Server hosting is an IT service, typically offered by a cloud service provider, that provides remote access to off-premises virtual or physical servers and associated resources for a monthly subscription or usage-based price. Server hosting lets IT teams provision and start using application and data servers without the up-front cost, delays, and labor of purchasing, setting up, managing, and maintaining physical server hardware themselves, on-site.
Today, organizations of all sizes use server hosting for all kinds of workloads—everything from development and testing, to application delivery, to backup and disaster recovery. Compared to purchasing and managing servers on site, server hosting offers the following:
While smaller variations exist, server hosting offerings fall into three general categories:
In shared hosting—the most basic and cost-effective form of server hosting—the resources of one physical server are virtualized and made available to multiple tenants (users or company accounts) in equal proportions. Shared hosting is ideal for basic, personal websites and web apps that have little traffic, few technical requirements, and limited performance or security requirements. But, because all tenants are allocated a finite amount of an individual server’s capacity, providers do not allow websites to scale beyond a certain limit. And shared hosting is the server hosting model most susceptible to “noisy neighbors”—tenants whose applications unexpectedly consume more than their share of resources, causing performance problems for other tenants. For more information about shared hosting, see “What is Cloud Hosting?” and "Web Hosting: An Introduction."
VPS (virtual private server) hosting offers a kind of next-level multi-tenant hosting—each tenant shares some, but not all, of the resources of a single hardware server and gets a little more control over the hosting environment. Each VPS runs its own operating system (OS) and applications, and it reserves its own portion of the machine's resources (memory, compute, etc.).
VPS provides more control over system specifications, guest operating systems, and the overall software stack. It’s also the most easily and affordably scalable form of server hosting, making it an excellent choice for eCommerce systems, email servers, CRM, and other applications that typically bear moderate or spiky traffic.
Dedicated server hosting is single-tenant hosting—the server has exclusive access ALL the resources of a single hardware server. Compared to the other forms of hosting listed above, dedicated hosting provides the greatest level of isolation from other servers and customers hosted by the cloud or IT service provider. You can choose among three dedicated hosting models:
Selecting the best server hosting solution for your organization means weighing the following factors:
Build HPC workloads on IBM Cloud® VPC infrastructure, using Intel Xeon processors and IBM Spectrum® software.
Get maximum performance and secure single tenancy from a dedicated server with root-level access to all server resources for easier workload customization.
Learn what dedicated and bare metal servers are, how they compare to virtual servers, and what use cases they best support.
Learn about how cloud hosting makes applications and websites accessible using cloud resources and a network of connected virtual and physical cloud servers.
Learn what a VPS is and how it differs from other forms of hosting common in cloud computing.
IBM Cloud® provides high-performance computing (HPC) capabilities with seamless integrations of your bare metal servers and virtualized environments. IBM Cloud® also lets enterprises configure all aspects of their bare metal servers, including CPUs, RAM, hard drives, GPUs, and more, while making it possible to completely provision a server in less than 30 minutes.