Though it is more to do with SQL Storage kind of question, I have just dragged into Performance tuning section for the sake of large installation you talk with clustering. For the sake of discussion it seems better to plan ahead for the failing instances since, for example, two of the four servers could...
As you may aware the PERFMON (SYSMON) utility provides much information to analyze on the systems resource usage, I support and suggest to make use of this tool as much as you can with a default templates within our environment. You may be aware the data is saved as a file with .BLG extension which can...
The system DMV sys.dm_os_schedulers is an useful DMV to find such as running tasks & active workers threads etc. This is required to monitor the system state is heavily loaded or not, in particular this view will help you identify if there is any CPU bottleneck in the SQL Server machine. SELECT scheduler_id...
TEMPDB - though the name sounds like temporary database, it most important for any user database! Coming to performance tuning exercise or analysis you would go through Task Manager initially to see how system's memory & processor are coping up. Though they give initial picture of usage it is...
Until recently I have just used Dedicated Administrator Console (DAC) to connect just to test whether the connection will be successful. You may be aware that only administrator will be able to access a running instance of SQL Server Database Engine to troubleshoot problems on the server—even when the...