The following events take place when the JET database engine detects and out of disk space condition on the log file drive:
- The JET database engine refuses to take any more transactions from the Information Store service or Directory service.
- The Information Store will rollback all uncommitted transactions (this is done with the use of the reserved log files RES1.LOG and RES2.LOG).
- The Information Store shuts down gracefully, meaning all uncommitted transactions in the log files are flushed into the database and the databases are in a consistent state.
If log files are filling up your drive, you may want to find out whether they are being purged after backups.
For more information on how to determine which log files can safely be deleted, click the following article number to view the article in the Microsoft Knowledge Base:
240145�
How to remove Exchange Server transaction log files