Microsoft Exchange Server 2013: Mailbox and High Availability

Using EMS with migration batches

Exchange 2013 mailbox migrations are created using the New-MigrationBatch cmdlet. The input to New-MigrationBatch is a CSV file containing the names of the mailboxes to be moved. The CSV file is created by EAC or by an administrator. It can specify moves to occur between databases in an on-premises deployment, between Exchange deployments in different Active Directory forests (these moves are always initiated from the target forest), from an on-premises deployment to a cloud platform such as Office 365 (a process that Microsoft calls on-boarding), or indeed from the cloud to an on-premises deployment (logically, off-boarding). The cmdlet can also be used to create batches of mailboxes to be migrated from an IMAP ...