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Event Id 1646 Active Directory

Concepts to understand: What is a directory service? At level 1, higher-level events are logged as well. Note that Active Directory does not use a file level replication, so the file could be of various size on each Domain Controller in your domain. Now you must wait for the on-line defrag to occur on the NTDS.dit database. have a peek at this web-site

We appreciate your feedback. In Registry Editor, navigate to the Garbage Collection entry in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Diagnostics. Required fields are marked *Comment Name * Email * Website Sponsors: Recent Posts Password strength part 1, the mathematical basics MS16-072 breaks Group Policy ESXi virtual machine network statistics Determine the To see the amount of free disk space that can be made available to the file system by offline defragmentation, you can change the garbage collection logging level so that the

Join 112 other followers Recent Posts How Domain controllers are located inwindows Dependency of Active Directory onDNS How to Kill SQL Threads or Kill UserSessions How to find list of all After you change the logging level, check the Directory Service event log for Event ID 1646, which reports the amount of disk space that you can recover by performing offline defragmentation. Only offline defragmentation can return unused disk space from the directory database to the file system. Read More Articles & Tutorials Categories Cloud Computing Common for all OSes Dial up, ICS, RAS, ADSL General Networking Interviews Network Protocols Network Troubleshooting Product Reviews VoIP Windows 10 Windows 2000

The garbage collection logging level is an NTDS diagnostics setting in the registry. This would both arrange all pages the best possible way, and also to reclaim any empty space inside the database, which could make backup and restore faster and also possible increase Changing the garbage collection logging level from the default value of 0 to a value of 1 results in event ID 1646 being logged in the directory service log. Feedback: Send comments or solutions - Notify me when updated Printer friendly Subscribe Subscribe to EventID.Net now!Already a subscriber?

Start a command prompt with administrative permissions on a domain controller. 2. x 7 EventID.Net See ME319106 for details on this event. When you run the command, an online graph displays the percentage completed. Reply ↓ Pingback: How to compat AD database (offline defragmentation)? | Jacques DALBERA's IT world Leave a Reply Cancel reply Your email address will not be published.

For information about backing up system state, see Introduction to Administering Active Directory Backup and Recovery [lhsad_ADDS_Ops_5]_ADDS_Ops_5. Tip explains how to get manually created replication connection objects in an Active Directory Forest... x 6 Private comment: Subscribers only. Microsoft Customer Support Microsoft Community Forums United States (English) Sign in Home Windows Server 2012 R2 Windows Server 2008 R2 Library Forums We’re sorry.

KEY NAME:HKLM\System\CurrentControlSet\Services\NTDS\Diagnostics\ Entry Name: 6 Garbage Collection\ Value: 1(enabled), 0(disabled) After this has been enabled on a domain controller, an Event ID 1646 will be generated next time the Garbage Collection This means that on Windows 2000 and 2003 you will have to reboot into Directory Services Restore Mode, and on Windows 2008 and R2 you will have to stop the AD During normal operations the Active Directory service will do an online defragmentation of the Active Directory database (always called ntds.dit) each 12 hours. With this information we could make our decision based on fact and not guesses.

This event describes the total amount of disk space that the database file uses as well as the amount of free disk space that is recoverable from the Ntds.dit file through http://0pacity.com/event-id/the-dns-server-was-unable-to-open-active-directory-4000.html When the service is stopped, services that depend on AD DS shut down automatically. Change the Garbage Collection Logging Level to 1 Updated: October 15, 2008Applies To: Windows Server 2008, Windows Server 2008 R2 Garbage collection in Active Directory Domain Services (AD DS) is the process of Type the same password and press Enter again. 6.

For more information about restartable AD DS, see the Windows Server 2008 Restartable AD DS Step-by-Step Guide (http://go.microsoft.com/fwlink/?LinkId=88649). English: Request a translation of the event description in plain English. Here we can note the amount of space that would be reclaimed from an offline defrag. Source On domain controllers that are running Windows Server 2008, offline defragmentation does not require restarting the domain controller in Directory Services Restore Mode (DSRM), as is required on domain controllers that are running

Type set dsrm password and press Enter. Membership in Domain Admins, or equivalent, is the minimum required to complete this procedure. Then Event 1646 shows up in the Directory Service Log.

Server Geeks By - Habibar Rahman Sheikh Menu Skip to content HomeAbout Server Geeks Tag Archives: Event ID 1646 Garbage Collection LoggingLevel 0 Posted on April 21, 2013 by Habib Sheikh

The top value is the number of MB that the offline defrag would recover, here almost half the database size. Share this:Click to share on Twitter (Opens in new window)Share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Google+ (Opens in new The integrity command in Ntdsutil.exe detects binary-level database corruption by reading every byte in the database file. Type quit and press Enter.

This will increase the logging from the Garbage Collection process which runs together with the online defrag. network administrator tools Network Configuration Management Network inventory software Network Mapping Network monitoring / management Network Traffic Monitoring Patch Management Remote control software SharePoint Tools Software distribution and metering Storage and In the Value data box, type 1, and then click OK. have a peek here All rights reserved.

You can use the links in the Support area to determine whether any additional information might be available elsewhere. Therefore, depending on the size of your Ntds.dit file and the domain controller hardware, the process might take considerable time. How to change the garbage collection logging level Click Start, click Run, type regedit, and then press ENTER. Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you!