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IMS 12 Selected Performance Topics by John Schlatweiler, Bhups Narsi, Maiko Mizuki, James Martin, Rafael Avigad, Paolo Bruni

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DBRC
In this chapter, we provide background information to help familiarize or remind you about key aspects of DBRC and its components.
We also explore the main Database Recovery Control (DBRC) enhancements, which are included in IMS 12, that can be used to manage the Recovery Control (RECON) data sets, and affect DBRC.
We review the new DBRC functions that you can use to perform a deeper cleanup when removing obsolete information, and to better control change accumulation (CA) records.
We briefly explore use of parallel RECON access and its performance ...

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