A blog by Jose Barreto, a member of the File Server team at Microsoft.
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Here are some notes on “SQL Server 2008 I/O Performance” I took while attending an advanced class on SQL Server taught by Greg Low (from http://sqlblog.com/blogs/greg_low/ and http://www.sqldownunder.com/).
Please note that, although these notes were taken during the class, I might have added some of my own (mis)interpretation :-). Always check your facts on Books Online (I try to provide links when applicable). As with anything else you get from a blog, never use any of this in production before you thoroughly validate it a test environment. Please keep in mind that some of those will be hard to follow without some pre-requisite knowledge and the right context. Reading the post from top to bottom will help.
SQL Server urban legends
Monitoring SQL I/O Performance
PerfMon + SQL Profiler
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