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362 Appendix D
Using SNAplus2 in a High Availability Environment
SNAplus2 High Availability Features
Table D-1
NOTE The above example will be used throughout this appendix to explain
many different aspects of high availability systems.
In this example, nine LUs are used by APPC production applications
that run on the client systems. These LUs are configured to use an
SNAplus2 LS called HALS. This LS is configured to use the SNAplus2
LAN port HAPORT and can be run under the SNAplus2 node HANODE.
Normally, this configuration is run on the primary server hp_pri as
shown below. In addition, five LUs are used by APPC transaction
programs for development purposes. These LUs are configured to use an
SNAplus2 LS called DEVLS. This LS is configured to use the SNAplus2
LAN port DEVPORT, and can be run under the SNAplus2 node DEVNODE.
Normally, this configuration is run on the backup server hp_back as
shown below.
Component Primary Server Backup Server
System Name hp_pri hp_back
SNAplus2 Node HANODE DEVNODE
SNAplus2 Port HAPORT DEVPORT
SNAplus2 LS HALS DEVLS
SNAplus2 Local LU aliases HALU01...HALU09 DEVLU01...DEVLU05