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Backups

Updated: November 25, 2009

Applies To: Windows Server 2008

You should back up the directory database on a domain controller routinely so that if hardware fails or data becomes corrupt, you can quickly recover the information in the database.

Events

Event ID Source Message

2089

Microsoft-Windows-ActiveDirectory_DomainService

This directory partition has not been backed up since at least the following number of days. Directory partition: "DN of the partition" 'Backup latency interval' (days): "Value in days of the backup latency interval" It is recommended that you take a backup as often as possible to recover from accidental loss of data. However if you haven't taken a backup since at least the 'backup latency interval' number of days, this message will be logged every day until a backup is taken. You can take a backup of any replica that holds this partition. By default the 'Backup latency interval' is set to half the 'Tombstone Lifetime Interval'. If you want to change the default 'Backup latency interval', you could do so by adding the following registry key. 'Backup latency interval' (days) registry key: System\CurrentControlSet\Services\NTDS\Parameters\Backup Latency Threshold (days)

Related Management Information

Data (Database, Logs, SYSVOL, Partitions)

Active Directory

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