Let’s start off with the basics: What is Multi-Cloud?
Multi-cloud may sound like another new industry buzzword and to a degree it is, however, it is the future structure of cloud computing- let’s dive in!
Multi-cloud is the use of multiple cloud computing and storage services in a single heterogeneous architecture. This also refers to the distribution of cloud assets, software, applications, etc. across several cloud-hosting environments. With a typical multi-cloud architecture utilizing two or more public clouds as well as multiple private clouds, a multi-cloud environment aims to eliminate the reliance on any single cloud provider.
For example, an enterprise may concurrently use separate cloud providers for infrastructure (IaaS) and software (SaaS) services, or uses multiple infrastructure (IaaS) providers. In the latter case, they may use different infrastructure providers for different workloads, deploy a single workload balanced across multiple providers (active-active), or deploy a single workload on one provider, with a backup on another (active-passive).
There are many reasons for deploying a multi-cloud architecture, including reducing reliance on any single vendor, increasing flexibility through choice, and mitigating against disasters. It is similar to the use of best-of-breed applications from multiple developers on a personal computer, rather than the defaults offered by the operating system vendor. It is recognition of the fact that no one provider can be everything for everyone. It differs from hybrid cloud in that it refers to multiple cloud services rather than multiple deployment modes (public, private, legacy).