![]() So it is very important to configure and schedule system databases backup also like other user databases in SQL Server. Now to get system databases back to its original position means all SQL logins and jobs, we need to restore last or previous full backup files of master, model and msdb databases. For example, you may have user-defined objects in the master database, scheduled jobs in msdb, or changes to the default database settings in the model database. Any user modifications to these databases are lost. When master, model, and msdb system databases are rebuilt, the databases are dropped and re-created in their original location. ![]() Limitation and Restrictions in Rebuilding System Databases So system databases must be rebuilt to fix corruption problems in the master, model, msdb, or resource system databases. means that corruption of master database. In this case when you will try to start SQL Server service, it will not start and if you will check the SQL Server error logs to check error message, you could see the following entries “ Restore the database from a full backup, or repair the database”, “ Cannot recover the master database”. Sometimes an unexpected shutdown of SQL Server database server has resulted in crashing of the SQL Server or system databases. This blog describes process of rebuilding system databases in clustered environment.
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