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

DCOLLECT OutputDMCCPYTCDMCBKUDCDMCMRETFDMCMRTDYDMCTSCR0 Neither end users nor the Storage Administratorcan perform command backups.1 Only the Storage Administrator can performcommand backups.2 Both end users and the Storage Administrator canperform command backups.This field indicates whether the concurrent copy technique shouldbe used for the incremental backups of data sets associated withthis Management Class. This attribute works in association withDSCASSOC to determine if the data set should retain write accessduring backup. This field is mapped by DMCCPYST, DMCCPYPR,and DMCCPYRQ.0 Standard - Indicates that all data sets are backedup without the concurrent copy technique.1 Concurrent Preferred - Indicates that the concurrentcopy technique should be used for backup. A dataset is backed up without the concurrent copytechnique if it does not reside on a volumesupported by concurrent copy or is otherwiseunavailable for concurrent copy.2 Concurrent Required - Indicates that the concurrentcopy technique must be used for backup. Thebackup is unsuccessful for data sets that do notreside on volumes supported by concurrent copyor are otherwise unavailable for concurrent copy.The name of the backup destination class.Maximum retention flags.DMCRPNOL This flag indicates whether or not a retention limitexists for data sets in this Management Class.1 No limit. This allows an unlimitedretention period or expiration date.0 See DMCMRTDY for this value.This field shows whether the Storage Management Subsystem(SMS) will use the retention period (RETPD) or expiration date(EXPDT) that a user or data class specifies for a data set. If thevalue is 0, SMS will not use the specified retention period orexpiration date.Time since creation flags. The following is specified if the specifiedbit is ’1’.DMCTCYR The number of years that must pass since thecreation date before class transition occurs has beenspecified.DMCTCMN The number of months that must pass since thecreation date before class transition occurs has beenspecified.DMCTCDY The number of days that must pass since thecreation date before class transition occurs has beenspecified.488 z/OS V1R6.0 DFSMS Access Method Services for Catalogs