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The Difference Between Public and Private Cloud

What is the difference between public and private cloud?

Choosing the right cloud solution for your business is a vital part of a creating a strong hybrid IT strategy. Providing a balance across competing agendas is critical and aligning the right cloud infrastructure for the right use case can sometimes be a challenge.

Private Cloud

A private cloud solution will host your data on a dedicated server with access and management limited to your business only. The network is protected by a secure firewall and offers high performance due to its single usage.

Customers can customize the control and maintenance of their service. This means you can tailor your infrastructure to meet your business needs and to suit any security or infrastructure requirements you have.

Public Cloud

A public cloud solution stores your information off-site on a shared server managed and maintained by the service provider.

Support and updates are handled by the Cloud Service Provider and services are paid for on a subscription basis, reducing the need to invest large amounts of capital and freeing up your in-house IT resources.

This gives your business flexibility and allows for quick access to applications and data when testing or as part of a recovery plan. However, it does mean that you have limited control around when and what updates are performed on the system.


Differences

Although both public and private cloud offer hosting solutions, the way they operate differs when it comes to security, performance and control.

Companies who require a high level of performance, control and security should opt for a private cloud solution, whereas those who are perhaps smaller companies could consider a public cloud.

 Private CloudPublic Cloud

Infrastructure

Single-Tenant: Dedicated hardware and network for your business managed by an in-house technical team.

Multi-Tenant: Shared network hosted off site and managed by your service provider.

Business requirement

High performance, security, and customization and control options.

Affordable solutions that provide room for growth.

Best use

Protect your most sensitive data and applications

Disaster recovery and application testing for smaller, public facing companies.

Scalability

Can be managed in house. Extreme performance – fine-grained control for both storage and compute.

Depends on the Service Level Agreement but usually easy via a self-managed tool the customer will use.

Support and maintenance

Your technical administrators.

Cloud Service Provider’s technical team.

Cost

Large upfront cost to implement the hardware, software and staff resources. Maintenance and growth must also be built into ongoing costs. CapEx.

Affordable option offering a pay as you go service fee.
OpEx – Pay as you go, scale up, scale down as needed, charged by the minute.

Security

Isolated network environment. Enhanced security to meet data protection legislation.

Basic security compliance.
Some may offer bolt-on security options.

Performance

High performance from dedicated server.

Competing users can reduce performance levels.

Whichever cloud solution you choose, it is important that you properly research your options and ensure you pick the best cloud solution to meet your induvial workload needs. Carefully consider the differences and remember that a hybrid solution can deliver the benefits of both. 

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