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380 Appendix D
Using SNAplus2 in a High Availability Environment
Using SNAplus2 with MC/ServiceGuard
Interface card. . . . . . . . . . [card0.......]
The backup server should also be configured so that its X.25 card uses
the name card0. That way, when ServiceGuard attempts to start the
same configuration on the backup server, the card can be accessed by the
expected name.
Figure D-12 Client/Server Configuration Using X.25 DLC
SDLC
Allowing multiple servers to use the same SDLC configuration is more
difficult than with the other link types because SDLC DLCs are often
dedicated lines from one HP 9000 server to a remote SNA system.
Client Client Client Client
3xxx
Communications
Controller
IBM
Host
LAN
Primary HP-UX Server hp_pri
PDN Adapter
Backup HP-UX Server hp_back
PDN Adapter
Card 0Card 0
X.25