Tag: HighWaterMarkVector

Active Directory Replication Overview & USN Rollback: What It Is & How It Happens

If you have experienced event id #2095, then you understand how a USN Rollback can negatively affect AD consistency. What is a USN? The USN (Update Sequence Number) is an Active Directory database instance counter that increments every time a single change is committed to the AD database on a Domain Controller. The USN is …

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