What Is Vpc Tenancy
So you could create a vpc enable dedicated tenancy and that vpc can t use shared compute hardware.
What is vpc tenancy. Custom mode vpc networks start with no subnets giving you full control over subnet creation. Virtual private cloud vpc is defined as a multi tenant but virtually isolated collection of compute network and storage resources. Dedicated private cloud dpc is defined as physically isolated single tenant collection of compute network and sometimes storage resources exclusively provisioned to just one organization or application.
Auto mode vpc networks create subnets in each region automatically. You cannot specify a tenancy of default during instance launch. However tenancy can be changed from dedicated instance to dedicated host or vice versa.
A vpc is a public cloud offering that lets an enterprise establish its own private cloud like computing environment on shared public cloud infrastructure. For more information see dedicated instances in the amazon elastic compute cloud user guide. Dedicated tenancy ensures all ec2 instances that are launched in a vpc run on hardware that s dedicated to a single customer.
Read this blog to know about the various architectural design patterns for multi tenancy on aws and their pros and cons. Vpc networks do not have any ip address ranges associated with them. Ip ranges are defined for the subnets.
An instance launched into the vpc is a dedicated instance by default unless you explicitly specify a tenancy of host during instance launch. When we re looking at shared tenancy the definition is shared hardware below the hood a bare metal server and a rack a hypervisor installed on that bare metal server. After you modify the tenancy of the vpc any new instances that you launch into the vpc have a tenancy of default unless you specify otherwise during launch.
The default in cloud is to share everything. Well tenancy determines who is the owner of a resource. As of may 2017 customers who want to run protected health information phi workloads no longer need to run their workloads on dedicated instances or dedicated hosts see announcement here.