|Message:||%1 (%2) %3The database engine is rejecting update operations due to low free disk space on the log disk.|
This Error event indicates that the database engine has trouble writing to the designated disk because of lack of disk space.
To resolve this error, do the following:
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.