Granting permissions to relevant account is a required criteria within the SQL Server databases management, for this even Reporting Services is not exceptional. As per the configuration by default the users connect to the report server by using their own Windows domain credentials and integrated security...
You may be well versed with scheduling the database backups using SQL Serve Agent --> Jobs with Enterprise Manager or Management Studio. So how about creating a automation job for SQL Server 2005 analysis services database backup every night. Simple, within SQL Server 2005 version you can schedule...