Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/05000 for Orac - Page 217

Glossary Availability Client LAN Cluster Command Line Interface (CLI) Downtime Ethernet A measure of how well a computer system can deliver services to its clients continuously. Availability is typically expressed as a percentage, with 100 percent being the best possible rating. A local area network dedicated to servicing requests between network client machines and between the cluster nodes and the client machines. This is different than a cluster interconnect, which is dedicated to servicing information requests to and from only cluster nodes. An integration of software and hardware technologies that enables a set of loosely coupled servers and storage to present a single system image to clients and to operate as a single system. Clustering is a way to improve availability and scalability. The interface to the command set used to configure an HSG80 Array Controller and the disk drives to which it is physically and logically connected. The period of time that a computer system is unable to service clients' requests. A standard network protocol that operates mostly on a physical level, using network interface cards and cabling to transmit data between computers. Transfer rates are normally 10 or 100 megabits per second.