SQL Server - Enabling FileStream after a DB has been created
From http://brianseekford.com/wordpress/?p=509
If you still get FILESTREAM feature is disabled.
check the 'running values' of your server and you'll probably still see it is disabled even if you enabled it.
You can fix it by enabling filestream here too (under Sql configuration manager).
Then you need to run
EXEC sp_configure filestream_access_level, 2
RECONFIGURE
To add FS support to existing database just create a new filegroup, then add the fs file;
alter database YourDatabase
add filegroup fsGroup contains filestream;
go
alter database YourDatabase
add file
( NAME = 'fsYourDatabase', FILENAME = 'c:\<your_file_path>'
)
to filegroup fsGroup;
go
More here: BOL Link
And definitely read everything Paul Randal has written about filestream: link