Removing Transaction Log Files in SQL Server Suspends Database Mirroring
Microsoft SQL Server 2008, you can use the database mirroring between two database. It improves the reliability of database and data loss to avoid situations where a database is damaged for some reason. In case of failure, you can back up your database from the mirror database. However, if you accidentally remove the transaction log files on SQL server database, the database mirroring session principle server is interrupted. After this behavior can not be to restore the data from mirror server if the principle server fails. It causes damage to the database and requires SQL Database Recovery be repaired if backup is not available. As a practical example of this problem, consider the scenario adopted : In Microsoft SQL Server 2008 SP1 (Service Pack 1) or Microsoft SQL Server 2008, you configure the mirroring between two databases.
run ALTER DATABASE command with REMOVE FILE clause for the removal of the transaction log files of the SQL Server database on the main server. In the above scenario is aborted database mirroring session and you can not resume. At the same time you receive the following message: "Location:" logmgr. cpp ": 3350
Expression: headLFCB-> lfcb_startOffset
the below error message in SQL Server event log logged: "spid23s A system has failed. Check the SQL Server error log for more details. Typically, an assertion is by a software bug or data corruption. To check for any damage to the database, DBCC CHECKDB. If you send causes agreed to dumps to Microsoft during setup, a mini dump will be sent to Microsoft. An update is available from Microsoft in the latest service pack or in a QFE from Technical Support. " Cause The problem is caused by incorrect log on mirror-space tracking database. It can also occur due to the Microsoft SQL Server database (MDF) file corruption.
resolution If the problem is caused by incorrect log space tracking, load latest update to SQL Server and install it. caused, on the other hand, if MDF corruption is the problem, you have to go for SQL Server Recovery to solve the problem. SQL Recovery potential through advanced and effective third-party tools, known as MS SQL Repair software. The applications employing advanced scanning techniques to ensure complete and rapid recovery in all cases of corruption SQL Server database.
Stellar Phoenix SQL Recovery is a read-only use and easy to use tool that provides a perfect recreation of all types of database failure scenarios. The software is designed for Microsoft SQL Server 2008, 2005 and 2000. It calls on all MDF file, including tables, reports, macros, forms, constraints, stored procedures and triggers.
