Google Apps Directory Sync Administration Guide - Manual (Page 18)

18 Release 4.0.2
Global Go Live
Users: All users active in Google Apps.
In the Global Go Live phase, all users become active and begin using Google
Apps for daily business. Mail flow is routed entirely to Gmail, users schedule their
activities in Google Calendar, and day-to-day user activities run in Google Apps.
After your Global Go Live date, data from legacy systems may be migrated into
Google Apps, or may be left on legacy servers and checked when needed.
Directory Sync: You can set up GADS to import organizations, users, aliases,
profile information, groups, contacts, and calendar resources so that your Google
Apps account is populated with the same data you have on your LDAP directory
server.
Prepare for your Go Live date. The initial synchronization of a Go Live date can
take several cycles of configuration and tests, since there may be a great deal of
data to synchronize. Be prepared for an extended synchronization, and try to run
your synchronization during off-business hours to avoid consuming network and
system resources during peak hours.
Note also that shared contacts can take up to 24 hours after synchronization to
show up in Gmail autocomplete.
During your rollout, you may decide to split your synchronization into phases to
avoid exceeding any search size limits on your directory server.
Maintenance
Users: Updated to maintain changes between your LDAP directory and
Google Apps.
After you have set up Google Apps and your users are live with the product,
continue to update Google Apps to reflect any changes on your LDAP directory.