The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 7: FILESTREAM Database AdministrationConnect to your instance using DAC and run the query in Listing 7-10, which will retrievethe list of garbage files in the current database. If you have followed the example, thequery will return details of two garbage files.SELECTphysical_name AS FILESTREAMFolder,rowset_guid AS TableFolder,column_guid AS ColumnFolder,FILESTREAM_value_name AS FILESTREAMFileFROM sys.filestream_tombstone_2073058421 ftINNER JOIN sys.database_files dfON df.file_id = ft.file_id/*FILESTREAMFolder TableFolder ColumnFolder FILESTREAMFile----------------------- ------------- ------------- ---------------C:\Demos\FS\NorthPoleFS 448BFCA8-6... 91DFDC80-E... 00000018-000...C:\Demos\FS\NorthPoleFS 448BFCA8-6... 2A7202BA-4... 00000018-000...*/Listing 7-10:Retrieving the list of garbage files.FILESTREAM Data Corruption and DBCC ChecksOne of the most undesirable situations for a database administrator is databasecorruption. In most cases, regular database checks and maintenance activities will help adatabase administrator to ensure that the databases are healthy and free from corruption.A common cause of a corrupted FILESTREAM database is an "over-enthusiastic" administrativeuser who wants to play with the FILESTREAM data files directly. Remember thatall access to the FILESTREAM data should be made through SQL Server. Direct access tothe FILESTREAM data using the file system tools may corrupt your database.284