User Requirements Minimize the migration time frame and disruption of the corporate mail system. Support conversion of mail and file attachments. Preserve bulletin boards and private folders. Conduct phased migration, first moving mailboxes and later importing user data. Establish seamless coexistence during a longer-term migration.
Some organizations adopt a slow pace with system migrations, working out issues of coexistence.
Other organizations migrate quickly, minimizing the coexistence time frame and disruption to the business. From a project-planning standpoint, it is necessary to perform migrations quickly and focus on ways to optimize a rapid deployment rather than spend too much time on coexistence issues. Although the base services of the Migration Wizard meet some user and administrative requirements, you'll need to implement specific configuration steps for others. This reduces the number of servers and keeps mail among users of an organizational or business unit on the same server, increasing delivery performance and reducing LAN traffic. Exchange easily accommodates thousands of users on a single server with sub-second response time.