%1 (%2) %3Database ‘%4’: Out of B-Tree IDs (ObjectIDs). Freed/unused B-Tree IDs may be reclaimed by performing an offline defragmentation of the database.

Details
Product: Exchange
Event ID: 621
Source: ESE
Version: 8.0
Symbolic Name: OUT_OF_OBJID
Message: %1 (%2) %3Database ‘%4’: Out of B-Tree IDs (ObjectIDs). Freed/unused B-Tree IDs may be reclaimed by performing an offline defragmentation of the database.
   
Explanation

This Warning event indicates that the database is out of B-Tree IDs. Too many objects were created in the database. Free and unused B-Tree IDs can be reclaimed by performing an offline defragmentation of the database.

   
User Action

To resolve this warning, perform an offline defragmentation of the database.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.

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