What is “hybrid cloud”?

In this paper, we define the concept of “hybrid cloud”, explain four different cloud deployment models of hybrid cloud, and deeply analyze the industrial trend of hybrid cloud through a series of data and charts.

01 introduction
Hybrid cloud is a computing environment that integrates multiple platforms and data centers. Generally speaking, hybrid cloud is a combination of a variety of on premises resources provided by cloud service providers, but it can also include a variety of cloud platforms and cloud services without local components.
“Data services and schemas should be placed on the server. We call it cloud computing – they should be in the ‘cloud’ somewhere. “
——Eric Schmidt
Search engine Strategy Conference 2006
What is
The modern cloud computing period began in 2006. Up to now, the cloud industry has exploded into a $153 billion market. According to Gartner, a multinational research and consulting firm,The cloud computing market will grow at a rate of more than 21% per year
Cloud computing is a new mode of allocating and using servers and computing resources, which marks a fundamental change.
For enterprises, cloud computing provides a new platform for developing applications and services. Before that, enterprises had no choice but to use the local data center within the enterprise, and the IT department purchased and deployed hardware to provide power for the company’s technology frontier.
When cloud computing was first introduced, people seriously questioned its reliability and security. However, with the passage of time and the technical improvements invested by cloud service providers such as Amazon, Microsoft, Google and IBM in their cloud products, some popular applications such as Netflix publicly announced that their workloads were not deployed locally at all.
It is worth emphasizing that these early cloud computing companies have the inherent advantages of growing up in the cloud world. Compared with establishing their own local data center, they can spend more time and cost to focus on shortening the time to market.
However, some enterprises are trying to maintain the existing internal technology infrastructure because they have invested millions of dollars in it, and these infrastructures provide the foundation for enterprises to succeed. What does cloud computing mean for these enterprises?
  • How to deal with some cost factors, such as the cost incurred by Dropbox’s full reliance on the public cloud (Dropbox saved more than $746 million in operating expenses in two years after migrating from Amazon AWS to its special customized infrastructure)?
  • Both public and private clouds have experienced a surge in development tools, which has led to internal conflicts between enterprises on what kind of cloud to choose for a task. How should we face it?
  • How to solve the security and governance concerns of placing sensitive information in an unmanaged data center?
The paradox of choice defines the cloud world, and the dispersion of options makes it difficult for people to sort out. Such challenges will exist for a long time, and today’s business needs will continue to need the support of cloud strategy. Therefore, hybrid cloud strategy should become the core concern of innovators and decision makers of every enterprise.

02 Explore the maze of mixed clouds
The development of science and technology exceeds that of any other field, and the cloud era is also in the stage of rapid transformation. In the midst of accelerated change, thought leaders are actively working to define the terms used to describe this evolving ecosystem.
  • Amazon: in cloud computing, hybrid cloud refers to the use of local resources in addition to public cloud resources.
  • Microsoft: hybrid cloud is a computing environment combining public cloud and private cloud. Data and applications can be shared between the two.
  • IBM: hybrid cloud is based on the use of private cloud, combined with the strategic integration and use of public cloud services.
  • Red hat: hybrid cloud is a combination of one or more public and private clouds arranged by management and automation software. It allows workloads, resources, platforms and applications to migrate in different environments.
  • Gartner: hybrid cloud refers to policy based and coordinated service provisioning, use and management across internal and external cloud services.
  • ZDNet: one or more public clouds are connected to something in their own data center. This can be a private cloud or a traditional data center infrastructure.

03 Definition of terms
For clarity, the following are the definitions of the most commonly used terms:
  • Local resources (on premises):Technical resources, data centers, and data sources hosted in the company’s infrastructure. Usually this means that the company buys the hardware and connects it through a private network.
  • Public cloud: technical resources, centers and data sources deployed externally by cloud service providers. These resources and architectures coexist with other shared resources that do not belong to a single company and can be accessed through the public Internet.
  • Private cloud:Technical resources, data centers and data sources deployed externally by cloud service providers or hosted in the company’s internal infrastructure are usually used in combination with deployment / management containers or virtual machine software (such as VMware, openstack and kubernetes). The private cloud is a part of the company’s exclusive resources, and only the company can access it through the private network.
  • Hybrid cloud:It includes technical resources, data centers and data sources based on infrastructure in multiple environments. It is usually a combination of resources provided by cloud service providers and local resources, but it also includes multiple cloud platforms without local components.
  • Inter cloudTechnology resources, data centers and data sources across different cloud service providers. Specifically, its most significant feature is that there is traffic between the off-site infrastructures of different cloud service providers, and it can also contain local components. It can be said that cross cloud is a subset of hybrid cloud.
  • Multi cloudTechnology resources, data centers and data sources across multiple cloud service providers and local resources. The difference between multi cloud and cross cloud is that there is no traffic between cloud service providers in multi Cloud Architecture. Cloud service providers are connected to local resources through private networks. Cloudy is also a subset of mixed clouds.
What is

04 Detailed explanation of mixed cloud
Gartner defines four different cloud deployment models currently used by it organizations, all of which focus on some form of hybrid cloud.
What is
1. Architecture spanning
This is a scenario where an enterprise is expanding its IT capacity through a cloud provider. This strategy may be applied for a variety of reasons, including the need to urgently utilize the cloud to obtain more resources, or place data in multiple places to improve performance or meet compliance requirements. With this form of hybrid cloud, applications can reside on the infrastructure hosted by cloud service providers, while data can reside in the company’s self hosted data center.
2. Use case specific
This situation means that enterprises deploy different versions of the same application in different places at different development stages. For example, companies may prefer to develop and test in the cloud to ensure flexibility; Production instances run on specially provisioned internal hardware. This often means that enterprises do not intend to integrate the application itself with native cloud services.
3. Multi cloud
This term means that all modern applications of the company are running in the cloud, or in an architecture that spans local resources and multi cloud services. This model caters to the concept of “developer first”. Application developers do not need to be limited by specific clouds, but can freely choose the most appropriate technology according to tasks, whether the technology is provided by cloud service providers or customized by internal departments.
4. Inter cloud
This term profile defines the evolution of multi data center and multi location design. The characteristic of this deployment is that there is traffic across cloud service providers, which enables enterprises to obtain the best services in subdivided areas while avoiding supplier lock-in. A case cited by Gartner is that “Microsoft’s powerbi can connect to the salesforce database located outside the azure cloud infrastructure”.
All the above types of hybrid cloud deployment have their own defects. It is important to design the model that best suits the needs of the enterprise, and the balance between SLA, cost and technical products will drive decision-making.

05 Industrial trend of hybrid cloud
Before further studying the trend of hybrid cloud, it is necessary to take a look at the general pattern of cloud industry. Obviously, this market is growing at an alarming rate.
  • Global public cloud service turnover forecast
What is
  • Trend and adoption of hybrid cloud
What is
  • Major players in the cloud market
Although the adoption rate of the whole field is increasing, there is clearly a leader in the cloud market.
What is
  • Enterprise Cloud strategy
The vast majority of enterprises are adopting multi cloud strategy, of which 51% adopt hybrid cloud.
What is
This figure is probably not entirely accurate because, as mentioned earlier, the definitions of cloudy and hybrid clouds vary depending on the source. However, the overall trend is still very obvious – in order to flourish in today’s enterprise economic structure, many companies are migrating powerful key application deployments to the cloud.

Gartner also pointed out that “by 2020, most data and analysis use cases will have to be connected to distributed data sources”, and “most organizations’ DBMS deployments will coexist locally and in the cloud – that is, hybrid cloud DBMS”.
Every day, new articles mention that some companies have migrated some of their application stacks to the cloud outside the local infrastructure. This trend shows no sign of stopping.
At datastex, we have63% of customers run their applications on the cloud, and more than half of customers deploy applications in multi cloud, hybrid cloud or their combined infrastructure environmentclick here Learn more.

06 Hybrid cloud and datastex enterprise
Datastex enterprise (DSE) is the most powerful cloud database designed for hybrid clouds.
Whether in public cloud, private cloud or hybrid cloud environment, DSE can easily span cloud regions and data centers through automatic operation and maintenance.
DSE can help enterprises easily deploy key applications in different cloud environments without making any changes to applications.
Distributed cloud database enables you to take full advantage of hybrid multi Cloud Architecture:
  • Easily and conveniently select the required services from any IAAs supplier;
  • Design the architecture according to the cloud service you choose;
  • Distribute the data in different regions to meet the requirements of governance and compliance;
  • While running services on the local preset database, make full use of the resources provided by multi cloud;
  • Seamlessly use the tools provided by different IAAs vendors or realize cross vendor migration, so as to provide performance expansion for a large amount of data on the premise of zero downtime;
  • Backup within the enterprise or across the cloud, or evacuate areas with downtime concerns, so as to protect applications and customer experience from service interruption.