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z/OS Global Mirror scalability

This chapter describes some of the areas to consider when setting up z/OS Global Mirror (zGM) configuration to ensure that extended remote copy (XRC) scales appropriately for the environment. You need to address these areas when you modify the scope of the solution.

This chapter includes the following topics:

•z/OS Global Mirror session organization

•Enhanced readers versus single reader

•Write pacing

•Workload-based write pacing

25.1 z/OS Global Mirror session organization

When you start a zGM session and establish ...

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