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What is Hybrid Cloud?
Hybrid cloud is defined as a computing environment that incorporates infrastructure from multiple platforms and data centers. Most often, it’s a combination of on-premises resources with those offered by a cloud service provider. But it could also consist of multiple cloud platforms and services with no on-premises component.
Introduction to hybrid cloud architecture
Cloud computing is everywhere and will continue its strong growth. However, some tooling incompatibilities, security constraints, or cost considerations could prevent some components from moving to the cloud.
Since the start of modern cloud computing in 2006, the cloud industry has erupted into a $153 ≈billion market, projected by Gartner to grow more than 21 percent per year. This next generation model for server and compute resource consumption embodied a fundamental shift for enterprise companies, and a new surface for them to build applications and services. Before the cloud came into play, the on-premises data center, hosted within a company’s walls, was the only option. At that time, IT departments were responsible for acquiring and configuring the machinery to power the organization’s technological front.
Data services and architecture should be on servers. We call it cloud computing – they should be in a “cloud” somewhere.
Eric Schmidt
2006 Search Engine Strategies Conference,
Understanding the different types of cloud database technologies
As the name suggests, hybrid cloud is a mixture of multiple cloud types and deployments.
Let’s review the options.
On-premises
Technology resources, data centers, and sources that are hosted within a company’s infrastructure. Typically this means that the company purchased hardware and is connected via a private network.
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Public cloud
Technology resources, data centers, and sources that are hosted by a cloud service provider off-premises. These reside alongside other resources that are not occupied by a single company and are accessible via the public internet.
Take a look at our resources about three leading public cloud providers: , , and .
Private cloud
Technology resources, data centers and sources that are hosted either by a cloud service provider off-premises or within a company’s infrastructure. Typically, this is in conjunction with deployment management, container, and virtual machine technologies. Solutions like VMware, OpenStack, and Kubernetes are often in the mix. These resources are only available and accessible to a single company via a private network.
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Hybrid cloud
Technology resources, data centers and sources that incorporate infrastructure from multiple environments. Most often, it’s a combination of on-premises resources and those offered by cloud service providers. It also likely includes multiple cloud platforms.
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Multi-cloud
Technology resources, data centers, and sources that span multiple cloud service providers and on-premise resources. The difference between this and intercloud is that there is no traffic between the cloud service providers in a multi-cloud architecture. The network between the cloud-service providers and on-premises resources may be via a private network. This is a subset of hybrid cloud.
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A Closer Look at Hybrid Cloud
that IT organizations are implementing, and all of them have some form of hybrid cloud at their core.
Architecture spanning
This strategy, where a business expands IT capacity with a cloud provider, may make sense for a variety of reasons, including the necessity to burst to the cloud for additional resources or to co-locate data where it is needed for performance or compliance factors. With this form of hybrid cloud, applications may live on infrastructure hosted by a cloud service provider and the data may reside within the company’s self-hosted data centers.
Use case specific
This describes a setup where enterprises have versions of the same application deployed in different locations based on the stage of development. For example, a company may prefer that development and test occur in the cloud for flexibility, while the production instance is running on specially provisioned in-house hardware. This case hinges on the fact that the application itself is not integrating with cloud-native services.
Multi-cloud
A multi-cloud approach is when a company runs different modern applications either all in the cloud or in an architecture spanning on-premises resources and also with those offered by multiple cloud providers. This model caters to a developer-first mindset. Application developers are not siloed to a particular cloud. Instead, they have the freedom to choose the technology that fits the task, whether it is offered by a cloud service provider or through custom, internal services.
Intercloud
This deployment is the evolution of the multi-data center, multi-residency design and features cross-cloud service provider traffic. It boasts the ability to avoid vendor lock-in while taking advantage of best of breed services. Here’s an example referenced by Gartner, “Microsoft's Power BI might connect to a Salesforce database residing outside of the Azure cloud infrastructure.”
Hybrid cloud trends and increased adoption
If we group some sectors, we see that 66 percent of users will increase their cloud spend by 20 percent or more. Cloud is growing strong.
Public cloud spends for 2018
Public cloud spends for 2018 If we group some sectors, we see that 66 percent of users will increase their cloud spend by 20 percent or more. Cloud is growing strong. Within the cloud market, adoption is increasing throughout the field of competitors, with some clear front-runners.
AWS is leading, but Microsoft Azure is catching up, reaching 70 percent of the AWS adoption.
Distribution of cloud providers for application hosting
The strong majority of enterprises are adopting multi-cloud strategies, with 51 percent citing hybrid cloud.
This must be taken with a grain of salt. As mentioned before, definitions for multi-cloud and hybrid cloud vary depending on the source. However, the trend cannot be denied. Companies are moving to the cloud to thrive in today’s enterprise economy, deploying powerful, mission-critical applications.
Distribution of cloud strategies at enterprise companies
More than 80 percent of companies with one thousand or more employees use a multi-cloud approach. Avoiding vendor lock-in, is likely a common reason.
Gartner also states, “By 2020, most data and analytics use cases will require connecting to distributed data sources” and “most organizations' DBMS deployments will coexist in the on-premises and cloud worlds simultaneously — the hybrid cloud DBMS.” New articles are published every day highlighting companies migrating a portion of their stack to off-premises infrastructure. This trend shows no signs of slowing down.
At DataStax, 63 percent of our customers have applications running on clouds. More than half of those are deploying applications on multi-cloud, hybrid-cloud, or a combination of those infrastructure environments. .
Hybrid cloud and DataStax Enterprise
is the most powerful database designed for hybrid cloud. Whether public, private, or hybrid cloud, DataStax Enterprise easily spans across cloud regions and data centers with self-driving operational simplicity, allowing enterprises to easily deploy mission-critical applications across cloud environments without having to actually change anything about the applications.
A distributed cloud database enables you to leverage a hybrid, multi-cloud architecture to:
- Choose the services you want from each IaaS vendor with ease and ability
- Design your architecture with the cloud services you choose
- Geographically distribute data to meet governance and compliance requirements
- Implement services on your on-prem database and leverage resources from multiple clouds
- Seamlessly leverage tools offered by different IaaS vendors or move across vendors to scale for incredible data volumes, without downtime
- Protect apps and customer experience from service disruptions with the ability to replicate to on prem or across clouds, or evacuate regions due to outage concerns
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