z/OS V1R6.0 DFSMS Access Method Services for Catalogs

ALTERFor an SMS-managed GDS, if the NOSCRATCH attribute is used, the GDS isuncataloged from its GDG base and is recataloged outside its GDG base as anSMS non-VSAM entry with the rolled-off status.EMPTYSpecifies that, when the maximum number of GDSs is exceeded, all theGDSs are uncataloged or deleted.Abbreviation: EMPNOEMPTYUsed when the maximum number of GDSs is exceeded. This parameterspecifies that only the oldest GDS is uncataloged or deleted.Abbreviation: NEMPERASE|NOERASEIndicates whether to erase the component when its entry in the catalog isdeleted.ERASEOverwrites the component with binary zeros when its catalog entry isdeleted. If the cluster or alternate index is protected by a RACF generic ordiscrete profile, use RACF commands to assign an ERASE attribute as partof this profile so that the data component is automatically erased upondeletion.Abbreviation: ERASNOERASESpecifies the component is not to be overwritten with binary zeros whenits catalog entry is deleted. NOERASE resets only the indicator in thecatalog entry that was created from a prior DEFINE or ALTER command.If the cluster or alternate index is protected by a RACF generic or discreteprofile that specifies the ERASE attribute, it is erased upon deletion. OnlyRACF commands can be used to alter the ERASE attribute in a profile.Abbreviation: NERASEXCEPTIONEXIT(entrypoint)Is the name of the user-written routine that receives control if an exception(usually an I/O error) occurs while the entry’s object is being processed. Anexception is any condition that causes a SYNAD exit. The object’s exceptionexit routine is processed first, then the user’s SYNAD exit routine receivescontrol.Abbreviation: EEXTFILE(ddname)Specifies one of the following:vvThe name of a DD statement that describes the volume that contains thedata set to be altered.The name of a DD statement that identifies the volume of an entry that willbe renamed. The entry must be a non-VSAM data set or the data or indexcomponent of a cluster, alternate index, or page space.v The name of a DD statement that describes a partitioned data set when amember is to be renamed.If you identify multiple volumes of different device types with FILE, useconcatenated DD statements. If you specify ADDVOLUMES orREMOVEVOLUMES, the volume being added or removed must be identified.60 z/OS V1R6.0 DFSMS Access Method Services for Catalogs