HP-UX SNAplus2 Installation Guide (February 2007)

Tunable System Parameters
System Parameter Defaults
Appendix A 77
System Parameter Defaults
The default values of the tunable system parameters are usually
adequate; however, changing the value of one or more of the parameters
may be necessary, particularly if many users are using the SNAplus2
products at the same time. Changing the parameters’ values should be
done only after SNAplus2 has been successfully installed and started
using the defaults. The table on the following page shows either the
SNAplus2 default value or the SNAplus2 required value of each tunable
system parameter that affects SNAplus2.
If you need to change any of the parameters’ values, you can use the
/usr/sbin/smh program. This procedure is discussed in the System
Administration Tasks manual for your HP 9000 or Integrity server.
Generally, you should only increase a parameter’s value in order to avoid
affecting other applications.
Table A-1 Tunable System Parameter Default Values
Parameter Type of Parameter
SNAplus2 Default or
Required Value
netisr_priority Networking 100
semmni Semaphore related Increase by (2 x
number of concurrent
copies of the 3270
emulation program) +
(number of sessions
configured for
HLLAPI).
semmns Semaphore related Increase by (2 x
number of concurrent
copies of the 3270
emulation program) +
(2 x number of sessions
configured by
HLLAPI).