1. …the secret sauce! Diagrams and video from Microsoft white papers and slide decks

2.  LobsterPot Solutions  MCM  MVP  MCT  Adelaide SQL Server User Group leader  Formerly on the PASS Board of Directors  Only certified PDW Trainer in Asian region (outside Microsoft, of course)

3.  What is PDW?  How is it different to ordinary SQL Server?  How does it achieve so much better performance?

4.  SQL Server uses Symmetric Multi-Processing (SMP)  PDW uses Massively Parallel Processing (MPP)  …but at its core, PDW is just lots of SQL Servers, talking in an interesting way.  …and previously known as “Project Madison”

5. Dell JBOD 1 Compute Node 2 Compute Node 3 JBOD 2 Compute Node 1  An appliance (rack) provided by HP or Dell  Devices connected by InfiniBand (56 Gbps)  Control Node and Compute Nodes  Disks provided using JBOD arrays  Systems expandable from ¼ rack to multi HP Infiniband Infiniband Ethernet Ethernet Control Node Failover Node JBOD 1 Compute Node 1 Compute Node 2 JBOD 2 Compute Node 3 Compute Node 4 JBOD 3 Compute Node 5 Compute Node 6 JBOD 4 Compute Node 7 Compute Node 8 CustomerUse Infiniband Infiniband Ethernet Ethernet Control Node Failover Node JBOD 5 Compute Node 8 Compute Node 9 JBOD 6 Compute Node 7 CustomerUse JBOD 3 Compute Node 5 Compute Node 6 JBOD 4 Compute Node 4

8.  Control Node has a shell database  Compute Nodes have  Distributed Data - hashed on a column across eight distributions per compute node  Replicated Data - copied across each compute node  Clustered Columnstore available

9.  T-SQL sent to Control Node  Control Node works out an MPP Plan  MPP Plan made up of DSQL  SQL commands  Movement operations  Temporary table operations  Return operations

10.  What if the data you need is on the wrong node?  Shared Nothing v Redistribution

11.  Let’s get out the whiteboard!!!  Partition Move  (Control-Node) Move  Broadcast Move  Shuffle Move  Trim Move  Replicated Broadcast

15.  PDW provides the scale-out that your warehouse needs  If you’re looking at 32 cores of Enterprise Edition, get PDW instead  The power comes from distributing the load across all nodes as much as possible  Key reference:  White paper “Query Optimization in Microsoft SQL Server PDW” from Microsoft Research (DeWitt and others)