IMS itself does not take any action automatically.  Since the logs are 
as close to a complete audit trail for any user interaction with the IMS 
system, they might need special handling from a retention stand point.  
 From a database recovery perspective, if the DBRC RECON data set for 
the IMS no longer has the log data set name recorded in it, it would 
probably be safe to delete.  An IMS utility can execute a DELETE.LOG 
INACTIVE LIST command which should produce a list of log data sets still 
listed in the RECON data set that are no longer needed to recover a 
database, at which point a formal process to actually delete the 
unneeded log from that list could be run using your favored utility.


On 1/17/2017 5:05 PM, Tony Thigpen wrote:
> Can someone point me in the right direction?
>
> I am reviewing the system VTOCs and I see a lot of IMS log files that 
> contain a date/timestamp in their names. I know they are created by 
> the IMS system using the skeleton proc member ARCHJCL. What I am 
> seeing is that the file was created with a retention period of 45 days.
>
> //DFSSLOGP  DD DSN=IMSVS.SLDSP.%SSID.D%ARDATE.T%ARTIME.V%ARVERS,
> //             DISP=(NEW,CATLG,DELETE),RETPD=45,
> //             UNIT=3390,VOL=SER=SIMS00,SPACE=(CYL,(1,1))
>
> But, I have daily files going back almost 2 years.
>
> My conclusion is that something stopped cleaning up the files "back 
> when".
>
> Is the clean-up of expired files something normally handled within IMS 
> or outside of IMS?
>
>


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