If multiple larger databases are backed up, the backup process may last for quite some time. Therefore, a timeout error is returned for some of the transactions. On high traffic servers, the pressure on the IO system, in this case, is simply too high. Write the read data for the backup file to the same disk drive
Read the database files in order to create backup file Read and write to the database files for all user transactions
For example, backing up a database to the same disk drive where data files are located could cause the timeout errors, especially on the disk drives with a low number of spindles. This induces certain pressure to the IO subsystem, and if not configured correctly, can further cause timeouts for some user transactions. Each database backup operation requires both disk reads and disk writes. However, taking a database backup does take some system resources. All backup operations in SQL Server are online operations and they are not supposed to cause locks on user objects. The misconception was based on situations where some of the user transactions got blocked during the database backup operations.
#SQL MANAGEMENT STUDIO 2008 R2 EXPRESS SCHEDULED BACKUP FULL#
There was a common misconception that some objects in the database get locked during backup operations, thus denying full access to the database. Furthermore, the solution must not impact the server performance, or cause any downtime.
In this case, it would be useful to create a solution that would back up all, or multiple selected SQL Server databases automatically, on a regular basis. However, if there are hundreds of databases to manage, backing up each database manually can prove to be a quite time-consuming task. In situations with few databases, maintaining the regular backup routine can be achieved easily, either with the help of a few simple scripts or by configuring a SQL Server agent job that will perform the backup automatically.
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