EV7 to EV10 Upgrade Path
I am starting a project that will upgrade Exchange from 2003 to 2010 SP3
About 7,000 mailboxes in total.
The Customer has a mix of Outlook 2003 and 2010 clients
They have EV7 with about 1.3TB of archived mail.
I am looking for the upgrade path for the EV environemnt to get to EV10 with the least possible downtme.
So far searching the site has not got me what i am looking for and my guess is that this is not a 20 minute hit enter and wait thing so it would be nice if there was a roadmap that may point me in the right direction as well as the best upgrade strategy and processes.
Thanks in advance for the help.