A hybrid cloud is a cloud calculation environment that
combines the capabilities of an on-premises private cloud with the capabilities
of a third-party public cloud. The combination of the two allows data to move
between private and public cloud platforms, providing more flexibility and more
deployment options. The computing environment is especially important for
dynamic or highly variable workloads.
Private cloud vs public clouds
Private clouds
A private clouds hosting solution consists of computing
resources under the exclusive control of an organization that protects your
company's data behind a firewall. The hardware and software are intended solely
for that particular organization. A private cloud implementation will be more
beneficial for companies that already have an expensive data center with
business-critical operations. However, the company is fully responsible for
maintaining, managing and updating the data center.
Disadvantages of private clouds
Expensive - The organization must replace any legacy
servers.
Benefits of private clouds
Highest level of security - very few resources, if any,
are not transferred to other organizations.
More flexibility - The cloud can be customized to suit
your specific needs.
Highly scalable - Private clouds continue to provide the
scalability and efficiency of the public clouds.
Private clouds are often used by financial institutions,
government agencies, and any other medium to large organization.
public clouds
Unlike a private cloud, all hardware, software, and other
infrastructure that supports a public cloud is wholly owned and operated by
third-party cloud providers. This cloud environment is attractive to companies
because it reduces the time it takes to deploy and test hardware. Third-party
public cloud resources may also be used by other companies through Internet
browsers.
Disadvantages of a public cloud
Limited security - Hardware, storage and network devices
can be exchanged, making security insufficient.
Benefits of public clouds
Maintenance-free - All maintenance, management, and
updates are performed by a third-party vendor.
Cost effective - the organization is not responsible for
product replacement.
High reliability - there is an extensive network of
servers guaranteeing against failures.
Nearly Unlimited Scalability - On-demand features are
available to meet your business needs.
Public cloud deployments are often used to provide storage,
online office applications, web email, and test and development environments.
Getting the best
of both worlds
Hybrid cloud brings together the best elements of private
and public clouds and brings them together for greater flexibility and
scalability. With the "detonate in the cloud" option, an application
can primarily run in the private cloud for sensitive workloads, and then
"detonate" in the public cloud when additional computing resources
are needed. For example, organizations may experience a surge in demand, for
example, due to seasonal events such as online shopping or filing tax returns.
While a developer can build advanced applications using a
combination of features and services across public and private platforms, the
key to a successful hybrid cloud is choosing the appropriate hypervisor and
cloud software layers. These elements must support the application programming
interfaces (APIs) and services of the desired public cloud. The implementation
of interoperable software and services also allows data to be seamlessly
migrated between private and public clouds.
