CHAPTER 7
Staging for z/OS Optimization
The z/OS and z/VM DASD files supplied by the vendor to create the virtualized mainframe systems allow rapid implementation of mainframe operating systems. These systems provide users access to many of the software and hardware features available in a traditional mainframe environment. However, limitations to the provided base environment include the following:
- Delivered operating system and subsystem updates are
- Provided infrequently
- Updated are for the current IBM release only
- Supplied with interim fixes that cannot be applied easily
- Prone to destroy any customizations that have been made to the system ...
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