What is the difference between transport Dumster in exchange 2007 and Shadow redundancy in exchange 2010
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Answer / diptiranjan
Transport dumpster is a feature built into Exchange Server 2010 HUB transport role and designed to minimize data loss during mail delivery to a DAG in a lossy failover scenario. The transport dumpster is stored inside the mail.que file. It's only available for message delivery in a cluster continuous replication (CCR) environment and doesn't address potential message loss when messages are in transit between Hub Transport and Edge Transport servers.
With shadow redundancy, the deletion of a message from the transport databases is delayed until the transport server verifies that all of the next hops for that message have completed delivery. If any of the next hops fail before reporting back successful delivery, the message is resubmitted for delivery to that next hop
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Answer / tauseef
Transport dumpster comes in to picture when replication files are written to the member server of DAG and there is a failure during the replication. Transport dumpster will store all the information of replication and it will write back when the member server is up. It will store information until the time which is specified in the console.
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