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Can you delete SQL transaction logs?
To delete data or log files from a database Expand Databases, right-click the database from which to delete the file, and then click Properties. Select the Files page. In the Database files grid, select the file to delete and then click Remove. Click OK.
Does transaction log backup affect performance?
If the transaction log file is full in the SQL Server database, it degrades the performance of the SQL Server. It also slows down the speed of the transactional log backup process. In addition, the over-sized transaction logs decrease the disk space also because old transaction logs are not removed yet.
Can we shrink MSDB log file?
Change your database into simple recovery and shrink the file.
What causes Msdb to grow?
MSDB stores backup and restore history. Imagine a server with 2000 databases that takes a log backup of all of them every 15 minutes. That’s 192,000 new rows into the backupset and backupmediaset tables EVERY DAY! Keeping a few weeks or months of history can cause the size of MSDB to get very large.
What is Sp_syspolicy_purge_history?
The sp_syspolicy_purge_history is used by Policy Based Management in SQL server to clear out the policy evaluation history. Extract from SQLServerPedia. SQL Server 2008 introduced a new feature called Policy Based Management. A Policy can be something like xp_cmdshell should not be enabled on an instance.
What is mirror backup?
A mirror backup is an exact copy of the selected folders and files from the source being backed up. Mirror backups are unique in that when you delete a file from the source, that file will eventually be deleted on the mirror backup.
What happens if I run SP _ delete _ backuphistory?
Backup history goes back 5 years in that table but only needs last 30 days of backup history. If we run sp_delete_backuphistory keeping only 30 days of history, is there any risk for the transaction log running out of space? MSDB is using simple recovery model. MSDB log file is currently 388544kb on C drive. C drive has 45gb free.
How to delete MSDB backup and restore history?
The first procedure that can be used is sp_delete_backuphistory. This system stored procedure takes a single parameter – a cutoff date. Any data older than the supplied date is purged from the msdb tables listed earlier in this tip. In the following example, I’ll purge all data older than 4/2/2009.
How often does MSDB run a full backup?
Full backup runs every night, log backup runs every 15 minutes. The MSDB database recovery model is set to simple (default). To be able to see the history of these jobs, we had to setup a job cleaning the history log. But, when this job runs, the log file of MSDB grows large (20 – 40 GB).
How big is the MSDB transaction log file?
MSDB is using simple recovery model. MSDB log file is currently 388544kb on C drive. C drive has 45gb free. You may want to run the deletes in smaller chunks to avoid excessive log file growth for this one-time cleanup, particularly because your msdb database is on the C:\\ drive.