Microsoft KB Archive/190703

= XADM: Local Objects Will Backsync From Other Sites =

Article ID: 190703

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q190703



SUMMARY
When you restore the directory to a computer, directory objects not included in the restored directory are repopulated with updated entries by other servers in the organization. This includes the latest objects or entries that originated from the restored server, that were not on the backup.



MORE INFORMATION
This process is called backsyncing. When the directory is restored from backup, a special flag is set in the registry which tells the directory to start backsyncing. At this point, the restored directory contacts all the other directories it is aware of and requests for replication updates starting at zero, but with the "backsync" flag set. This causes the other directories to search their databases for all objects that were sent by the requesting directory.

For example, if you create UserA on Server1, the object for UserA replicates out to other sites. If Server1 goes down, and you restore from a backup that was done before UserA was created, Server1 will backsync and will get the UserA object back from a server which it replicates the object to. This is not limited to the local site; Server1 may receive this object from another site.

Note: The updates will not be sent from another site if a "delete" has been issued for the Directory Replication connector or the object(s).

Keywords: kbinfo KB190703

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