DFSMSrmm Primer

Chapter 3. Preparing the environment 99

The use of OPT=RESET must be RACF protected. Refer to “Defining

DFSMSrmm resources to RACF” on page 460, for additional information

about the RACF profiles.

3. Shut down the DFSMSrmm subsystem, using the following command:

P DFRMM

When you see the following messages, DFSMSrmm is completely removed from

your system:

IEF352I ADDRESS SPACE UNAVAILABLE

$HASP395 DFRMM ENDED

3.1.14 Setting up DFSMSrmm utilities

There are several DFSMSrmm utilities that you should set up now:

 EDGHSKP is used to perform the following inventory management activities:

– Vital record processing, to determine which volumes to retain and which

volume moves are required, based on VRSs

– Expiration processing to identify volumes ready to be released and

returned to scratch

– Storage location management processing to assign shelf locations to

volumes being moved to storage locations

– Backup and recovery of the CDS and journal

Use the DFSMSrmm backup utilities rather than other backup utilities,

such as the IDCAMS EXPORT command, because DFSMSrmm provides

the necessary serialization and forward recovery functions. DFSMSrmm

backup utilities check whether the CDS is in use, tell the DFSMSrmm

subsystem that backup or recovery is in process, and provide a way to

forward recover.

– Creation of an extract data set

You can produce movement and inventory reports by producing an extract

data set from the CDS, and creating a report from it with the report utility.

 EDGAUD and EDGRPTD can help you in getting information about your

removable media library and storage locations. You can also get security

related information about volumes and data sets defined to DFSMSrmm, and

audit trail information about volumes, shelf assignments, and user activity.

Important: The OPT=RESET operand should only be used during parallel

running or testing, when DFSMSrmm must be completely removed from

the system due to an error, or because you need to reconvert.