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

ALTERTYPEIMSIf you want to use BWO processing in an Information Management System(IMS) environment, use the TYPEIMS parameter.Abbreviation: TYPEINOUse this when BWO does not apply to the cluster.Exception: If CICS determines that it will use the specification in the CICSFCT, the specification might override the NO parameter for CICSprocessing.CATALOG(catname)Specifies the catalog containing the entry to be altered.To assign catalog names for SMS-managed data sets, you must have access tothe RACF STGADMIN.IGG.DIRCAT FACILITY class. See “StorageManagement Subsystem (SMS) Considerations” on page 2 for moreinformation.catnameIs the name of the catalog that contains the entry.Abbreviation: CATCCSID(value)Is the Coded Character Set Identifier attribute; it identifies:v Encoding scheme identifierv Character set identifier or identifiersv Code page identifier or identifiersv Additional coding required to uniquely identify the coded graphic usedYou can use Coded Character Set Identifier (CCSID) only for system-manageddata sets. If the CCSID parameter is not in the catalog at the time ALTER iscalled, it is created.The value for CCSID can be specified in decimal (n), hexadecimal (X''), orbinary (B''). The acceptable range of values is 0 (X'0’') to 65535 (X'FFFF’').ECSHARING|NOECSHARINGIndicates whether sharing this catalog can be performed through the couplingfacility.ECSHARINGEnhanced catalog sharing (ECS) is allowed. ECS is a catalog sharingmethod that makes use of a coupling facility to increase the performance ofshared catalog requests. Please read about ECS in z/OS DFSMS: ManagingCatalogs before enabling ECS for a catalog.Abbreviation: ECSHRNOECSHARINGEnhanced catalog sharing (ECS) is not allowed. This is the default. Catalogsharing is performed, but the ECS sharing method is not be used.Abbreviation: NOECSHREMPTY|NOEMPTYSpecifies what is to happen when the maximum number of generation datasets (GDSs) has been cataloged. If the generation data group (GDG) is full (theLIMIT is reached), this attribute determines whether all GDSs or just the oldestGDSs are processed.Chapter 5. ALTER 59