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IBM DS8870 Copy Services for Open Systems by Bertrand Dufrasne, Sherri Brunson, Don Skilton, Warren Stanley, Alexander Warmuth, Mark Wells

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Global Mirror performance and scalability
This chapter describes performance considerations for planning and configuring Global Mirror for DS8000. The chapter describes the potential impact that the three phases of consistency group formation might have on application write I/Os.
This chapter covers the following topics:
Global Mirror secondary storage system recommendations

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