Total time, in milliseconds, that users waited for I/O to be completed on the file. SELECT A.io_stall, db_name(A.database_id),physical_name, * FROM sys.dm_io_virtual_file_stats(null, null ) A join sys.master_files B on A.database_id=B.database_id and A.file_id=B.file_id order by A.io_stall desc
