Analyze the choice of private cloud or public cloud and new trends

Businesses often face a choice: public cloud or private. The public cloud might be an easy choice, but it's not the right choice for all.

The adoption of public cloud continues to grow, but private cloud platforms are not regressive, in fact they are still being heavily exploited.

IDC predicts that 75% of businesses using public cloud will also use the private cloud platform by 2020. While many businesses use private cloud outside the public environment, the infrastructure on the single-tenant model still has can be a suitable independent option. One reason for the continued existence of the private cloud is the maturity of technology, as well as the development of vendor and platform options, said Deepak Mohan, research director at IDC.

In addition, while the public cloud provides many benefits, such as increased scalability and flexibility, some businesses do not want to give up the advantages of the private cloud platform, such as controlling infrastructure. more direct and in some cases lower costs.

The advantages of private cloud still exist
Most administrators want to be able to monitor and control their environment as much as possible - something they feel can be achieved with private, not private, public clouds.

Compliance with regulatory and administrative issues is important for businesses that have workloads with sensitive data and must follow strict requirements, but public cloud providers may not be able to respond. fully meet these needs. The emergence of new standards, such as GDPR, requires businesses to follow rigid guidelines for data protection in the EU. In addition, some businesses have high availability requirements that public service-level agreements may not always meet.

Hyoun Park, founder and CEO of Amalgam Insights, a Boston-based consulting firm, said: “Business IT organizations are accustomed to the level of control and visibility they don't necessarily recognize. from Amazon or Microsoft. "

Also, the notion that public cloud costs less is not always true, because there are many factors that influence how much the business will spend to run its workloads.

"Depending on the exact scenario, it may actually cost less to run the workload in the private cloud than the public cloud [or vice versa], but it depends a lot on the workload and the results," Carl Brooks, Analyst at 451 Research said.

Static and predictable workloads are often more suited to private cloud platforms because businesses can plan and consume resources more efficiently. With greater visibility into their environment, administrators can also more closely monitor their spending and budget.

Due to its scalable requirements, the public cloud is a good choice for workloads with unpredictable usage patterns or spike in demand. However, this flexibility can also result in unexpected charges and costs.

Excessive spending in the public cloud generally occurs for two reasons: Users turn around resources and forget to pull them back or they are not properly sizing their resource needs, resulting in buying more than they need. workload.

"They are fairly simple concepts, but they are harder to implement in the OpEx environment," says Mindy Cancila, managing vice president at Gartner.

To avoid unexpected invoice surprises, businesses must carefully evaluate their workload requirements - both now and in the future - before moving on to the public cloud. Use vendor estimation tools and migration services to help estimate costs, as well as vendor or third party cost management tools to optimize cloud spending.

"We see a lot of businesses get burnt budget because of the very high cost [and] unexpected costs in the public cloud because they don't make the estimates early," Brooks said.

Sometimes, moving to the public cloud can be an experience and help businesses better understand their workloads and needs. "What I really see is [businesses] are pausing, organizing their systems, because they may have gone beyond their means or they have spent more than they thought," Cancila said. .

=> Public cloud providers move to on-premises
=> It seems that to meet the needs of businesses for on-premises technology, some of the leading public cloud providers now offer integrated hardware and software platforms to bring public cloud services to hubs. Data in place. The most used solution is the Microsoft Azure Stack, but AWS also recently revealed Outposts, a device that enables AWS services to come to a local facility.
=> However, these types of technologies are still relatively new, and almost certainly there will be some bumps on the road when implemented.
=> Brooks said: "Things like Azure Stack and AWS Outposts are vendor tests to see what sticks, but they're a complete response to business needs for interoperability [up]." .

Private cloud versus public cloud: Not an all / or one option.

Of course, like many other technologies, there is a flow between private and public cloud deployment models, and thus, the increasing popularity of hybrid clouds.

"This is not an all / or one situation," Cancila said. "It's important that [businesses] focus on what they really need from this app and how [they can] lay out the right architecture to [they] realize its benefits."

Businesses should not just focus their discussions on the question "which deployment model is better?", But rather "how do workloads run to their full potential?".

"This is really about application, results and converting those to take advantage of modern systems rather than a white / black clarification contest between public cloud and private," Brooks said.