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. Example use cases include:

Remove archive log data sets that are outdated or no longer exists.

Recover from bad DEFINE_LOG commands.

Syntax

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

F proc_name,DELETE_LOG|DELLOG DSNAME=log_dataset_name

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

DELETE_LOG|DELLOG DSNAME=log_dataset_name END

The following table describes the DELETE_LOG parameters:

Parameter	Description	Valid Values
DSNAME \| LOG_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.
`proc_name`	Specifies the PowerExchange Logger procedure name. Required if you issue the command interactively.	A valid procedure name.

Usage Note

If you run the DELETE_LOG command as part of a batch job, you must stop the PowerExchange Logger before the batch job runs.

Sample JCL

The following sample JCL deletes an archive log data set in batch mode. The question marks (????) represent 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 Note

Sample JCL