364
Appendix D
Using SNAplus2 in a High Availability Environment
SNAplus2 High Availability Features
At this point, the backup server has completely taken over the primary
server and is providing the
HALU01
...
HALU09
LUs for the production
applications. The less important development LUs are no longer
available. The key point is that the production applications do not need
to change when this switch takes place. The location of where the
software components are started changes, not the underlying SNAplus2
configuration. SNAplus2 will automatically route data to and from the
production applications through the backup server.
Figure D-5
SNAplus2 on Primary and Backup Servers
This feature makes it easy to provide backup capability when the
primary server needs to be taken offline. Later sections describe how the
MC/ ServiceGuard product can automate the switch from a primary to a
backup server even when unexpected failures occur.
Client
Client
Client
Client
3xxx
Communications
Controller
IBM
Host
LAN
Primary HP-UX Server hp_pri
Temporarily Out of Service
Backup HP-UX Server hp_back
Development Configuration
Node................DEVNODE
LS....................DEVLS
Port..................DEVPORT
LUs..................DEVUO1...DEVLU09
Token Ring
Содержание HP-UX SNAplus2
Страница 4: ...4 ...
Страница 14: ...14 Contents ...
Страница 22: ...22 ...
Страница 23: ...23 1 SNA Terms and Concepts ...
Страница 65: ...65 2 Introduction to SNAplus2 ...
Страница 107: ...107 3 Administering SNAplus2 ...
Страница 132: ...132 Chapter3 Administering SNAplus2 Using the Command Line Administration Program ...
Страница 133: ...133 4 Basic Configuration Tasks ...
Страница 142: ...142 Chapter4 Basic Configuration Tasks Configuring Logging ...
Страница 143: ...143 5 Defining Connectivity Components ...
Страница 167: ...167 6 Configuring Dependent LUs ...
Страница 174: ...174 Chapter6 Configuring Dependent LUs Defining LU Pools ...
Страница 175: ...175 7 Configuring APPC Communication ...
Страница 208: ...208 Chapter7 Configuring APPC Communication Configuring APPC Security ...
Страница 209: ...209 8 Configuring User Applications ...
Страница 222: ...222 Chapter8 Configuring User Applications Configuring RJE Workstations ...
Страница 223: ...223 9 Configuring Passthrough Services ...
Страница 235: ...235 10 Managing SNAplus2 from NetView ...
Страница 248: ...248 Chapter10 Managing SNAplus2 from NetView Using UCF ...
Страница 249: ...249 11 Managing SNAplus2 Clients ...
Страница 300: ...300 Chapter11 Managing SNAplus2 Clients Managing HP UX Clients ...
Страница 301: ...301 A Configuration Planning Worksheets ...
Страница 337: ...337 B APPN Network Management Using the Simple Network Management Protocol ...
Страница 343: ...343 C Configuring an Invokable TP Using snaptpinstall ...
Страница 353: ...353 D Using SNAplus2 in a High Availability Environment ...