HP ProLiant 4500 Compaq ProLiant Cluster HA/F100 and HA/F200 Administrator Gui - Page 172

Glossary-2 Compaq ProLiant Clusters HA/F100 and HA/F200 Administrator Guide Cluster group Compaq StorageWorks RA4000 Controller Compaq StorageWorks Fibre Channel Host Bus Adapter Compaq StorageWorks RAID Array 4000 Conflict Dynamic IP address assignment Ethernet Failback Failover Fault tolerance A collection of interdependent resources that logically represents a clustered client/server function. This is a user-definable entity used by Microsoft Cluster Server (MSCS) software. A hardware device that facilitates communications between a host and one or more devices organized on an RA4000. A device that provides an interface between a host system (server) and storage system or other devices connected on a fibre channel arbitrated loop or fabric. A storage device including disk drives and one or more resident array controllers. A misunderstood command sent by software that causes processing to halt. An automatically assigned address that comes from an unused IP address pool. When the client/server session ends, the IP address is returned to the pool. The server can use fewer IP addresses to communicate with clients. Clients do not need to provide a hard-coded address to the server. A standard network protocol that primarily operates on a physical level, using network interface cards and cabling to transmit data between computers. Transfer rates are normally 1,000 or 10,000 megabits per second. The process of moving the operation of a previously failed cluster group from the secondary cluster node back to the primary node. The process of moving the operation of a cluster group from the primary node to the secondary node in the same cluster. A design concept that allows continued operation of a computer entity when a fault (or failure) is encountered. Tolerance is achieved primarily by designing redundant elements into the entity.