Cloud vs. managed hosting
IBM Power Virtual Server vs. Managed IBM Power Hosting
Two provider-hosted paths for IBM i, AIX, and Linux on Power — a self-service model versus a fully managed hosting relationship — compared on control, responsibility, and pricing.
Independent comparisons — we don't resell either model.
What's the difference between IBM Power Virtual Server and managed IBM Power hosting?
IBM Power Virtual Server (PowerVS) is IBM's infrastructure-as-a-service (IaaS) offering — you provision and manage the operating system and applications yourself on IBM-owned infrastructure. Managed IBM Power hosting adds a provider who operates some or all of that stack for you under a service agreement. Choose PowerVS for self-service control and usage-based pricing; choose managed hosting when you want day-to-day operations handled for you.
Common triggers
What usually forces this decision
Teams typically compare these two paths when:
- PowerVS capacity is self-managed today, but administration is stretching internal staff thin.
- A colocation or legacy hosting contract is expiring and needs a replacement model.
- Leadership wants a single accountable provider for uptime and support, not a shared responsibility model.
Start here
Who this comparison is for
The right model depends on how much operational responsibility you want to keep in-house.
IT Directors evaluating self-service vs. managed
Deciding how much day-to-day operational responsibility to keep in-house versus hand to a provider.
Teams without deep Power administration staff
Assessing whether a managed model closes a staffing or skills gap.
Procurement comparing contract flexibility
Weighing consumption-based pricing against fixed managed-services contracts.
Side-by-side view
How the two models compare
| Option | Control level | Management responsibility | Pricing model | Contract flexibility | Regions/availability | Typical use cases |
|---|---|---|---|---|---|---|
| IBM Power Virtual Server | High — customer manages the operating system, middleware, and applications | IBM manages underlying infrastructure; customer manages everything above the hypervisor | Consumption- or subscription-based; pay for provisioned capacity | Generally flexible; capacity can scale up or down within IBM Cloud terms | Available in IBM Cloud's published Power Virtual Server regions | IaaS control, development/test, disaster recovery targets, lift-and-shift migrations |
| Managed IBM Power hosting | Lower — provider manages some or all of the OS and operational tasks | Provider typically manages infrastructure, OS patching, monitoring, and support | Typically a fixed or tiered monthly service fee bundling infrastructure and management | Often a fixed-term managed-services contract; terms vary by provider | Depends on the individual provider's data center footprint | Outsourced operations, limited in-house Power staff, production workloads needing full-service support |
Where each option works best
Best-fit and caution scenarios
Best fit
Best fit for IBM Power Virtual Server
Teams with existing Power and IBM i administration skills who want IaaS flexibility and usage-based pricing.
Use caution
Use caution with Power Virtual Server
Organizations without in-house administration capacity — PowerVS still requires you to manage the operating system and application layers yourself.
Best fit
Best fit for managed IBM Power hosting
Organizations that want a single provider accountable for uptime, patching, and support under a defined service-level agreement (SLA).
Use caution
Use caution with managed hosting
Teams that want granular self-service control or need to avoid longer-term managed-services contract commitments.
Cost factors
What drives the pricing comparison
Provisioned vs. managed capacity
PowerVS bills for provisioned compute and storage; managed hosting typically bundles infrastructure and labor into one fee.
Administration hours
Self-managed PowerVS shifts admin time to your team; managed hosting shifts it to the provider's staff.
Support tier and response times
Premium support tiers and faster response SLAs typically carry additional cost in either model.
Contract term length
Longer commitment terms can lower unit pricing but reduce flexibility to change course.
Before you decide
Questions to work through first
Confirm which operational tasks — patching, monitoring, backup, incident response — your team wants to keep versus hand off, and get that responsibility split written into any managed-services agreement.
Compare pricing on a like-for-like basis. A managed hosting quote that bundles support and monitoring may look higher than a raw PowerVS capacity quote until you add your own administration cost back in.
Ask both models about contract exit terms and data portability, since switching between a self-managed and fully managed model later involves migration effort of its own.
PowerVS vs. managed hosting: frequently asked questions
Is IBM Power Virtual Server the same as managed IBM Power hosting?
No. PowerVS is IBM's own infrastructure-as-a-service offering — you provision and manage the operating system and applications. Managed IBM Power hosting is typically delivered by a third-party provider who also operates the OS and ongoing administration on your behalf, sometimes running on PowerVS itself or on the provider's own Power infrastructure.
Can a managed hosting provider run on top of IBM Power Virtual Server?
Yes — some managed service providers deliver their management layer on top of PowerVS capacity rather than their own data center hardware. Confirm this with any provider you evaluate, since it affects contract structure and portability.
Which option costs less?
It depends on how much administration time and expertise you already have in-house. PowerVS can look less expensive on paper but requires your team to handle OS-level operations; managed hosting bundles that labor into the price. Compare total cost including your own staff time, not just the infrastructure quote.
How difficult is it to switch between the two models later?
Moving from self-managed PowerVS to a managed provider — or the reverse — is usually possible but involves its own migration and cutover planning. Treat it as a smaller version of the same due diligence used for the original decision.
Do both options support IBM i and AIX equally?
Both models are generally built around IBM Power hardware and can support IBM i, AIX, and Linux partitions, but exact operating system versions, regions, and support terms vary by provider and should be confirmed directly.
Sources
- IBM Cloud Power Virtual Server documentation (ibm.com)
- IBM Power Systems support and lifecycle documentation (ibm.com)
- Individual managed hosting provider service-level agreements (verify directly with each provider)
Actual suitability depends on your workload, software licensing terms, application support requirements, geography and data residency, target architecture, and each provider’s contract terms.
Not Sure Which Hosting Model Fits?
Compare your current operating model against both paths and get a directional recommendation before you sign a new contract.