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IBM PowerHA SystemMirror for i: Using Geographic Mirroring (Volume 4 of 4) by David Painter, Peter Mayhew, Sabine Jordan, Edward Grygierczyk, David Granum

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Switching a geographic mirroring environment
This chapter describes the geographic mirroring synchronization process and shows how to perform a planned switch of a geographic mirroring environment between production and backup nodes. In addition, the procedures to recover from an unplanned failover are covered.
This chapter describes the following topics:
5.1 Synchronization
When geographic mirroring is resumed after a suspend or detach, ...

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