Cloud computing is vast. It encompasses a huge range of architectural styles, classifications, and types. This complex computing network has transformed the way we work and is a crucial part of our daily lives, both at home and at work. For organizations, there are many ways to “cloud”, but let’s start with the basics of cloud computing; the internet cloud. This is generally categorized into three types:
Cloud computing was created because the amount of data an organization has to store and manage has grown exponentially over the past few decades. Companies were beginning to install more and more physical storage space, which became ever more expensive and cumbersome. Cloud storage removes this burden.
Your confidential data is stored in a secure, remote location. It is “the cloud” to us, but it does live in a physical location. All this means is that it is housed by a third party, not on your premises. In most cases, you don’t know where this cloud is located. You can access programs, apps, and data over the internet just as easily as if it was on your own personal computer.
The most common use cases of cloud computing include Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). In most cases, you can decide whether to set it up as a public or private option.
Anything said to live in the cloud refers to docs, apps, data, and anything else that does not reside on a physical appliance; your computer, a server, hard drive, etc. It lives in a huge data warehouse and is accessed only over the internet. A public cloud does not mean that just anyone can log in, but it is more accessible than other types of clouds. This makes it the most popular.
A common use is wedding and vacation photos. You can upload your pictures and give an access link to all of your friends and family. Organizations of all sizes like this format because it provides:
Public cloud services are often free or offered as a freemium or subscription-based service. The computing functionality they provide can range from basic services such as email, apps, and storage to enterprise-level OS platforms or infrastructure environments your team can use for software development and testing.
A “public” cloud is only accessible to people with your permission. Security is very tight. As recent history has shown, the majority of data leaks actually originate in-house. The public cloud offers:
It should be noted that cloud security is a shared responsibility. Your cloud service provider is responsible for the security of the cloud, and you are responsible for your security in-house. Customers using cloud services need to understand they play a large role in securing their data and should ensure their IT team is properly trained.
Operating in the cloud is the best step forward for organizations. In addition to the most obvious benefits listed above, the cloud provides greater agility, higher efficiency, and more room to grow. When you are ahead of your competition in these areas, you can be ahead in the market, as well.
The top cloud computing service providers are Amazon and Microsoft, closely followed by Google, Alibaba, and IBM. Let’s take a closer look at each:
The private cloud is a cloud solution that is dedicated to a single organization. You do not share the computing resources with anyone else. The data center resources can be located on your premises or off-site controlled by a third-party vendor. The computing resources are isolated and delivered to your organization across a secure private network that is not shared with any other customers.
The private cloud is completely customizable to meet the company’s unique business and security needs. Organizations are granted greater visibility and control into the infrastructure, allowing them to operate sensitive IT workloads that meet all regulations and without compromising security or performance that could previously only be achieved with dedicated on-site data centers.
Private clouds are best suited for:
The most common benefits of a private cloud include:
As effective and efficient as the private cloud may be, there are some drawbacks. These include:
A public cloud solution is all about delivering IT services directly to the client over the internet. This cloud-based service is either free, based on premiums, or by subscription according to the volume of computing resources the customer uses.
Public cloud vendors will manage, maintain, and develop the scope of computing resources shared between various customers. One main differentiating aspect of public cloud solutions is their high scalability and elasticity.
They are an affordable option with vast choices based on the requirements of the organization.
A private cloud puts the main focus on virtualization and thereby is able to separate the IT services and resources from the physical device. Applications are available virtually on the cloud, as they do not run locally on servers or end devices. It is an ideal solution for companies that deal with strict data processing and security requirements. It allocates services according to the needs of the client, making it a more flexible option.
For tighter security, a firewall is installed to protect the private cloud from any unauthorized access. Only users with security clearance are authorized to access the data on private cloud applications either by use of a secure Virtual Private Network (VPN) or over the client’s intranet. Users are granted the authentication rights needed to access the services.
A hybrid cloud is a computing environment that combines an on-site data center, sometimes referred to as a private cloud with the power of a public cloud. This allows the two systems to share data and applications between them as needed.
A hybrid cloud is defined as a mixed computing, storage, and services environment that is made up of a public cloud solution, private cloud services, and an on-premises infrastructure. Examples of this include Amazon Web Services (AWS) and Microsoft Azure. Using this combination gives you great flexibility and control and allows you to make the most of your infrastructure dollars.
Although cloud services are able to save you a lot of money, their main value is in supporting an ever-changing digital business structure. Every technology management team has to focus on two main agendas: the IT side of the business and the business transformation needs. Typically, IT follows the goal of saving money. Whereas the digital business transformation side focuses on new and innovative ways of increasing revenues.
The main benefit of a hybrid cloud is its agility. To stay ahead of the game, organizations must be able to adapt and change directions as quickly as possible. This is the core principle behind every business, and a hybrid computing solution can make it work. A business might want to combine on-premises resources with private and public clouds to retain the agility needed to stay ahead in today’s world.
When computing and processing demands increase beyond what an on-premises data center can handle, businesses can tap into the cloud to instantly scale up or down to manage the changing needs. It is also a cost-effective way of getting the resources you need without spending the time or money of purchasing, installing, and maintaining new servers that you may only need occasionally.
Hybrid cloud platforms use many of the same security measures as on-premises infrastructures, including security information and event management (SIEM). In fact, organizations that use hybrid systems find the security to be better than their on-site data center because of the automatic updates, automated data redundancy, disaster recovery, high availability, and strict cybersecurity features.
Having multiple vendors is a common practice these days. A multi-cloud architecture uses two or more cloud service providers from a number of different computing vendors. A multi-cloud environment can be several private clouds, several public clouds, or a combination of both. The main purpose of a multi-cloud environment is to reduce risks. Resources are distributed to different vendors to minimize the chance of downtime and data loss.
Multi-clouds also increase available storage and computing power.
There are a few Agile certifications available to choose from, and in this article, we’ll discuss the best agile certifications currently available for IT professionals.
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