22-25 April 2026 
I/O! I/O! It’s off to disk we go...
2008TL; DR
I/O! I/O! It’s off to disk we go...
Session Details
You’ve issued your select query – the data isn’t in memory and so you’ve got to go to disk to get it. There are no dwarves to help you so the question is - How is this satisfied? What exactly is read-ahead? Does the edition you have installed affect how this is performed? Does partitioning alter anything? That’s just the half of it – there’s writes to talk about too. Understand the fundamentals of SQL Server I/O in this one hour practical session.
3 things you'll get out of this session
Speakers
James Rowland-Jones's previous sessions
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Demonstrating PDW integration with Hadoop & Polybase
Polybase is one of the most exciting, innovative features in PDW; enabling transparent data integration with Hadoop's distributed file system (HDFS) and soon Windows Azure Storage Blobs (WASB). See it in action.
The Art of War-Fast Track Data Warehouse & Fragmentation
When loading a Fast Track Data Warehouse it is important to ensure that your data is optimally laid out for Sequential I/O. Fragmentation is therefore the enemy. Know your enemy. Learn what it is, how it occurs and prevent it from happening to you!