Whether hosting business-critical applications, large databases or high-traffic websites, the infrastructure behind those workloads plays an important role in performance, reliability and security. Many organisations need more isolation and control than a shared environment can offer, and private cloud is designed to provide it.
By allocating dedicated servers, storage and networking to a single customer, private cloud gives organisations full use of their resources, together with cloud capabilities such as virtualisation, flexible resource allocation and centralised management. This delivers predictable performance for demanding workloads and greater control over how the environment is configured.
What is private cloud?
A private cloud is a cloud environment in which the servers, storage and networking are allocated exclusively to a single organisation for hosting its workloads.
Because the hardware is dedicated, no resources are shared with other customers. This single-tenant design means the environment can be configured around the specific requirements of the applications it supports, and the organisation keeps direct control over how resources are allocated and managed.
Private cloud can host a wide range of workloads, including websites, business applications, databases and development environments, and it can be delivered from a provider’s datacentre as a managed service.
How does private cloud work?
A private cloud uses virtualisation software to turn dedicated physical servers, storage and networking into a flexible pool of resources. A hypervisor divides the hardware into virtual machines (VMs), and a management layer allows resources to be allocated, adjusted and monitored as requirements change. Platforms such as Red Hat OpenShift can also run containers alongside VMs.
Because the hardware is reserved for one customer, workloads do not compete with those of other organisations for processing power, memory or storage performance. Capacity can be scaled on demand, and the platform is designed around the customer’s workloads from the outset.
In a managed private cloud, the provider designs, builds and maintains the platform, including monitoring, maintenance and support. Our private cloud is powered by Red Hat OpenShift and Kernel-based Virtual Machine (KVM) technology, with support from IBM, and runs on physically isolated infrastructure.
What are the benefits of private cloud?
Private cloud combines the flexibility of cloud with the advantages of dedicated infrastructure.
Consistent performance
Because hardware is not shared with other users, private cloud delivers fast speeds and low latency for demanding workloads, databases and critical applications, even during periods of heavy demand.
Greater control
Private cloud allows environments to be designed around application requirements, including how resources are allocated, which software runs on the platform and how it is configured. For organisations with specialist software, licensing requirements or custom configurations, this level of control is particularly valuable.
Security isolation and compliance
Because private cloud is a single-tenant environment, workloads do not share physical infrastructure with other customers. Although security still depends on the correct configuration, patching, monitoring and access controls, this provides a strong foundation for organisations handling sensitive information or operating under strict compliance requirements.
Where data is hosted and which laws apply to it are separate questions, so it helps to consider both. Our UK sovereign private cloud is designed for regulated environments, keeping data in the UK under UK jurisdiction.
Predictable costs
Dedicated resources make capacity planning more straightforward, and fixed monthly billing keeps costs predictable. An optimised environment also helps prevent costs from escalating as workloads grow.
What workloads are best suited to private cloud?
Private cloud is often chosen when applications need consistent performance, strong isolation or greater operational control.
Common examples include:
- Business-critical applications and ERP systems
- Microsoft SQL Server, MySQL and PostgreSQL databases
- High-traffic websites and eCommerce platforms
- Virtual machine and Kubernetes container workloads
- Applications that process sensitive or regulated data
- Migrations from legacy on-premise infrastructure or other virtualisation platforms
The right fit depends on what the workload needs, whatever the size of the organisation. Some organisations run a single critical application on private cloud, while others host several workloads on one platform.
What should you consider before choosing private cloud?
Choosing private cloud involves more than selecting hardware. The wider platform and operating model should also be considered.
Questions worth asking include:
- How much compute, memory and storage will your workloads require over the next three to five years?
- Where should the platform be hosted to give your users low latency and meet any data requirements?
- Will you need high availability, with replication to a second location?
- What backup and disaster recovery requirements exist?
- Who will manage updates, security patching and monitoring?
- Does your provider offer proactive monitoring and rapid hardware replacement if components fail?
Considering these requirements early helps ensure the platform can support both current workloads and future growth.
Managed or self-managed private cloud?
Private cloud can be run in-house or provided as a managed service.
With a self-managed private cloud, the organisation is responsible for building, maintaining and securing the platform, including the virtualisation software, hardware, patching and monitoring. This suits businesses with experienced infrastructure teams and sufficient internal resource.
A managed private cloud includes ongoing operational support from the provider, covering design, setup, monitoring, maintenance and technical support. For many organisations, this reduces operational overhead and provides access to specialist expertise when requirements change. With our managed private cloud, customers have direct access to a dedicated technical support engineer 24/7/365, with no tiered support, and our team acts as an extension of their business.
The appropriate model depends on the level of internal technical resource available and how much responsibility the organisation wants to retain for day-to-day infrastructure management.
The next steps
Private cloud continues to play an important role in modern IT infrastructure. For workloads that need dedicated resources, strong isolation and greater control, it provides the flexibility of cloud on infrastructure used by one organisation.
Understanding what private cloud is represents the first step. Choosing the right architecture, location and management model requires a broader assessment of your applications, compliance requirements and growth plans.
If you are evaluating private cloud, speaking with an experienced managed hosting provider can help determine whether it is the right fit for your workloads and how it should be designed to support your long-term objectives. Speak to one of our Cloud Consultants for an initial conversation.
