The MS SQL Server Layer

The tests associated with this layer, indicate the following:

Error frequency
SQL engine performance
SQL Uptime
Buffer pool usage (specific to MS SQL 2005 and above)
Active transactions and their effect on tempdb (specific to MS SQL 2005 and above)
Blocked processes and how to deal with them
The number and type of system processes currently running

sqlserverlayertests-newest

Figure 1 : The tests associated with the MS SQL Server layer