Ibm DS8000 Manuel d'utilisateur télécharger pdf (Page 151)

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101

Chapter 7. Copy Services 129

Figure 7-11 z/OS Global Mirror

z/OS Metro/Global Mirror (3-site z/OS Global Mirror and Metro Mirror)

This mirroring capability uses z/OS Global Mirror to mirror primary site data to a location that

is a long distance away and also uses Metro Mirror to mirror primary site data to a location

within the metropolitan area. This enables a z/OS 3-site high availability and disaster recovery

solution for even greater protection from unplanned outages. The z/OS Metro/Global Mirror

function is an optional function. To use it, you must purchase both of the following functions:

򐂰 Remote Mirror for z/OS (2244 Model RMZ)

򐂰 Remote Mirror and Copy function (2244 Model RMC) for both the primary and secondary

storage units

Server write

Write acknowledge

Write

ashynchronously

Primary server

System

Data

Mover

Secondary server

System Data Mover is

managing data consistency

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Ibm DS8000 Manuel d'utilisateur Page 151

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