ICOM getting a abended U0503

Products

• CA 7 Workload Automation

Issue/Introduction

CA7ICOM is abending at startup with a U0503. What caused this abend?

Cause

The problem is caused when using a submit data set and the DD statement for the submit data set defined to ICOM is not initialized in the communications data set (UCC7CMDS).

Resolution

You must the CA00N700 job from your.JCLLIB to initialize the communication data set with the UCC7SUBx DD name(s). This requires CA 7 and all ICOMs associated with the CA 7 instance to be down at the time this job run.

Below is a sample JCL to init the communications data set:

//CMDSI   EXEC  PGM=SASSCDSI                            
//STEPLIB       DD  DISP=SHR,DSN=your.ca7.CAL2LOAD
//SYSPRINT    DD  SYSOUT=*,DCB=BLKSIZE=133                 
//UCC7CMDS DD  DISP=OLD,DSN=your.ca7.COMMDS  
//SYSIN          DD  DISP=SHR,DSN=your.CA7.JCLLIB(CDSIDECK)                                
//               

Sample of the CDSIDECK:  

*CDSINIT*         
*ICOMCPU* CA11CA31
*CPU*     UCC7SUB1
*CPU*     UCC7SUB2