Metro Mirror and Global Copy operations
This chapter describes the operation of Metro Mirror and Global Copy.
Terminology:
Metro Mirror and Global Copy have many common characteristics. For those features that are common to both Metro Mirror and Global Copy, the more general term Peer-to-Peer Remote Copy (PPRC) is used.
The following pairs of terms are used interchangeably in this chapter:
•Primary and source
•Secondary and target
•Logical subsystem (LSS) and logical control unit (LCU)
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This chapter includes the following topics:
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