Part 1: SQL Server I/O system performance and troubleshooting 

These two sessions are dedicated to sharing how to troubleshoot I/O issues when you face slow performance due to slow I/O subsystem in SQL Server.
In part 1, I will share how I/O system is built in Windows. This works as a fundamental knowledge required for troubleshooting I/O performance in SQL Server.
In part 2, I will share how to troubleshoot I/O issues in SQL Server with real examples.
Chapters:
0:00 - Introduction
1:20 - I/O system components in Windows (high level)
2:36 - I/O system components in Windows (more detailed)
- Windows I/O related API functions
- Windows I/O related NtDLL functions
- I/O manager and IRP
- Drivers
7:53 - I/O components in SQL Server
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