CA Dynam for VSE User Guide

Tape File Management Utilities
Message paths are accessed by the system using direct physical IOCS and
should be defined as SD files for label purposes. It is recommended that you
locate MACC queue files on physical disk volumes other than those that
contain the Catalog or Audit Trail data sets.
Initializing Multi:ACCESS Queue Files
Use the MACC INITIAL command of the DYNCAT utility program:
MACC INITIAL DDNAME=DYN2CA1
The DDNAME must be one of the PATHID values specified in the DTPATH
option record.
Execute the MACC INITIAL command once for each unique PATHID specified in
the DTPATH option record. When DYNCAT has completed processing, the
message paths will be ready for use.
Note: If any of the participating systems run MVS, the MACC queue files
should be allocated on MVS to ensure inclusion in the MVS Master Catalog.
Performing Catalog Synchronization
Catalog synchronization is a process by which a catalog on one system is
updated with information extracted from another system, so that both systems
maintain the same volume status information.
An extract facility is supplied with each system to convert tape database
information into a common format so that it can be compared to determine if
any discrepancies exist between the two systems. Volumes from each system
are marked as either in active or scratch status.
The synchronization facilities accept the extracts from each system as input
and perform the analysis. All discrepancies are indicated on an exception
report, and the information needed to resolve the discrepancies is written to
two distinct update files, one for each system.
Each system also provides a product-specific update utility used to apply
synchronization information to its respective database. Any updates that
cannot be performed are detailed in error reports. These errors may require
additional research and manual correction.
Chapter 3: Supporting Tape File Management 3–17