Summary

Virtual Partitions provide flexibility while retaining isolation in a dynamic Virtual Server Environment. While this chapter did not cover all of the vPar commands, the fundamental vPar terminology was discussed in detail. The example usage scenario discussed the process of creating two vPars in a single nPartition. Each vPar was assigned individual CPU, memory, and I/O resources. This configuration left two unbound CPUs that were migrated between the two vPars. The vPars were then configured to automatically boot from firmware up to the HP-UX operating systems. Finally, a script was presented that enabled a simple interface to be used with cron. This made possible the automated migration of CPUs between the two vPars based on the time of day.

After reading this chapter, it should be clear the problems that Toshi faced at the opening of the chapter can be solved by vPars. vPars make it possible to create dynamic computing environments while retaining operating system isolation. It should also be apparent that vPars play a significant role in HP's Virtual Server Environment.