What is New in DFSMSrmm

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Logical Write Once Read Many changes

This chapter discusses the implementation of LWORM retention values at the hardware level and Logical Write Once Read Many (LWORM) processing changes on the z/OS host.

This chapter includes the following topics:

•“Overview” on page 28

•“Adjusting a volume’s expiration date” on page 29

•“Managing data sets” on page 29

•“Keeping LWORM volumes permanently” on page 32

5.1 Overview

DFSMSrmm changed Logical Write Once Read Many (LWORM) processing in APARs OA61055 and OA62765 such that a prematurely scratch LWORM ...

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