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

DCOLLECT OutputDCDLBKDT The system timestamp when the data set was backed up last. Thisfield is an 8-byte binary value; it is only valid for SMS data sets.The format is STCK.DCDDCLAS Data class name 3DCDDCLNG The actual length of the data class name inDCDDATCL.DCDDATCL The data class name field.DCDSCLAS Storage class name field 3DCDSCLNG The actual length of the storage class name inDCDSTGCL.DCDSTGCL The storage class name.DCDMCLAS Management class name field 3DCDMCLNG The actual length of the management class name inDCDMGTCL.DCDMGTCL The management class name.DCDSTOGP Storage group name field 3DCDCCSIDDCDUDSIZDCDCUDSZDCDBDSZDCDOVERADCDSGLNG The actual length of the storage group name inDCDSTGRP.DCDSTGRP The storage group name.The coded character set identifier. This field is used to identify thecoded character set to be used with this data set.Data set size before compression. This field is applicable toextended format data sets. If this value and DCDCUDSZ are bothzero, it is an indication that the data set is not compressed.Data set size after compression. This field is applicable to extendedformat data sets only, and refers only to user data within the dataset. That is, any system data written to the data set is not includedhere. If this value and DCDCUDSZ are both zero, it is anindication that the data set is not compressed.Data set sizes that are not valid in either or both of DCDUDSIZ orDCDCUDSZ. These fields might contain non-zero values, butshould not be used. This field is applicable to non-VSAM extendedformat data sets only.VSAM space available for release. This is the difference betweenthe High Used Relative Byte Address (HURBA) and the HighAllocated Relative Byte Address. This field is computed for allVSAM data sets but only applies to data sets eligible for partialrelease (VSAM Extended Format data sets). The space value isrepresented in bytes.VSAM Association Record FieldThis is the section for VSAM data set association information. This record ties dataand index components to the sphere name and provides other VSAM-relatedinformation. The record type for this record is A.3. Only available for the D record of the dataset residing on the first volume of a multi-volume dataset.Appendix F. Interpreting DCOLLECT Output 473