data-konzept

'Every time you backup or restore a database SQL Server keeps history information about the backup or restore operation. The backup and restore information is captured and stored in the msdb database. This backup and restore information if left unchecked can take up more and more space over time. To minimize msdb storage space you need to consider removing the backup and restore history records when they are no longer useful.'...

http://www.databasejournal.com/tips/managing-sql-server-backup-and-restore-history-information.html