Public vs. Private Cloud: A Deep Dive – Part 1

This is Part 1 in a two-part series about Public versus Private Cloud Services.

Welcome to the first installment of our deep dive into the dynamic world of Public vs. Private Cloud computing. As businesses increasingly embrace the Cloud to drive innovation and efficiency, the decision between Public and Private Cloud solutions becomes paramount. In this series, we’ll unravel the complexities of these options, providing insights and considerations to empower CTOs, CIOs, and decision-makers in navigating this critical terrain. Join us as we explore the intricacies, benefits, and challenges of Public Cloud solutions, shedding light on key questions and considerations that can shape your organization’s digital future.

What constitutes a Public Cloud versus a Private Cloud solution?

Cloud Service Providers construct infrastructure for Cloud Computing, which is then offered to customers as various service offerings such as Storage as a Service (SaaS), Application as a Service (AaaS), Infrastructure as a Service (IaaS), or Platform as a Service (PaaS). These services are provided on a monthly subscription basis, unlike the traditional capital expense model where purchasing dedicated hardware or software is required, which depreciates over time. Most cloud services operate on an operational expense model, significantly reducing costs by utilizing shared infrastructure along with a “pay-as-you-go” model.

Initially, the term “Cloud” was merely a colloquialism or marketing buzzword for the Internet. However, its scope has since broadened to encompass the entire computer infrastructure, including applications, systems, and storage, maintained offsite or away from the company’s data center.

The Public Cloud, therefore, refers to the provision of applications, networks, and infrastructure as a service, available for public use offsite, beyond the confines of a customer’s environment. Typically, providers of Public Cloud services include web or application services. Industry leaders such as Amazon, Microsoft, and Google own public infrastructures and offer Cloud Services either directly or through resellers and partners. This shared infrastructure enables customers to utilize services within a dedicated environment or domain without dedicated hardware or infrastructure. These services are shared among entities, virtual machines, or instances created within the environment.

Key Considerations for CTOs and CIOs Moving to Public Cloud

When contemplating a transition to a Public Cloud infrastructure, what key questions should a CTO or CIO consider?

  • Does the service offer comprehensive management, including access to a help desk or network operation center in the event of issues?
  • Is the Cloud self-healing, capable of resolving issues autonomously with applications, systems, networks, or storage?
  • Can the server dynamically scale to accommodate changing data volumes or processing requirements (scalability)?
  • Does the Cloud Service Provider have a robust Disaster Recovery plan in place to restore applications and data in the event of an outage?
  • Is there redundancy through reciprocal or replicated infrastructure on secondary or tertiary sites, considering the cost implications?
  • Is regular maintenance performed on the operating systems and infrastructure network, including timely notifications of changes?
  • Does the Cloud provider offer solutions or architecture support to assist customers in scaling and managing resources effectively within the Cloud?

While the Public Cloud can offer numerous benefits, it’s crucial to address all considerations thoroughly and ensure that the service offerings are mature and stable enough to safeguard your computer infrastructure. Stay tuned for our next blog, where we’ll delve into additional considerations for transitioning to the Public Cloud.