TABLE A: Columns in the File Statistics Table
Column Name	Data Type	Description
DbId	smallint	Database ID
FileId	smallint	File ID
TimeStamp	int	Timestamp at which the data was taken
AsynchReads	bigint	Number of asynchronous reads issued on the file
AsynchWrites	bigint	Number of asynchronous writes to the file
AsynchBytesRead	bigint	Number of asynchronous bytes read from the file
AsynchBytesWritten	bigint	Number of asynchronous bytes written to the file
SynchReads	bigint	Number of synchronous reads from the file
SynchWrites	bigint	Number of synchronous writes to the file
SynchBytesRead	bigint	Number of synchronous bytes read from the file
SynchBytesWritten	bigint	Number of synchronous bytes written to the file
IoStallMS	bigint	Total amount of time (in milliseconds) users waited for the I/O to complete on the file