JOB05 in Configuration allocates the SYSCTL file.. When is this dataset populated?

Products

• IDMS
• IDMS - Database
• IDMS - ADS

Issue/Introduction

JOB05 in Configuration allocates the SYSCTL file. 

When is this dataset populated - when you bring the system up for the first time? 

What gets put in the dataset? 

 

 

Environment

Supported Releases of IDMS 

Resolution

Answer: 

CV writes to the SYSCTL file from info in SYSTEM definition at every Startup and every Shutdown. 

DSECT #OPIDS describes the SYSCTL file (and IDMSOPTI). 

Mainly the SYSCTL file contains the SVC number and CV number for the CV and additionally a Nodename/DBname if one is defined for SYSCTL in the system statement. 

It also indicates if the CV is active or has been shutdown.

 

Here is an example of the contents of SYSCTL when the CV is active:

000001   NDOPI   Ðk Ð 4      
       00DCDDC400A90A0FD000  
       0054679000C2AC74E000  
       ______________________
000002                       
       44444444444444440000  
       00000000000000000000  

Here is an example of the contents of SYSCTL when the CV has been shutdown:

000001     OPIX  Ðk Ð 4
       0044DDCE00A90A0FD000 
       0000679700C2AC74E000