ExpressCluster X 3.1 for Linux Getting Started Guide - Nec

Appendix A GlossaryNodeHeartbeatPublic LANFailoverFailbackFailover groupMoving failover groupFailover policyPrivate LANPrimary (server)Floating IP addressMaster serverMirror disk connectMirror disk type clusterA server that is part of a cluster in a cluster system. Innetworking terminology, it refers to devices, includingcomputers and routers, that can transmit, receive, or processsignals.Signals that servers in a cluster send to each other to detect afailure in a cluster.(Related terms: Interconnect, Network partition)A communication channel between clients and servers.(Related terms: Interconnect, Private LAN)The process of a standby server taking over the group ofresources that the active server previously was handling dueto error detection.A process of returning an application back to an activeserver after an application fails over to another server.A group of cluster resources and attributes required toexecute an application.Moving an application from an active server to a standbyserver by a user.A priority list of servers that a group can fail over to.LAN in which only servers configured in a clustered systemare connected.(Related terms: Interconnect, Public LAN)A server that is the main server for a failover group.(Related term: Secondary server)Clients can transparently switch one server from anotherwhen a failover occurs.Any unassigned IP address that has the same networkaddress that a cluster server belongs to can be used as afloating address.The server displayed at the top of Master Server in ServerCommon Properties of the BuilderLAN used for data mirroring in mirror disks and hybriddisks. Mirror connect can be used with primaryinterconnect.A cluster system that does not use a shared disk. Local disksof the servers are mirrored.160ExpressCluster X 3.1 for Linux Getting Started Guide