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System Adapter

END=YES The END parameter is required and must be specified as YES. It is used as a

check for proper macro syntax.

ENQTRY1=10|nn The number of times an external enqueue is to be attempted on the catalog

and audit data set in a multi-CPU environment before the CADC001I message

is issued. If CADC001I appears too frequently in a highly active multi-CPU

shared catalog environment, this value should be increased.

ENQTRY5=255|nnn The number of times an external enqueue is to be attempted on the catalog

and audit data set in a multi-CPU environment before the CADC005D message

is issued and the enqueue is considered to have failed. If CADC005D appears

too frequently in a highly active multi-CPU shared catalog environment, this

value should be increased.

ENQWAIT=5|nn The number of seconds to wait between enqueue tries for the catalog and

audit data set in a multi-CPU environment. The VM user ID waiting for the

enqueue it requested is stopped to allow other processing to continue. In a

multi-CPU environment with CPUs of badly mismatched speeds (for example,

4341 versus a 3090), this value can be adjusted to allow the slower CPU to

access the system files at more frequent intervals. This decreases the wait

time in the DYNAM macro cataloged for the slower CPU.

RECOVER=YES|NO Controls whether Catalog Management should record recovery information for

the CA Dynam/T Catalog in the audit data set.

Note: Assembly of the DYNAM macro results in the creation of the CASAGENA

TEXT file. This file is placed in the CAUSRLIB TXTLIB.

System Adapter

The System Adapter provides the system-dependent routines necessary for

the operation of Catalog Management, DYNVM user functions and

administrator utility programs. It also provides the following services:

 CPU identification

 Lock file I/O

 CA Dynam/T message queue file I/O

 FILEDEF and LABELDEF manipulation routines

 Physical device identification and information

 Product message and unit record I/O

 Data manipulation and conversion

 Product-to-Catalog Management interface

Chapter 2: Catalog Management and System Adapter 2–3

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Memorex MT2028D-BLK User Manual Page 11