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Using sys.dm_os_ring_buffers to Troubleshoot Connectivity Issues

February 19, 2014 by John Sansom 16 Comments

Connectivity

I encountered an interesting question over on the MSDN forums concerning a poster that was reporting experiencing an issue whereby the “sa” account kept being locked out. In scenarios such as this the SQL Server Error Log is your friend, as it can be configured to record failed login attempts for an instance. Of course […]

Filed Under: Administration, SQLServerCentral Syndication, SQLServerPedia Syndication Tagged With: connectivity, DMV, DMV Queries

What Are You Waiting For?

May 17, 2011 by John Sansom 3 Comments

I know what I am waiting for. I know exactly what every SQL Server instance in my care is waiting for. Why? Because it’s my job to make SQL Server go faster. Identifying what your SQL Server Instance is waiting on will show you exactly where to look in order to make your server go […]

Filed Under: Administration, Performance Tuning, SQLServerCentral Syndication, SQLServerPedia Syndication Tagged With: DMV, DMV Queries, Wait Types

Finding Bad Indexes Using SQL Server DMVs

February 24, 2009 by John Sansom 1 Comment

Today I want to show you how to go about finding bad indexes. SQL Server indexes are often promoted as the answer to all of our performance optimisation needs. It may then surprise you to hear that indexes can also be bad for performance. “What are you yapping on about John” I hear you shout. […]

Filed Under: Index Optimisation Tagged With: Bad Indexes, DMV Queries

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