HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

CPU, Memory, and I/O Resources (A.04.xx)
Memory: Specifying Address Range
Chapter 7
248
If you use the defaults of the dynamic tunables, you will not run into the 2 GB limit. However, if you have
adjusted the dynamic tunables, it is possible to run beyond the 2 GB boundary. For more information on
adjusting the kernel size with dynamic tunables, see the white paper Dynamically Tunable Kernel
Parameters at http://docs.hp.com.