Cloud computing has been in the news for all good reasons in the past few years. It is not surprising how solutions continue to evolve rapidly. Since it is an evolving technology, confusions are bound to happen. People can mix up terms without realizing it.
One of the examples here is the term ‘data centre.’ It is common for people to combine it with a cloud solution. Besides these two, there are also hybrid clouds and private clouds that can complicate things. In this article, we will take a look at the relationship between cloud computing and data centres.
How is The Cloud and Data Center Different?
Businesses use data centres for data storage or servers. There are several things like the hardware and its space, environmental controls, backup systems, power systems, etc. A data centre can have one or more than one server. Businesses like Amazon or Microsoft are the leaders in the cloud space as they offer data centres to organizations. It might lead to the question of how data centres and the cloud are related. Many companies prefer employees to know data centres. So, if you are the one who is looking to enhance your knowledge you can opt for cloud computing courses available online. Some of the data centre certifications are:
Some organizations also have their data centres at their premises. They also get referred as to as on-premises or on-prem. When people talk about their data centres, they usually mention their on-prem data centres. When it comes to the cloud, data gets stored and applications run on off-prem data centres that you can access through the internet. Let us take a look at different types of data centres in detail.
Public, Private, On-Prem Cloud
When we talk of a cloud data centre, the cloud company runs and manages the hardware with the help of third-party service providers. The applications and data of clients get managed through a virtual infrastructure on the cloud servers. Based on the needs of clients, service providers offer customized solutions with single access. It is called a private cloud, which is different from the public clouds that Google and Amazon offer.
Some businesses want privacy and control over their environment, making private clouds the best solution for them. The cloud has several benefits over on-prem data centres. When it comes to the cloud, businesses need to pay only for a part of the hardware they use. On-prem data centres need huge investments for hardware, power costs, upgrades and testing, security, etc. These costs get added to the subscription fees when we talk of the cloud.
Hybrid Clouds: Data Center + The Cloud
An environment that uses both the private or public cloud and on-prem data centres is a hybrid cloud. Most large businesses usually opt for such arrangements as they might have several teams with different usage levels. Usually, DevOps teams require separate clouds for testing and production activities. A hybrid cloud thus combines the best of both worlds. It gets the speed and scalability of the cloud and control and familiarity of data centres.
Common misconceptions about cloud and data centres
Each of the two has its advantages and disadvantages. At the same time, there are several misconceptions that people usually have about them. We take a look at them in detail.
Data centres are expensive
It is not true as you can also avail yourself of the cloud services at cheaper rates. However, the level of service will vary with each provider based on the budget. The costs of using these services depend on factors like usage, time of the day, etc. Adopting the cloud can be a cost-effective solution. However, businesses can face unforeseen expenses if they do not effectively plan migration.
The cloud lacks security
It was difficult for people to adopt cloud technology in the early days as there was a widespread belief that the cloud is not secure. People thought others would have access to their data when it gets stored on a shared platform. However, this is not true. Cloud providers offer better security than data centres. As cloud service providers have experts, it becomes possible for them to provide advanced security.
All important applications need to be in data centres
Many people believe it needs dedicated administrators who can provide security and continuous availability. Uptime is an issue, but that might not be the case always when it comes to security. A cloud service provider will often offer better services than internal resources. They will deliver according to the agreed terms that go much beyond what company resources can provide. It is possible to keep critical applications in company data centres, but it is not true that they offer more security than the cloud.
Migration and consolidation is tough
Cloud migrations can go wrong if not properly planned. However, it is not true that it’s tough and impossible to do. There are many reliable service providers out there who can do the job well.
Things to keep in mind when adopting the cloud and data centre
When organizations decide to adopt the cloud or data centre, there are several things to keep in mind. We take a look at each of them in detail.
Customisation and scalability
If a company wants a dedicated system with total control over its data and hardware, a data centre is useful. Only the origination will use the hardware, and they can run different types of applications and manage workloads. However, they have limited capacity. There will be additional costs related to the addition of storage space and other upgrades.
Cloud offers limitless storage, which depends on service providers and their offerings. However, there is not much control over the hardware as the vendor manages it. The hardware resources get shared with others unless a company uses a private cloud.
Building a data centre from scratch takes a lot of time, money, and resources. The responsibility of maintenance and administration also lies with the origination. It can be expensive to operate a data centre as compared to a cloud service. It will be especially true for small businesses. It is also possible to use a cloud service immediately when registered. There is also scope for scaling up or down the service based on the needs of a business.
When it comes to the cloud, the service provider needs to have all the latest security certifications. If there are multiple data centres, each will need to have its security measures. It is possible to access cloud data with valid credentials over an internet connection. So it becomes essential to safeguard the information. With data centres, only company people can access the data with registered login details.
How to learn cloud computing
A cloud computing course is the best option to know more about the technology and its applications, you can also take up courses from top online educators like Udemy, Great Learning, Coursera who are providing cloud computing course to enhance your skills.