Which advanced memory management technology allows vSphere to avoid memory waste among VMs?

Transparent Page Sharing is a key advanced memory management technology in VMware vSphere that effectively minimizes memory waste among virtual machines (VMs). It works by identifying and consolidating identical memory pages from multiple VMs. When multiple VMs have the same data in memory, Transparent Page Sharing enables vSphere to store just one copy of that data, while the VMs share access to it. This efficiently reduces the overall memory footprint and enhances the utilization of the physical RAM resources available, leading to better performance and cost savings in resource allocation.

This technology is particularly beneficial in scenarios where many VMs run similar operating systems or applications, as they tend to use similar memory content. By leveraging Transparent Page Sharing, VMware allows for more flexible and efficient use of memory, ensuring that the memory resources are optimally used without redundancy. This ultimately allows administrators to run more VMs on the same hardware, maximizing the efficiency of virtualized environments.