What is MSDB database in SQL Server?

Question

The msdb database is a system database that is used by several SQL Server components such as the SQL Server Agent service. In addition to SQL Server Agent configuration and task information, replication, log shipping, and maintenance plan data are stored in the msdb database.

What does Msdb stand for in SQL Server?

SQL Server system databases – the msdb database.

What happens when Msdb DB is down?

If Msdb is down, then your sql server agent wont start, hence the jobs will not even run in the first place.

Where can I find Msdb?

If you open SQL Server Management Studio, you can see the msdb database under the System Databases. The database files will be in the default data file location with the file names as MSDBData.

How do I clean up MSDB database?

You could use the database maintenance plan – Cleanup History task and configure it to clean up backup tables automatically. Select the Cleanup History task in the maintenance plan and click Next. On the next page, select the value for the “Remove historical data older than” parameter.

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