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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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Database performance topics
In this chapter, we provide additional details about database-related performance improvements in IMS.
This chapter contains the following topics:
CICS threadsafe support
Temporary close of VSAM data sets with new extents
5.1 Parallel migration to high availability large ...

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