Managing an Active Directory Performance Lesson 3 Review

Published: 17th May 2011
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1.You discuss performance monitoring with Margie. During your conversation, you learn no one has ever used MCSE System Monitor to check the performance of her
domain controllers. Margie wants to know why anyone would even bother. What would you say to her?
Performance monitoring can be used to identify and troubleshoot issues. However, monitoring performance is not as useful if you don't know what acceptable or normal levels of any given counter should read. You can only determine what is normal and acceptable on a particular net?work by taking a performance measure when everything seems to be operating normally and acceptably. After you collect that data, you should periodically check performance. Use the information you collect to establish a baseline of performance data that indicates what "normal" operating conditions are for your network. That way, when something changes, you will hopefully be able to identify what is no longer "normal."
2.Margie tells you that some of her domain controllers have multiple hard disks. She tells you that the additional one or two physical hard disks are not being used. She wants to know if they can be used in some way to improve the microsoft exams performance of Active Directory. What would you tell her?
You could improve performance by moving the Active Directory database (NTDS.DIT) to the second physical hard disk. You could further improve performance by moving the Active Directory log files to a third physical hard disk. This could be done using the Ntdsutil tool.
3- Margie says that her local domain controllers get very slow sometimes. She theo?rizes that this could be due to the other domain controllers synchronizing lots of information with her local domain controllers. What could you monitor to help answer Margie's question?
You would certainly use System Monitor in this case. In addition to the typical server performance monitors, such as Server, Memory, and Pages/sec, you should look at DRA Inbound Objects Applied/sec, which indicates how much replication update activity is occurring on the server as a result of changes generated on other servers.
Margie sends you to Cairo, Egypt, to troubleshoot a couple of domain controllers in her Egypt location. You find some event messages concerning replication
events, but you'd like to see more detailed information than what is in the log now. What can you do?
Increase the logged information by increasing the diagnostic logging levels for replication events (and also possibly the KCC) in the registry of the domain controllers. You can also use the Replication Monitor (Replmon) or Repadmin command-line tool to learn more about replication performance. You can also use the Ntfrsutl to query the FRS services on local MCTS benefits and remote domain controllers to determine if they are functioning correctly.

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