How to activate and deactivate CA Datacom VSAM Transparency in CICS regions
Article ID: 42620
Updated On:
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Issue/Introduction
Summary:
When working with CA Datacom VSAM Transparency (called VT), there may be an occasion when it is necessary to turn of this functionality within a particular CICS region, without interrupting other work in that region.
This article explains how to disable VT processing in CICS, and then how to enable it again.
Instructions:
To deactivate VT in a running CICS Region, first close the online URTs for the VT databases (DBOC CLOSE transaction), and then issue the CICS transaction:
DVMT DEACT=$CAVT
After issuing this transaction, you should receive a list of the various VSAM file entries, and their status, similar to this:
DVX0006I 'CUSTMR ' FILE IS NOW DEACTIVATED
Following the list of files, you should receive a message that indicates that VT is turned off:
DVX0002I ONLINE VSAM TRANSPARENCY IS NOW DEACTIVATED
DVX0018I TRANSACTION COMPLETED
To activate VT again manually issue the CICS transaction:
DVMT ACT=$CAVT
After issuing this transaction, you should receive a list of the various VSAM file entries, and their status, similar to this:
DVX0005I 'CUSTMR ' FILE IS NOW ACTIVATED
Following the list of files, you should receive a message that indicates that VT is active:
DVX0001I ONLINE VSAM TRANSPARENCY IS NOW ACTIVATED
DVX0018I TRANSACTION COMPLETED
To check the status of VT, issue this CICS transaction:
DVMT INQ=STATUS
This will return one of these messages indicating the status of VT operation:
DVX0003I ONLINE VSAM TRANSPARENCY IS ACTIVATED
DVX0004I ONLINE VSAM TRANSPARENCY IS DEACTIVATED
DVX0034I ONLINE VSAM TRANSPARENCY IS UNAVAILABLE
This "unavailable" message above indicates that VT was not activated automatically at CICS startup and has not been manually activated.
Additional Information:
For more information about these functions, and about CA Datacom VSAM Transparency operation, please refer to:
CA Datacom VSAM Transparency Version 14.0 User Guide
As always, please contact CA Technologies support for CA Datacom if you have further questions.
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