What is Multi Cloud? Defination of Multi Cloud

Multi Cloud Definition

Multi cloud is the use of multiple cloud computing and storage services in a single network architecture. It is also written as multi-cloud or multicloud. This is the distribution of cloud assets, applications, software and much more across several cloud environments. With a typical multicloud system utilizing two or more public clouds as well as private clouds, a multi cloud environment focus on eliminating the reliance on any single cloud service provider or instance.

What is multi cloud?

In cloud computing, a cloud is a collection of servers that cloud users can access all over the Internet. Actually, Every cloud is managed by a cloud service provider which is a company that offers cloud services. A public cloud is a cloud that is shared by more than one user.

Multi-cloud means collection of multiple public clouds. A company that uses a multicloud architecture get benefits of multiple public clouds from more than one cloud provider. Instead of a company using one service provider for cloud hosting, storage, and the full application stack, in a multi-cloud configuration they use several cloud provider.

Multi-cloud deployments have a number of advantages. A multicloud architecture can leverage multiple Infrastructure-as-a-Service (IaaS) vendors or it could use a different vendor for IaaS, Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS) services. Multicloud can be purely focus on redundancy and system backup, or it can incorporate different cloud vendors for different services. Most businesses that move to the cloud will end up with some kind of multi-cloud deployment. A multi-cloud deployment can even come about unintentionally, as a result of shadow IT.

Data Availability Challenges in MultiCloud Environments

Multicloud environments generates an entirely new set of challenges. One of these challenges, data availability, is the process of maintaining access to your data at your required level of performance in situations ranging from normal everyday process to disaster recovery process. Individual cloud service providers have even solved most of these data availability problems within the context of their own clouds or services. Cross-service consumption, cross-region replication, snapshots, and backups, are all services that cloud providers currently offer to help over come combat data availability problems.

What happens, when we start thinking about the same data across multiple cloud providers? So, Organizations would need to take look on the role of coordinating data availability and security across multiple cloud providers. Ask these below questions before using the same data sets across mutiple clouds:

➟ How can we take the output from a service in one cloud provider and use it as input for a service in different cloud provider?

➠ How can we implement consistent data management policies across multiple cloud providers?

➟ How can we safely read and write to the same data set using multiple cloud providers?

➠ How can we manage capacity and performance across multiple cloud providers to ensure stable performance?

How Secure is Multi-Cloud?

Multicloud security has the specific challenge of protecting user data in a consistent way across a wide range of cloud providers. When a organization uses a multicloud approach, third-party partners handle different things of security. That is why it is important in cloud deployment to clearly define and distribute security responsibilities among the different parties.

Benefits of Multi Cloud Strategy

A multi-cloud strategy combines the best services that each platform offers. This allows companies to customize an infrastructure that is specific to their business goals and aims. A multicloud architecture also provides lower risk. If one web service providers fails, a business can continue to operate with other platforms in a multicloud environment versus storing all data in one place.


By using a multicloud strategy, a company avoids putting all their balls in one basket. If one cloud goes down, some functionality will still be available to users from the other deployed clouds. In addition, one public cloud could be used as backup to another cloud.

Reduced vendor lock-in:

Moving to the cloud service means relying on external cloud providers, and as companies use these vendors more and more, it can become difficult to move away from them. However, if a multicloud architecture is used, systems and storage are spread out across multiple vendors. Therefore it is quite easier to migrate away from using one of these vendors, because the majority of the infrastructure still remains in place during the migration.

Potential cost savings:

If a company does not commit to using one cloud vendor for all its infrastructure needs. It is free to pick and choose the most affordable cloud services from different service provider.

Shadow IT:

The term “Shadow IT” describes situations where business units in an organization adopt cloud services and technologies independently of the IT department. According to a 2019 study conducted by McAfee, the average business organizations uses a total of 1,083 different cloud services, yet just 108 of them, on average, are known to IT. However, That leaves an average of 975 cloud services per company that fall into the category of Shadow IT. In fact, a 2018 report compiled by IBM analysts discovered that 59% of company had moved to multicloud architectures through the adoption of cloud services by independent business units.


Leveraging services from multiple public cloud service provider can allow compay access to new availability zones that are more proximal to users, resulting lower network latency and enhanced application performance. For example, Amazon maintains a global network of data centers across 24 regions, a number they claim is twice more than the next largest provider of public cloud providers.

Each of these regions includes one or more availability zones. Defined as data centers with 50k-80k servers that use 25-30 MW of power. In total, There are 76 availability zones. And those within each region are connected by low-latency, high-speed networks. However, By taking advantage of these AZs, organizations can position data storage and compute resources quite closer to their users. So, This results in improved application performance and an enhanced user experience.

What are Examples of Cloud Providers?

There are many public cloud providers including:

➠ Google Cloud Plateform


➠ IBM Cloud

➟ Microsoft Azure

➠ Openstack (Private Cloud)

➟ Rackspace

➠ VMware Cloud

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