Hi Everyone, So our Dept just came across some new funding and we decided to replace our existing hitachi SAN and Mailbox servers. Any advice\best practice on how we should proceed with this? Should I swing migrate the mail box servers or build new? SAN copy the exchange DB to New SAN or move mailbox by mailbox? Current environment: Win2003 R2 Enterprise Servers setup for SCC Exchange 2007 SP1 New Dell PowerEdge 1950 Old SAN hitachi New SAN EMC VMX5500 Old SAN hitachi New SAN EMC VMX5500

Up to you, but if it were me, I would build new Windows 2008 R2 SP1 servers and install Exchange 2007 SP3 ( SP1 and SP2 are no longer supported). I would then move mailboxes to the new servers.

If you have enough budgets, the best thing would be going from E07 SP3 to E210 Sp2 etc. (-: , One way of doing it be, building E210 platform on new HW and SAN backend. **Exchange 2010 is entirely different product compared to E2007 , you will see I/O gain up to %50 or more** Creating Test mailboxes and testing everything to make sure it works. Move Pilot users and test again all services ( OWA, Outlook, certs, BES , Active sync etc.) One your pilot move is success schedule rest of the move and plan decommissioning legacy servers. If you are not going to upgrade to E210, initial plan remains the same. Build new servers on the new platformTest to make sure mail flows ( Inbound & Outbound)Test ( OWA, Outlook, active sync etc.)Move pilot users , test all Move rest of the users Start panning decommission work Good Luck ocd Oz Casey, Dedeal MCITP (EMA), MCITP (EA), MCITP (SA) Visit smtp25.blogspot.com Visit Telnet25.wordpress.com This posting is provided AS-IS with no warranties or guarantees and confers no rights.

Hi You had better move mailbox one by one.Terence Yu TechNet Community Support