DRMODE={NO}|{YES}When DRMODE=NO is specified, or defaulted, the z/OS® system initial program is being loaded without requesting special resource handling for disaster recovery purposes. The NO specification or default can normally be used for most system IPLs.
The NO option causes z/OS MVS™ System Logger to NOT include DRXRC-type staging data sets in its log data recovery for coupling facility structure-based log streams that had been connected prior to this IPL.
When DRMODE=YES is specified, it indicates that the initial program a recovery system is being loaded as part of a disaster recovery scenario and special handling of certain resources are required. The YES specification is intended to be used when the installation had previously configured their sysplex for specific disaster recovery capabilities.
The YES option causes z/OS MVS System Logger to include DRXRC-type staging data sets in its log data recovery for coupling facility structure-based log streams that had been connected prior to this IPL. That is, Logger will attempt to recover log data for log streams with the STG_DUPLEX(YES),DUPLEXMODE(DRXRC) specification that had been connected prior to the IPL with the DRMODE=YES option. Also refer to Logger confirmation message IXG068D which is issued when the DRMODE=YES option is specified. When this option is specified, it is assumed that the necessary actions had been taken to establish the DASD consistency groups related to the Logger data sets. For more details refer to DRXRC Considerations and DRMODE=YES IPL Option in z/OS MVS Setting Up a Sysplex.
Value Range: Not applicable.
Default Value: NO
Associated Parmlib Member: None