Hope this post finds you in good health and spirit.
This post is regarding what is an USN and how it increase in AD objects.
An update sequence number (USN) is a 64-bit number in Active Directory that increases as changes occur.
The USN is unique to each DC and has no correlation to a USN on another DC.
Active Directory replication keeps track of every Domain Controller’s USN and uses this information to determine when replication is required. Active Directory has two basic types of writes to the AD database, a replicated write (where the change is performed on another DC) and an originating write (where the change is performed on the local DC). AD Replicates and leverages the information about what changes were performed on which DCs and then replicated out.
So, that’s all in this blog. I will meet you soon with next stuff .Have a nice day !!!
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