SQL Server – File stats using Fn_virtualfilestats

Fn_virtualfilestats() is in-build function in the SQL Server and really useful for understanding the amount of I/O within individual files on your SQL Server system. It returns I/O statistics for database files, including log files. Syntax fn_virtualfilestats ( { database_id | NULL } , { file_id | NULL } ) Example 1 File statistical information for a database select * from :: fn_virtualfilestats (1,1)   Example 2 File statistical information for all databases and files select * from :: fn_virtualfilestats

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