HP-UX 11i NSA HTTP Release Notes

HP-UX 11i NSA HTTP Software
Limitations
8
Limitations
NSA HTTP cache size regulation is not currently integrated with the file system buffer cache.
If the NSA HTTP product is installed, HP suggests that you verify and possibly decrease the
size of the file system buffer cache.
By default, the NSA HTTP maximum cache size percentage is 50 (50% of available system
memory). If the NSA HTTP maximum cache size percentage plus the minimum file system
buffer cache percentage (dbc_min_pct) is 100 percent or more, it is possible to have all of the
system memory used for the NSA HTTP and file system caches. This will cause system
performance to degrade.
You can change the NSA HTTP maximum cache size percentage by editing
/etc/rc.config.d/nsahttpconf or using the nsahttp command. To change the file system
buffer cache values, set the dbc_max_pct and dbc_min_pct system parameters with the
kmtune command. For more information, refer to kmtune(1M) man page.