Responding to the number of questions he typically receives on how LDoms (or, more properly Oracle VM Server for SPARC) work and how best to use them Stefan Hinker has launched a primer series that updates the earlier LDoms Admin Guide and Tony Shoumack's 2007 "Beginner's Guide to LDoms." Hinker explains how hypervisors running on x86 hardware differ in function from those embedded in SPARC firmware, which is chiefly to economize on the number of OS threads assigned to CPUs in order to concentrate on their principal function: maintaining isolation between guests. In this first installment, Hinker demonstrates the configuration of the control domain and the freeing up of considerable amounts of CPU and RAM for guest systems while also creating the necessary infrastructure - console, vts and vswitch - so that guests systems can actually interact with the outside world. Hinker aims to devote the next installment to the process for creating guests.
Oracle VM Server for SPARC 2.2: Improved Whole-core Allocation
Read More ...