HP -UX SNAplus2 Manual do Utilizador Página 365

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Appendix D 365
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
3xxx
Communications
Controller
IBM
Host
LAN
S800
Server
S800
Server
Standby client/server
network links
Active client/server
network links
Backup serverPrimary server
Dual SNA
network DLCs
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