Exchange Logs Files growth, already check the option "Enable Circular Logging"

M Akhtar 1 Reputation point
2021-11-12T07:18:25.207+00:00

Dear All,

We have Operating System Windows Server 2012R2 in which Exchange 2010 SP3 has been installed, we have a question is that the Transaction log files size has been increased, as we have already enabled the circular logging option, please suggest us how can i reduced the log files size.

Thanks in Advance.

Regards,
Akhtar

Exchange | Exchange Server | Management
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3 answers

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  1. M Akhtar 1 Reputation point
    2021-11-13T07:20:57.19+00:00

    We have just to say, we have enabled circular logging on particular database folder, we have check there is one folders i.e. CatalogData and database file .edb and logs files the size of mention files and folder is given below;

    CatalogData = 48.2 GB, .edb = 952 GB, Logs = 1.11 TB

    My Question is, if we enable the circular logging option then why the transaction logs size is going to 1TB, how is we reduced that size, please suggest.

    Regards,
    Akhtar

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  2. Andy David - MVP 157.9K Reputation points MVP Volunteer Moderator
    2021-11-13T15:39:21.37+00:00

    Is this a stand-alone Server? Did you dismount and re-mount the database?
    Are there any backups or anti-virus software running?

    https://learn.microsoft.com/en-us/exchange/configure-circular-logging-for-a-mailbox-database-exchange-2013-help

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  3. KyleXu-MSFT 26,396 Reputation points
    2021-11-15T06:18:48.593+00:00

    @M Akhtar

    I think this phenomenon is caused by the database being too large. The limitation for Exchange database is 1024G, the size of your database is already close to this value.

    I would suggest you create multiple databases, and migrate a part of the mailboxes. Then, dismount the original database and use ESEUTIL tool to defragment the database files.

    ESEUTIL /D  
    

    After that, mount this database and enable Circular Logging again.

    About the CatalogData file, it is the index folder for Exchange database, they can be regenerated after being deleted. You could delete them to free up some space. Since your database is too large, it may take a long time to rebuild.

    For a better performance, it is recommended that you control the database below 500G.


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