IMS block level data sharing was introduced in IMS/VS Version 1, Release 2. In IMS/ESA
Version 5, it was enhanced significantly to exploit the benefits of the Parallel Sysplex and
especially
Sysplex Services for Data Sharing, which provide up to 255 IMSs and 32 IRLMs
with the infrastructure and services necessary to share IMS data efficiently and with complete
integrity.
IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology,
SG24-6908,
contains a detailed review of block level data sharing. This volume and this chapter identify ...
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