CDC Guide for z/OS

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Deleting Log Data Sets from the ERDS

The DELETE_LOG command deletes all information about a specified log data set from the emergency restart data set (ERDS).

You can run the DELETE_LOG command as part of a batch job or interactively, whenever you need to delete a log. For example, run this command to delete outdated archive log data sets.

Syntax

To issue the DELETE_LOG command with the MVS MODIFY command, use the following syntax:

F proc_name,DELETE_LOG DSNAME=log_dataset_name

To issue the DELETE_LOG command as part of a batch job, use the following syntax:

DELETE_LOG DSNAME=log_dataset_name END

The following table describes the DELETE_LOG parameters:

Parameter	Description	Valid Values
DSNAME	Specifies the fully qualified data set name for the log data set for which to delete information from the ERDS.	A data set name up to 44 characters in length.
END	Indicates that the input for this command is complete. Required if you include the command in a batch job.	Not applicable.
`proc_name`	Specifies the PowerExchange Logger procedure name. Required if you issue the command interactively.	A valid proc name.

Usage Notes

If you use the MVS MODIFY command to run the DELETE_LOG command in interactive mode, the PowerExchange Logger can continue running.

If you run the DELETE_LOG command as part of a batch job, you must stop the PowerExchange Logger before the batch job runs. Also stop any ECCR that is running against data sources for which the PowerExchange Logger logs changes.

Sample JCL

The following sample JCL deletes an archive log data set in batch mode. Replace the question marks (????) with the PowerExchange Logger ID.

//jobname JOB 
//DEFLOG   EXEC PGM=EDMLC000,PARM='????,BATCH'                          
//STEPLIB  DD DISP=SHR,DSN=HLQ.LOAD              <=== PWX LOAD 
//EDMPARMS DD DISP=SHR,DSN=YOUR.USERLIB          <=== EDMSDIR,EDMUPARM  
//ERDS01   DD DISP=SHR,DSN=YOUR.????.ERDS01      <=== PRI RESTART DSN   
//ERDS02   DD DISP=SHR,DSN=YOUR.????.ERDS02      <=== SEC RESTART DSN   
//SYSPRINT DD SYSOUT=*                                                  
//SYSIN    DD *                                                         
DELETE_LOG 
    DSNAME=archive_log_dataset_name 
END                                                                     

/*

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Table of Contents

CDC Guide for z/OS

CDC Guide for z/OS

Deleting Log Data Sets from the ERDS

Deleting Log Data Sets from the ERDS

Syntax

Usage Notes

Sample JCL