DC170202 when sharing an SVC number between different releases

Products

• IDMS
• IDMS - Database

Issue/Introduction

After IPL and the successful installation of the new SVC with CAIRIM, all old version CV startups abend with this message:

DC170202 CA-IDMS - SVC MUST BE INSTALLED BY CAIRIM BEFORE STARTING THE DATABASE

The old and the new CV’s are using the same SVC number.

Environment

Release: All supported releases.

Resolution

The SVCs are downward compatible so it should be possible to run a CV on an older release with an SVC from a newer release. This requires the SVC to be coded twice in CAIRIM, specifying both releases and with the second occurrence using REFRESH. Here's an example for 18.5 and 19.0:

PRODUCT(CA IDMS) VERSION(GJJ0) INIT(GJJ0INIT) PARM(SVC=248)
PRODUCT(CA IDMS) VERSION(GJI5) INIT(GJJ0INIT) PARM(REFRESH(SVC=248))

The first statement installs SVC 248 with version code GJJ0 (release 19.0). The second statement will insert version code GJI5 (release 18.5) into the CPU while 'refreshing' the same SVC load module.

This will allow 18.5 and 19.0 IDMS CVs to use the same SVC number.

Additional Information

Post-Configuration Tasks (scroll to SVC).
IDMS SVC configurations for multiple IDMS releases