I wanted to confirm that we are interpreting the “Physical R/W” graph correctly. It is showing the number of read and write opperations per second correct? It is not showing read/Write waits. If I am completely wrong, which is always possible, please educate me.
SQLcheck is reporting back the values that SQL Server reports for @@Total_Read (msdn.microsoft.com/.../ms187917.aspx) and @Total_Write (msdn.microsoft.com/.../ms188758.aspx). From the MS articles, you can see that the value reported is a value since SQL Server was started. Given that, we’re simply reporting the delta values (the change in value since the last refresh).