Dirsync Scheduling

Directory synchronization occurs in cycles. As a result, changes that occur in one secondary directory (SD) between cycles are not reflected immediately in other SDs until the next cycle is complete. The time between synchronization cycles is scheduled by adding and deleting schedule entries. The directory synchronization is done in three phases:

		Client export
		Server update
		Client import

Client Export

During this phase, changes are issued to each secondary directory to reflect revisions that have occurred elsewhere. Unauthorized changes are undone. It is recommended that the Client Export phase occurs one half hour before the Server Update.

Server Update

Updates from each of the secondary directories are filtered and mapped into the format of the central directory. The update should be scheduled one half-hour after the client export phase.

Client Import

During this phase, changes that have occurred since the last synchronization cycle are resolved by comparing each secondary directory to its state at the end of the previous synchronization cycle. Client import phases for different e-mail systems should be scheduled one half hour after the Server Update phase.