![]() Ntds.dit – This is the physical active directory database file. Let’s look in to the files in the folder and use of them. As a best practice it is always good if it can be save in different hard disk partition rather than operating system partition. This file location can easily change during the active directory installation. The default active directory database file location is C:\Windows\NTDS. This database file can grow up to 16 terabyte and hold over 2 billion records. ESE indexes the data in the database file. It is uses record-oriented database architecture which provides extremely fast access to records. Active directory database uses the “ Extensible Storage Engine (ESE)” which is an indexed and sequential access method (ISAM) database. because we used to deploy a “database server” first and then add the “databases” to it. I have seen people who had spent thousands of dollars on backup solutions and still couldn’t recover AD in disaster as they didn’t properly backup AD with required components.Īs soon as people here “ database” they think about software like Microsoft SQL, MySQL, Oracle etc. ![]() But if you do not know the use of these and value of these you will not be able to properly plan for disaster recovery in AD environment. ![]() Most of the time engineers will not care about these until they go in to disaster recovery process of crashed active directory environment. ![]() When I talk to administrators, network engineers about the active directory issues, errors most of the time they know how to install an active directory and how to work with in active directory environment but when I ask about terms like AD database, SYSVOL, System state most of the time I get wrong answer or incomplete answer. ![]()
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