Increasing your cluster density by using Memory Tiering within the Amazon Elastic VMware Service (Amazon EVS) can help drive down the costs of your AWS infrastructure. Amazon EVS now supports VMware Cloud Foundation (VCF) 9.0 and 9.1 . In VMware Cloud Foundation (VCF) 9.0 Memory Tiering was introduced, which is a new feature within ESX that uses high-speed NVMe devices as a second memory tier alongside DRAM. You can turn on this capability on both currently available Amazon EVS instance types, i4i.metal and i7i.metal-24xl. We will dive deep into what Memory Tiering is, how it changes the way you size a cluster, and how to activate and deactivate the feature on a VCF 9.1 deployment running in Amazon EVS.
Introduction to Memory Tiering in VCF 9.1
Memory Tiering is host level feature integrated into the ESX kernel that allows you to present two tiers of memory to the hypervisor: Tier 0 consisting of the physical hosts DRAM, and Tier 1 consisting of the local…
