Reorganization and repair of an icf catalog while open and in-use in a digital data storage system

Abstract

MVS mainframe computer systems employ the ICF (Integrated Catalog Facility) catalog environment to manage numerous data sets. To provide nearly continuous availability of those data sets, the BCS catalog (250,270) must be re-organized while leaving the catalog open to access by applications. To perform a re-org while open, a data CI correlation table (500) can be constructed (314) and used to lay the data CIs into a backup file in logical order (316), so that they can be loaded into the new BCS catalog (324) without sorting, thereby reducing downtime.

Description

RELATED APPLICATIONS

[0001] This application is a continuation of and claims priority to co-pending U.S. patent application Ser. No. 10 / 783,835, filed Feb. 20, 2004.COPYRIGHT NOTICE

[0002] © 2003-2004 Mainstar Software Corporation. A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. 37 CFR §1.71(d). TECHNICAL FIELD

[0003] This invention is in the field of digital data storage systems and, more specifically, pertains to storage systems that employ ICF catalogs for managing and using data sets. BACKGROUND OF THE INVENTION

[0004] The IBM MVS® mainframe operating system has evolved into the primary data server for very large enterprise computer system environments. This new and ...

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