What else you need to know about single-pass backup

Single-pass backup is performed at a disk level. This results in the following peculiarities for this backup type:

• Databases located on network shares cannot be backed up.
• Filegroups are backed up and recovered as a whole database. An individual file cannot be recovered so that the database is operational.
• Databases cannot be recovered to any point in time, but only to a point in time when the data snapshot was taken. If you back up transaction logs by using the SQL Server backup and restore component, you can further apply these logs to reach the desired recovery point.