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Can someone provide best solution for Exchange 2007 Disaster Recovery &nbsp;to be implemented at DR site , current setup include redundant HUB/CAS and Exchange servers with data in SCC on SAN. Ironport for security and ISA for OWA . Is it highly recommeded to go for exchange &nbsp;2010 , if yes , can pointer to advantge over 2007 can be shared.
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Can someone provide best solution for Exchange 2007 Disaster Recovery  to be implemented at DR site , current setup include redundant HUB/CAS and Exchange servers with data in SCC on SAN. Ironport for security and ISA for OWA . Is it highly recommeded to go for exchange  2010 , if yes , can pointer to advantge over 2007 can be shared.

Exchange 2007 Disaster Recover

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.

Disaster Recovery

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.