Cloud computing is an emerging
branch of computer science. It is referred to as cloud computing because the
all the applications and data is in a cloud of web servers. Despite the fact
that it is called an emerging field, the idea has been around for a while.
Cloud computing architecture is divided into two parts; there is the back end
and the front end. It is just like many content management systems such as
Drupal or 3DMAX. There is the front end which is accessed by the users and the
back end which is used by system administrators. These two sections of the
cloud are connected to each other by a network.
In most of the times the means of connecting these two is through the internet.
The section that is accessed by
the users, that is the side that the customer or the cloud user is able to see.
The back end is the cloud part of the cloud architecture. The front section of
the cloud is usually a mobile phone, a laptop, desktop or a computer network.
This section also has all the applications
that are required in order to access the cloud services. Such applications
include web browsers, email
programs which use the web browsers and other programs that are unique in the
way they operate according to the customer needs.
The back section is made up of
servers, computers and storage systems that make up the cloud system.
Therefore, it is safe to assume that cloud computing involves all computer
programs that can basically do anything ranging from crunching massive data as
well to processing data for video game programs. For such a system to work
seamlessly, each program is hosted on its own dedicated server. A central
server is used for system administration. It is also responsible for monitoring
traffic according to the shifting demands from the customers. The central
server follows defined protocols and uses special software called middleware in
order to allow communication between different computers.
When considering the issue of private cloud architecture, one of
the main things that one should consider is the ability to serve multiple
tenants through the means of shared infrastructure as well as providing an
option of chargeback or at least showing the mount of storage that each
department is using. Some other considerations that might be useful when
choosing private cloud architecture include location independence, massive scalability and the ability of the cloud model to expand
or contract in order to geographically meet all the needs of the users who are
using that cloud. Apart from the safety and security of
the data, these cloud housing services swiftly manage the overwhelming web
traffic. Public cloud hosting services provide services to several customers at
the same time.
Therefore, one cannot just go out
there and just buy the cloud from just any cloud service provider. When
selecting private cloud storage options, one has to completely change the line
of thinking. It might help to understand that most people do not really
understand what cloud storage means. There is a term that has been
developed in the IT circles about cloud washing which
generally refers to the practice of cloud vendors just sticking any name to a
cloud service that has already been in the market for several years without
making any changes to that cloud service with the intention of making it seem
like it is a new cloud service. Private cloud architecture mainly consists of virtualized servers which enable users to access data and data
movement between several and distinct geographical locations.
Many organizations have created
monsters in their bid to create a hybrid cloud setting. Such a scenario happens
when there is no proper balancing of the private and public clouds leading to
the incorporation of unequal legacy and cloud infrastructures that do not work
well together thereby reducing the benefits that are meant to be enjoyed when
using the hybrid cloud. A Network Computing article recently written by Susan
Fogarty, in pursuit off the purpose-built hybrid cloud, she defines the main problem as having nothing to do with public
or private cloud, but on how the two can be efficiently blended together.
Therefore, the question that remains is how organizations can come up with the
most successful hybrid cloud architecture.
A good example of a company that
has excelled when using hybrid cloud model is Distil
Networks. This website security firm has
adopted a new form of hybrid cloud architecture. The hybrid cloud model
involves private hosted services that burst into shared resources. The firm
protects clients against malicious programs and such a task needs very high
computing power. The company started adopting this new form of hybrid cloud
architecture after it started to migrate from Amazon Web Services. Almost all
of its infrastructure is hosted on Bare-metal
cloud
by Internap. One of the
advantages of Bare-metal is that clients have the ability to configure and
customize their own dedicated servers which are hosted at Internap’s data
centers.
The hybrid environment created by
Distil Networks is achieved through integrating their services with Internap’s
virtualized services. This makes it possible to make use of the cloud’s virtual
instances in order to scale up and handle huge traffic dumps and then turning
down once the traffic has reduced. This has played a big role in minimizing the
cost of operating such kind of hybrid cloud service.
Incidentally, there are two kinds
of customers who enjoy success when using the cloud. The first group of
customers is the tech-savvy customers. These customers have no qualms when they
make a decision to venture in to the cloud. They do not have constraints of
legacy infrastructure therefore, making them to have better chances on
capitalizing on the cloud much more easily. The second group of customers is
the proactive group whose main focus on technology is using it as a
differentiator. The companies that belong to this group might be large or small
and in most of the times they made the decision of plunging into the technology
world in order to reinvent their businesses.
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