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Appendix D
Using SNAplus2 in a High Availability Environment
Using SNAplus2 with MC/ServiceGuard
Assuming the applications attempt to activate a new LU-LU session
when they lose the LU-LU session they were using, you simply need to
wait for the migration to occur. The applications require no restart ing
because they run on client systems. The set of commands needed to start
HALS
on the backup server are listed. Once the backup server reactivates
HALS
, the applications will again be able to obtain LU-LU sessions.
SNAplus2 Package
To integrate SNAplus2 into your ServiceGuard cluster, an SNAplus2
package must be defined. Defining an SNAplus2 package tells
ServiceGuard that the SNAplus2 software on the HP 9000 server must
be highly available, and access to the SNA network is mission critical.
Defining an SNAplus2 package will allow ServiceGuard to do the
following:
• Automatically start the SNAplus2 software when the SNAplus2
package starts
• Automatically start a process to monitor the state of the SNAplus2
software on the server
• Automatically migrate the SNAplus2 package to a backup server if
the package ever fails to provide SNA network connectivity
ServiceGuard will monitor the health of the SNAplus2 package, and
migrate the package to another server if it should ever fail to provide
SNA network connectivity.
Several configuration steps are involved in defining packages. Follow the
ServiceGuard product documentation for planning and beginning the
package definition. ServiceGuard allows you to create a package using
SAM or using HP-UX commands and editors. The following suggestions
will help you create your SNAplus2 ServiceGuard package.
Summary of Contents for HP-UX SNAplus2
Page 4: ...4 ...
Page 14: ...14 Contents ...
Page 22: ...22 ...
Page 23: ...23 1 SNA Terms and Concepts ...
Page 65: ...65 2 Introduction to SNAplus2 ...
Page 107: ...107 3 Administering SNAplus2 ...
Page 132: ...132 Chapter3 Administering SNAplus2 Using the Command Line Administration Program ...
Page 133: ...133 4 Basic Configuration Tasks ...
Page 142: ...142 Chapter4 Basic Configuration Tasks Configuring Logging ...
Page 143: ...143 5 Defining Connectivity Components ...
Page 167: ...167 6 Configuring Dependent LUs ...
Page 174: ...174 Chapter6 Configuring Dependent LUs Defining LU Pools ...
Page 175: ...175 7 Configuring APPC Communication ...
Page 208: ...208 Chapter7 Configuring APPC Communication Configuring APPC Security ...
Page 209: ...209 8 Configuring User Applications ...
Page 222: ...222 Chapter8 Configuring User Applications Configuring RJE Workstations ...
Page 223: ...223 9 Configuring Passthrough Services ...
Page 235: ...235 10 Managing SNAplus2 from NetView ...
Page 248: ...248 Chapter10 Managing SNAplus2 from NetView Using UCF ...
Page 249: ...249 11 Managing SNAplus2 Clients ...
Page 300: ...300 Chapter11 Managing SNAplus2 Clients Managing HP UX Clients ...
Page 301: ...301 A Configuration Planning Worksheets ...
Page 337: ...337 B APPN Network Management Using the Simple Network Management Protocol ...
Page 343: ...343 C Configuring an Invokable TP Using snaptpinstall ...
Page 353: ...353 D Using SNAplus2 in a High Availability Environment ...