HP UX SNAplus2 clusters, packages, Figure D-6, Appendix D, Using SNAplus2 with MC/ServiceGuard, SNAplus2 environment with ServiceGuard

Using SNAplus2 in a High Availability Environment

Using SNAplus2 with MC/ServiceGuard

Using SNAplus2 with MC/ServiceGuard

MC/ServiceGuard (product number B3935AA) is a specialized facility for protecting mission critical applications from hardware and software failures by allowing you to organize groups of servers into clusters and applications (like SNAplus2 ) into packages. (See Managing MC/ServiceGuard, HP Part No. B3936-90003). Using SNAplus2 in a ServiceGuard cluster protects against many of the unexpected failures that can interrupt SNA network access to end users. The strategy employed by ServiceGuard is to prevent a single failure from disrupting service by providing software and hardware redundancy. The typical SNAplus2 environment might look like the following example when used with ServiceGuard.

Figure D-6	SNAplus2 environment with ServiceGuard
	Client		Client	Client			Client
						LAN
							Standby client/server
	Active client/server						network links
	network links
	Primary server	S800			S800			Backup server
		Server			Server
	Dual SNA
	network DLCs

3xxx

Communications

Controller

IBM

Host

Appendix D 365