Updating Exchange Cache' is taking a long time when migrating mailboxes using Exchange Migrator (EM) (NETIQKB5600)

  • 7705600
  • 02-Feb-2007
  • 06-Feb-2008

Resolution

goal
Updating Exchange Cache' is taking a long time when migrating mailboxes using Exchange Migrator (EM).

fact
Exchange Migrator 1.x

fact
Exchange Migrator 2.x

cause
This lag occurs because EM needs to login to each mailbox it migrates in order to stream the mail across. In order for EM to log in to the mailbox, the Recipient Update Service (RUS) needs to run against the objects. This may take up to 30 minutes, depending on the network and RUS configuration.

note
Even if you force RUS to run manually it may take some time, depending on the size of Active Directory.

Additional Information

Formerly known as NETIQKB5600