Database Recovery When Data Sharing.(DB2 for MVS)(Product Information)(Technical)

Enterprise Systems Journal,  February, 1999  by Pande, Sharad K.

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Version 4 of IBM's DB2 supports a data sharing environment in which multiple DB2 subsystems read and update tables simultaneously. Data sharing is a major enhancement, but introduces new complexities in database recovery. It offers improved availability, scalability and flexibility, supporting a sysplex environment parallel processing; and Coupling Facility (CF) structures.

DB2's Catalog and Directory set up for the first member of a data sharing group becomes the catalog/directory facility for the entire group. Each subsystem is a member, sharing databases, tablespaces, tables, indexes, ...

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