The host is a Linux server that runs the Netezza software and utilities. The host controls and coordinates the activity of the Netezza Appliance and performs query optimization. The host also controls table and database operations, gathers and returns query results, and monitors the Netezza system. Netezza systems have two hosts in a highly available (HA) configuration. The host is connected to the Netezza Database, which consists of a series of parallel processors called Snippet Processing Units (SPUs) often referred to as S-Blades. SPU and S-Blade are synonymous and the term is used interchangeably. This book will most often refer to them as SPUs.
CH1 The host
Share this highlighthttp://www.safaribooksonline.com/a/the-brilliance-of/3808/