS HD Reorganization Reload utility. Also, the utility provides reports that contain statistics about space use and segment pointers. |
| Load API | IMS HP Load provides the Load application programming interface (Load API). By using the Load API, you can run the initial load process much faster than that of IMS DL/I. |
| Physical Sequence Sort for Reload | The utility sorts an unloaded database data set that is produced for an HDAM database to reduce the elapsed time required to reload the database. It also sorts an unloaded database data set for HDAM, PHDAM, HIDAM, PHIDAM, HISAM or SHISAM databases. The utility also provides reports, for use in the tuning analysis of the randomizing parameters. |
| Bitmap Resetter | The Bitmap Resetter utility can be used to adjust the bitmap of an HDAM, HIDAM, PHDAM or PHIDAM database to accommodate denser packing of the database blocks. |
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Document Information
Modified date:
31 August 2020
UID
ibm16299231