COPYCAT; IBM OS system catalog utility routine. [IBM360,370; Assembly language]
COPYCAT is an OS utility program designed to produce an efficient system-wide catalog which may reside on many volumes. Substantial improvement in performance may also be obtained on a system with only a single catalog. First, catalog entries from many different catalogs may be redistributed to equalize the load on each catalog. Second, each individual catalog is restructured in a way designed to minimize the I/O time required for searching and updating. Redistribution and restructuring parameters are under user control. Model DSCB's for generation data groups and alias entries are also processed. Catalogs on all direct access devices, including data cells, are supported. Backup copies may also be made.IBM360,370; Assembly language; OS/MVT, OS/MFT, OS/VS1 and OS/VS2 Release 1; A large region size is recommended since COPYCAT will use all of the core available to it for buffers..
- Research Organization:
- Argonne National Lab., IL (USA)
- OSTI ID:
- 6152710
- Report Number(s):
- ANL/NESC-646; ON: DE83048646
- Resource Relation:
- Other Information: Maximum of - 32 catalogs defined as input COPYCAT has been designed for a catalog system where a high-level index name, other than a CVOL pointer, may only appear in one catalog
- Country of Publication:
- United States
- Language:
- English
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