HP Appliance Architecture Overview and Performance Guide
A new white paper on SQL PDW from HP is available. The Architecture and Performance Guide for the HP Enterprise Data Warehouse powered by Microsoft SQL Server Parallel Data Warehouse. While much of it is information you can glean elsewhere, there is a very good section on I/O throughput and why its so import for a data warehouse environment. Specifically it covers topics such as the downside of using indexes in a data warehouse environment and the impact of disk fragmentation from traditional data loading practices. Please take a look at the white paper here: HP Enterprise Data Warehouse Appliance Architecture Overview and Performance Guide.