Microsoft SQL Server Parallel Data Warehouse (SQL Server PDW) is a pre-built data warehouse appliance that includes Microsoft SQL Server database software, third-party server hardware and networking components.
Parallel Data Warehouse has a massively parallel processing (MPP) architecture. As such, Microsoft has billed Parallel Data Warehouse as being well-tuned for big data processing.
Like other server appliances, one of the main features of Parallel Data Warehouse is that it is easier to set up when compared to buying commodity hardware and software and configuring them in house. There are currently two versions of Parallel Data Warehouse: one uses Hewlett-Packard servers and the other uses Dell hardware.
See also: data center in a box