Skip to main content

Posts

Showing posts from January, 2011

Default Replication Interval

Default replication intervals are five minutes between domain controllers in the same site, and once every three hours between domain controllers in different sites (minimum 15 minutes).

REPADMIN /SHOWREPS %UPSTREAMCOMPUTER%
REPADMIN /SHOWREPS %DOWNSTREAMCOMPUTER%

what is Active Directory!!

Windows 2000 Active Directory data store, the actual database file, is %SystemRoot%\ntds\NTDS.DIT. The ntds.dit file is the heart of Active Directory including user accounts. Active Directory's database engine is the Extensible Storage Engine ( ESE ) which is based on the Jet database used by Exchange 5.5 and WINS. The ESE has the capability to grow to 16 terabytes which would be large enough for 10 million objects. Back to the real world. Only the Jet database can maniuplate information within the AD datastore.
For information on domain controller configuration to optimize Active Directory, see Optimize Active Directory Disk Performance

The Active Directory ESE database, NTDS.DIT, consists of the following tables:

Schema table
the types of objects that can be created in the Active Directory, relationships between them, and the optional and mandatory attributes on each type of object. This table is fairly static and much smaller than the data table.
Link table
contains link…