ExpressCluster X 3.1 for Linux Getting Started Guide - Nec

Notes when creating ExpressCluster configuration dataWebManager reload intervalDo not set the “Reload Interval” in the WebManager tab for less than 30 seconds.LAN heartbeat settingsAs a minimum, you need to set either the LAN heartbeat resource or kernel mode LANheartbeat resource.You need to set at least one LAN heartbeat resource. It is recommended to set two or moreLAN heartbeat resources.It is recommended to set both LAN heartbeat resource and kernel mode LAN heartbeatresource together.Kernel mode LAN heartbeat resource settingsAs a minimum, you need to set either the LAN heartbeat resource or kernel mode LANheartbeat resource.It is recommended to use kernel mode LAN heartbeat resource for distribution kernel ofwhich kernel mode LAN heartbeat can be used.COM heartbeat resource settingsIt is recommended to use a COM heartbeat resource if your environments allows. This isbecause using COM heartbeat resource prevents activating both systems when the network isdisconnected.BMC heartbeat settingsThe hardware and firmware of the BMC must support BMC heartbeat. For available BMCs,see Chapter 3, "Servers supporting BMC-related functions" in the Getting Started Guide.IP address for Integrated WebManager settingsPublic LAN IP address setting, ExpressCluster X2.1 or before, is available in the Builder atIP address for Integrated WebManger which is on the WebManager tab of ClusterProperties.Double-byte character set that can be used in script commentsScripts edited in Linux environment are dealt as EUC code, and scripts edited in Windowsenvironment are dealt as Shift-JIS code. In case that other character codes are used, charactercorruption may occur depending on environment.Failover exclusive attribute of virtual machine groupWhen setting virtual machine group, do not set Normal or Absolute to Failover exclusiveattribute.Section II Installing ExpressCluster133