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Exchange 2010 DAG

Posted on 2011-09-19
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Can someone give me some information about how data replication really works between databases on exchange 2010 DAG. My understanding is that there is an initial database copy when first setup replica and then you have transaction logs played between and replicated between the databases. How much bandwidth utilization are we talking about ? let's say your data has already been replicated, how much traffic should you expect across WAN link if you have 500 users in different sides of this WAN link. what if you have different sites across the country. Can you guys give me some information about inner of data replication in exchange 2010.


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Question by:Delmiroc
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your understanding is correct first the edb file is copied then all transactional logs are shipped from the active to the passive server. each log file has the size of 1megs

as far as bandwidth is concerned it depends on how many log files are generated, if you have exchange already in place the easiest way is to check all the log files generated in the last 24 hours that's the amount you will need to ship to the other location per day
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