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Exchange 2007 System Tech Tip - 1/30/2008

by Don Fuller

Cluster Continuous Replication provides the availability to replicate through asynchronous log shipping all of the databases on an Active Exchange 2007 Mailbox Server to a Passive Exchange Mailbox Server. This design requires that the Clustered Servers reside within the same subnet.
The majority of Exchange Server houses cannot use this technology for Disaster Recovery at a remote site for various reasons:
·          The subnet is at maximum limit.
·          The routers are not or cannot be programmed to forward to a local address that is actually remote.
·          There are encryption systems between the Data Center and the remote Disaster Recovery site.
The Solution: Plan and wait for Exchange 2007 SP1. SP1 includes a new High Availability Feature called Standby Continuous Replication (SCR).
Using SCR , storage group data (on a per-storage group basis) can be replicated to remote standby servers or clusters. This feature does not require
the recovery server to be on the same subnet.

About the Author

Don Fuller is the Senior Technical Instructor and Senior Design Engineer at Netlan Technology Center. With over 30 years experience in the IT industry, Don has a wealth of knowledge drawn from his varied positions including: - Technical Support Engineer - Applications Engineer - Test Engineer - Technical Trainer - Systems Engineer - Sr. Technical Editor for Sybex books. Don’s consulting projects include the design and implementation of Active Directory Systems, Risk Enterprise Systems, Exchange Systems, public/private DNS Systems and Windows NT Systems. Don currently holds and maintains over 20 Computer Certifications including 3 MCSE’s.

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