What is public cloud?
Based on the standard model of cloud computing, the service provider of a public cloud provides resources like applications, storage, which are accessible by the pubic using the Internet. Public cloud services may either be free or subscribed to a pay-per-usage cost model.
A major advantage of using public cloud is greater scalability. Since the resources are provided on-demand basis, changes in activities are handled efficiently, which results in cost effectiveness of the service. Users save money that might have been spent on large-scale operations. Free services such as Google Drive are also on offer.
Public cloud services provide business scalability because it is simple to use and offers immediate resolutions of customer problems. Users can also scale up the storage system to keep pace with industry growth because it is easy to switch between performance categories.
A major downside is higher cost-per-hour due to aggregation of additional computing resources. Scalability for increasing performance will multiply the factor cost within a specified level of CPU and RAM for each category. It is easy to calculate the per hour computing costs for public cloud services. These costs are variable and may be changed by the service provider. Storage costs are incurred additionally so you must consider and monitor these costs carefully. Risk management and reliability have little control over location of systems or in cases of redundant technology.
Of course, there are disadvantages of implementing public cloud services. First of all, data security over public cloud is a major concern. Although, public clouds are not limited by geographical constraints that makes it easily accessible, however governing cloud servers is a challenge for service providers. Your cloud server may be located in a different region while it might be governed by different security regulations and data privacy standards. Hence public cloud is not a good option for accessing sensitive data.
What is private cloud?
The term ‘private cloud’ describes a platform for cloud computing implemented within a corporate firewall, which is under the control of the company’s IT department. Its design offers similar features and benefits as in public cloud, but eliminates several objections of cloud computing such as control over customer and enterprise data, issues related to security, and problems of regulatory compliance.
Private cloud computing has several benefits as listed below.
Private clouds are hosted on multiple servers that results in sharing of load and traffic efficiently. It improves the overall performance of your website or application due to better page load speed and website capacity.
As we have discussed above, public clouds poses a huge security risk for enterprises. A private cloud is a safer alternative. These systems allow users to exercise more control over securing customer and enterprise data over the cloud server.
Private clouds offer greater business scalability. Enterprises are presented with an opportunity to scale up or down to utilize their resources optimally. Paying every time for increasing website’s capacity is a redundant phenomenon. It is also redundant to find the speed of a website reducing due to overload and traffic.
Setting up a private cloud is easy. You can setup a private cloud with the help of a dedicated/shared hardware or maybe both, whichever suits your business requirements. A dedicated private cloud increases the data security and gives users greater control over the hardware.
On the contrary, a shared private cloud increases flexibility, lowers deployment time, and promotes greater scalability. You can scale up your cloud environment and hardware capabilities continually using a dedicated cloud server.
Suppose your enterprise is not able to afford a website that continuously crashes due to traffic overload, private cloud seems to be a preferable option. A private cloud can scale up to fulfil the capability and capacity requirements. Additionally, the server is specifically designed to handle traffic spikes. Moreover, private cloud is cost-effective.
Otherwise, during high website traffic you would be looking for options to buy more bandwidth.
Disadvantages of a private cloud
Along with numerous advantages of a private cloud, it is accompanied with certain disadvantages as well.
Implementation is complex
if you do not use the services of a third-party cloud service provider, you will not be able to implement the private cloud system securely. Hiring a specialist who has extensive subject knowledge is the best option for implementing private cloud services.
Additional IT activities
Frequent maintenance and updates are some of the tasks that come with private clouds in order to address security concerns. Thus, you will require more staff to delegate tasks of specifically managing the cloud servers.
Implementation and maintenance costs
for public cloud, you need to pay a fixed amount as a subscription fee. However, implementing a private cloud comes with several one-time and recurring costs. For instance, man-hours spent building and maintaining the system, specialized hardware of the business, and regular security checks. These additional costs may cross the fees incurred on public cloud but in the long run the costs even out.
Since private clouds are hosted within a specific area, extreme weather, fire, or natural disasters may hamper the performance of your cloud system. Experts have suggested several ways to create a data backup however none of these are authentic and foolproof. It is always recommended to keep a backup of the critical information of your business; you must store this data on servers present in a different location.
What are hybrid clouds?
Hybrid cloud refers to a cloud computing system that is a combination of on-premises, private cloud and third-party, public cloud services combining features of both platforms. It enables tasks to shift between private and public clouds such as computing needs and costs change. Hybrid clouds give enterprises greater flexibility and increases options of data deployment.
What is cloud computing?
The term ‘cloud computing’ refers to a system of computing that involves sharing of computing resources rather than working on local servers or personal computing devices to manage enterprise applications.
Cloud computing is similar to grid computing; unused processing cycles of all computers present on a single network are utilized to give intensive IT solutions for a stand-alone computer.
The term ‘cloud’ refers to the ‘Internet’ ; so cloud-computing is normally known as computing based on the Internet; servers, data storage, and applications are available on an organization’s computer and other mobile devices with the help of Internet.
The right mix of cloud
A pertinent question asked by the enterprises is ‘how can you determine the right mix of cloud computing services for your enterprise.’ Several factors contribute to make a sound business decision.
- Budget: The company budget is a crucial factor to consider when you are looking for implementing cloud services. Even, the total cost of ownership is also considered. Not only the upfront cost, but you also have to consider future costs like training, maintenance etc.
- Personnel: Technology is continually evolving; hence your team must include expert and experienced professionals who will configure, operate, maintain, and maximize the value of cloud services. Cloud vs. on-premise enterprise solutions is a major decision. Hence you must consider the personnel required for the task. Resources without the proper skillsets will create problems in deployment of cloud services. In addition, it will result in subsequent problems of operating and maintaining the cloud system.
- Physical resources: Storage space is important for any software or hardware; you must have sufficient rack space and other utilities like cooling systems, electricity to successfully implement cloud systems. These resources bring a lot of constraints; hence being aware of these constraints will be beneficial to arrive at a sound business decision.
Hybrid Cloud is critical for digital transformation
Enterprises face a major challenge of understanding how they can achieve maximum effectiveness and simultaneously expand their cloud-based services.
Cloud helps in developing an agile business and leads innovation at low costs; your enterprise must map the entire application portfolio over cloud and assess its opportunities and dependencies – especially in the context of a hybrid cloud. A business can transfer existing applications over cloud, create new apps and rebuild the remaining applications.
Rebuilding applications is gaining importance nowadays. Several enterprises have considered rebuilding their customer-facing applications in order to scale up their business operations. Hybrid clouds are popular in retail, banking, and travel industry for example.
Though, hybrid clouds raise a critical question. Offering new services to customers and creating value through digital transformation will urge you to adopt cloud services, but can you completely ignore the traditional business applications? You must adopt a bi-modal IT approach that blends traditional and cloud applications for your enterprise.
Integrating these applications continually will help you stay ahead. Gradually, you can shift the traditional applications to the cloud platform to increase business visibility and scalability. Your IT team must have skilled experts to manage these parallel forces. It is a revolution which has started and will gradually affect the IT solutions on the global front.