![]() It seems like thin provisioning has been debated for eons in terms of virtualization and its use for provisioning storage. There is one area where this is hugely beneficial-thin provisioning. How does this help in real-world applications of storage in vSphere 7? Real-world Affinity Manager 2.0 benefits in vSphere 7Īs described, the creation of the region map of available resources allows a much more efficient path for writes to the VMFS layer. With the new region map, Affinity Manager 2.0 can quickly obtain and supply the available resource clusters to the resource manager. This mapping or ranking is referred to as a region map. High level architecture of the new Affinity Manager 2.0 in vSphere 7 (image courtesy of VMware)Ī mapping or "ranking" is created based on how many VMFS blocks are allocated for the current host as well as other hosts in the cluster. The process that maps a resource to a resource cluster is called "affinitizing." The Affinity Manager's job, among others, is to allocate resource clusters. To make this determination, there is a mechanism in vSphere called the Affinity Manager. Which resources will be allocated from the RC?.There are two decisions that have to be made when data is written to disk: These are on-disk groups of resources used by VMFS. VMFS makes use of a component called Resource Clusters (RC). ![]() What is Affinity Manager and how has it worked in previous releases?įirst, let's understand how data is written to disk in vSphere. What is VMware Affinity Manager 2.0 in vSphere 7? Let's take a closer look first at how the previous version of Affinity Manager worked and see what has changed. VMware's storage affinity manager has been updated and is called Affinity Manager 2.0 in vSphere 7 due to the new improvements. Storage performance is seeing a boost in vSphere 7 due to the new way VMFS Resource Clusters are managed with the new release.
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