Scalable shared databases are supported by Microsoft SQL Server 2005 Enterprise Edition. This article is a preview of the "Scalable shared database" topic that will be published in a future update of SQL Server Books Online.

Scalable shared databases let you attach a read-only reporting database to multiple server instances over a storage area network (SAN). A reporting database is a read-only database that is built from one or more production databases that are used exclusively for reporting purposes. To be made into a scalable shared database, a reporting database must reside on one or more dedicated read-only volumes. The primary purpose of these read-only volumes is to host the reporting database or a coordinated set of reporting databases. These volumes are known as reporting volumes.

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