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IBM z/OS V2R2: Storage Management and Utilities by Ewerton Waki, Alvaro Salla, Jaqueline Mourao, Jose Gilberto Biondo Jr, Natalia Barros, Keith Winnard

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Virtual Storage Access Method
This chapter describes the following enhancements that are provided at DFSMS V2R2 that apply to the Virtual Storage Access Method (VSAM):
Faster search for Access Method Block List (AMBL)
Support for DB2 greater than 2 M Open clusters
Chained I/O for Spanned Records
Message on all auto dumps
Improved recovery for EOV with non-SMS managed clusters
Dynamic Buffer Addition (DBA) function
Index Record Locking
This chapter includes the following topics:

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