What is multi-cloud strategy? And Why use it?
A multi-cloud methodology is the use of two or multiple cloud computing services. While a multi-cloud deployment can refer to any implementation of multiple software as a service (SaaS) or platform as a service (PaaS) cloud offerings. Today, it generally refers to a blend of public infrastructure as a service (IaaS) environments, such as Amazon Web Services and Microsoft Azure. It uses different providers to meet certain workload requirements. Also it is not necessary to connect each other. Enterprises choose a multi-cloud strategy because of the many advantages.
First of all, multi-cloud is readily available. Enterprise can work on the another cloud to achieve the goal even though one cloud gets disconnected. It is customizable and flexible. And hence an enterprise may “select the best of each cloud type to suit their specific business needs, economics, locations and timing.” Another significant draw for a multi-cloud adoption is that enterprises can escape vendor lock-in as its data is stored on various service providers’ clouds. A multi-cloud strategy offers security that single cloud does not.
The multi-cloud also hinders Shadow IT activity. The Shadow IT is “ a technology that individuals or groups uses within an organization that organization’s IT department couldn’t manage”. This problem arises when policy-compliant IT does not fully meet the needs of the organization. A multi-cloud environment enables groups to agree with IT policy while benefiting from a specific cloud technology.” It also avoids the gravity of a distributed denial-of-service (DDoS) attack. As the attack won’t affect all the clouds within a multi-cloud, leaving the enterprise still functional despite the attack.
Common uses for multi-cloud computing-
At first, many organizations uses a multi-cloud strategy because they were uncertain about cloud reliability. Multi-cloud is viewed as an approach to prevent data loss or downtime because of the localized component failure in the cloud. The ability to avoid vendor lock-in was also an early driver of multi-cloud adoption.
While redundancy and vendor lock-in concerns still drive some multi-cloud deployments today, they are likewise determined to a great extent by enterprises’ broader business or technical goals. Those objectives can incorporate the utilization of more cost focused cloud services or taking advantage of the speed, capacity or features offered by a particular cloud provider in a particular geography. Also some of the organizations pursue multi-cloud strategies for data sovereignty reasons. Certain laws, guidelines and corporate arrangements require undertaking information to physically live in certain locations. Multi-cloud computing can help organizations to meet since they can choose from numerous IaaS providers’ data center regions or availability zones.
This flexibility in where cloud data lives additionally empowers to locate compute resources as close as possible to end users to achieve optimal performance and minimal latency. A multi-cloud system likewise offers the capacity to choose distinctive cloud services or features from different providers. Some cloud environments are better suited than others for a particular task so this is very helpful.. For instance, a specific cloud platform may deal with enormous quantities of solicitations per unit time, requiring small data transfers on the average, while an alternate cloud platform may perform better for a smaller number of requests per unit time including huge data transfers. Some cloud providers also offer more big data analytics tools or other specialized capabilities, such as machine learning, than their competitors.
Pros and cons of Multi-cloud computing-
1. Reduced Dependency: The facility to deploy applications with multiple cloud providers decreases the dependency on a single provider. This facilitates the influence of most advantageous offer available around and switching between providers to avail these offers.
2. Hybrid platform: Some applications can be carried with Private cloud services and some with Public cloud services. Security, performance and cost optimization is achieved with hybrid platform. Hybrid cloud solution provides with faster services.
3. Comprehensive proficiencies: Services from different providers supporting different platforms offers distinctive thorough capacities. Options depending on the requirements are available. These options can be chosen as combinations to fit in comfort with cost benefits.
1. Different APIs: Different providers that provides services with different application setup, necessitates different APIs management. This will satisfied with particular devices to accomplish deployment and management even with combinations of different services.
2. Complex structure: The biggest challenge of multi-cloud is its inherent complexity with different technologies, different interfaces, different services, and different terminology. There is currently no standardization of terminology, instance sizes, or methodologies across cloud vendors.
3. Needs Management overhead: Management experts of these hybrid formations is required to determine and plan the cloud usage in various scope of subjects. To manage this hybrid platform efficiently, there is a need of experts in various ranges of subjects.
Multi-cloud computing vs. hybrid cloud computing-
Multi-cloud and hybrid cloud computing are similar, but different IT infrastructure models.
In general, hybrid cloud refers to a cloud computing environment that uses a mix of an on-premise, private cloud and a third-party, public cloud, with coordination between the two. An enterprise generally adopts hybrid cloud to achieve a certain task, such as the ability to run workloads in house, and then burst into the public cloud when compute demands spike.
Multi-cloud computing commonly refers to the use of various public cloud providers, and is more of a general way to deal with managing and paying for cloud services in a way that seems best for a given organization.
However, multi-cloud doesn’t preclude hybrid cloud, and a hybrid cloud could be part of a multi-cloud deployment. The two models are not an either/or situation; it simply relies on what a business wants to accomplish.
A multi-cloud strategy can also improve reliability. In particular, with multi-cloud a generally uninvolved cloud can flawlessly serve as the failover solution when the primary cloud has issues processing a requested service such as an e-commerce transaction. And, once the primary cloud is back to its normal function, the operations can automatically revert. Every advantage associated with a multi-cloud approach can prove instrumental in establishing or maintaining a competitive advantage in today’s digital economy. Of course, realizing these benefits requires a solid strategy to analyze opportunities and also access to a well-crafted management tool. A solid tool should help simulate migrations, as well as provide the visibility needed to ensure seamless inventory, security, migration, and change management.
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