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

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

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

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DEFINE CLUSTERRECATALOG|NORECATALOGIndicates whether the catalog entries <strong>for</strong> the cluster components are to bere-created from in<strong>for</strong>mation in the VVDS.RECATALOGRecreates the catalog entries if valid VVDS entries are found on theprimary VVDS volume. If they are not, the command ends.Catalog entries can be re-created only in the catalog specified in the VVRexcept <strong>for</strong> entries that are swap space, page space, or SYS1 data sets.The RECORDSIZE parameter is required when doing a DEFINERECATALOG of a variable-length relative record data set (VRRDS).Identification of RECATALOG requires that NAME, INDEXED, LINEAR,NONINDEXED, NUMBERED, and VOLUMES be used as they were whenthe cluster was originally defined. If you specify RECATALOG, you are notrequired to use CYLINDERS, RECORDS, or TRACKS.If ATTEMPTS, AUTHORIZATION, CATALOG, CODE, FOR, MODEL,OWNER, or TO parameters are used during the original define, they mustbe respecified with RECATALOG to restore their original values; otherwise,their default values are used.When you use the TO parameter with RECATALOG, only the cluster’sexpiration date is updated. The DATA and INDEX components are notupdated.If the RACF user has ADSP specified, a profile is defined to RACF <strong>for</strong> thedata set being re-cataloged.If the cluster was SMS-managed, the volume serials should be the same asthe volumes actually selected by SMS.The catalog <strong>for</strong> the entries being re-created must have the same name asthe catalog that contained the original entries.Abbreviation: RCTLGNORECATALOGIndicates that the catalog entries are not re-created from VVDS entries.Catalog entries are created <strong>for</strong> the first time.Abbreviation: NRCTLGRECORDSIZE(average maximum|default)Specifies the average and maximum lengths, in bytes, of the records in the datacomponent. The minimum record size is 1 byte.RECORDSIZE can be given as a parameter of either CLUSTER or DATA.This parameter overrides the LRECL specification on the DATACLASSparameter.For nonspanned records, the maximum record size + 7 cannot exceed the datacomponent’s control interval size (that is, the maximum nonspanned recordsize, 32 761, + 7 equals the maximum data component control interval size, 32768).When you use a record size that is larger than one control interval, you mustalso specify spanned records (SPANNED). The <strong>for</strong>mula <strong>for</strong> the maximumrecord size of spanned records as calculated by VSAM is as follows:MAXLRECL = CI/CA * (CISZ - 10)160 z/<strong>OS</strong> <strong>V1R6.0</strong> <strong>DFSMS</strong> <strong>Access</strong> <strong>Method</strong> <strong>Services</strong> <strong>for</strong> <strong>Catalogs</strong>

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