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

DCOLLECT OutputDDCKOFFDDCCOMPDDCMEDIADDCRECTEThe KEYOFF field applies only to key-sequenced VSAM data sets.The field shows, in bytes, the distance from the start of the recordto the start of the key field. Possible values range from 0 to 32760.This field shows the data compaction type used for tape and ismapped by DDCCNUL, DDCNOCMP, and DDCIDRC. Compactionspecifies whether or not mountable tape volumes associated withthis data class are compacted. Compaction increases overall tapecartridge capacity.0 Null Compaction Type1 No Compaction.2 Improved Data Recording.This field shows the type and format of the cartridges used formountable tape data sets used with this data class. and is mappedby DDCMENUL, DDCMEDA1, and DDCMEDA2.0 Media type is null.1 Media 1 - Cartridge System2 Media 2 - Enhanced Capacity Cartridge SystemTapeThis field indicates the number of recording tracks on the cartridgeused for the mountable tape data sets associated with this dataclass.0 Recording Technology is not specified.1 Recording Technology is 18 track.2 Recording Technology is 36 track.Storage Class Construct FieldThis is the section for Storage Class Construct information. These records arecollected when SMSDATA is selected, and Storage Class constructs are defined tothe control data set selected. The record type for this record is ’SC’.NameDSCNMFLDDSCUSERDSCDATEDSCTIMEDSCDESCDSCFLAGSDescriptionThe Storage Class Construct name.DSCNMLEN The length of this construct name.DSCNAME The name of this construct.The USERID of the last person to make a change to this construct.The date that this construct was last changed. The format is″YYYY/MM/DD″ in EBCDIC.The time that this construct was last changed. The format is″HH:MM″ in EBCDIC.The description of this construct.Storage Class Parameters Specification Flags. The following areindicated if the specified bit is ’1’.DSCDFGSPDSCDFAVLThis bit indicates that guaranteed space is to beallocated. Multi-volume data sets can bepre-allocated with the same or different amounts ofspace on more than one volume.Availability options have been specified, seeDSCAVAIL.Appendix F. Interpreting DCOLLECT Output 481