Some requirements of the design I am working on is to be as “green” as possible and to offer the highest level of redundancy for business continuity. Enter VMware Fault Tolerance (FT) and Distributed Power Management (DPM)! When mixing multiple features, the requirements of one feature can have impact on- or even worse becomes a [...]

After discussing with Duncan the performance problem presented by @heiner_hardt , we discussed the exact moment the VMkernel decides which reclamation technique it will use and specific behaviors of the reclamation techniques. This article supplements Duncan’s article on Yellow-bricks.com. Now let’s begin with when the kernel decides to reclaim memory and see how the kernel [...]

Most of my resource management articles focus more on the behavior of memory management than on CPU management. Mainly because the Memory scheduler within ESX is such an interesting complex system which comprises of memory allocation, swapping and reclamation with algorithms such as Idle Memory Tax and mechanisms like ballooning and swapping. But lately it [...]