What is the benefit of using filegroups?

What is the use of filegroups in SQL Server?

The filegroup contains the primary data file and any secondary files that aren't put into other filegroups. User-defined filegroups can be created to group data files together for administrative, data allocation, and placement purposes.

Which of the following are advantages of implementing multiple filegroups in a database design?

You can get very detailed, storing parts of the database that are less frequently acccessed onto slower "nearline" types of media, and keeping the higher activity pieces (very heavily used indexes, tables, etc) onto the higher-cost faster storage.

What are files and filegroups in SQL Server?

Filegroups are the physical files on your disc volumes that hold SQL Server's data and can be used for backup and administrative management purposes. The first thing to know are what types of files SQL Server uses: Primary Data Files. Secondary Data Files. Log Files.

What is a read only filegroup SQL Server?

When a Filegroup is marked as Read-only, SQL Server will not bother with Page or Row locks on the tables or indexes contained in them. This reduces SQL Server overhead and improves performance.