TABLE 1 Data That the fn_virtualfilestats() Function Reports
Column Name Data Type Description
DbId smallint Database ID
FileId smallint File ID
TimeStamp int Time at which the data was taken
NumberReads bigint Number of reads issued on the file
NumberWrites bigint Number of writes made on the file
BytesRead bigint Number of bytes read issued on the file
BytesWritten bigint Number of bytes written made on the file
IoStallMS bigint Total amount of time, in milliseconds, that users waited for the I/Os to complete on the file