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Appendix D 357
Using SNAplus2 in a High Availability Environment
What is High Availability?
• The LAN networking software on the server system
• The SNAplus2 Link software on the server system
• The operating system on the server system
• Disk drives attached to the server system
• The SNA network adapter card on the server system
• The SNA network between the HP 9000 and the IBM Front End
Processor
Other failures to consider include power failures, IBM mainframe
outages, client system failures, etc. This appendix focus es on what can
be done to reduce the impact of failures in and around the HP 9000
server system. Specifically, it discuss es the high availability features
built into SNAplus2 and how those features can be enhanced and
complemented with the use of HP’s MC/ServiceGuard product.