IaaS (Infrastructure as a Service)
The IaaS taxonomy is geared towards customers that require the ability to stand up virtual machines in the cloud. This can be an attractive offering when there is no desire to modify code and the end goal of the transition to the cloud is simply to move an existing legacy application off site with as little work as possible. Although this IaaS has the lowest bar for entry it typically does not exhibit the maximum value proposition of the cloud.
Common Business Drivers:
- Improving IT agility
- Moving capital expenditures to operating expenditures
- Reducing IT spend to deliver business aligned solutions
- Increasing business agility through improved speed of provisioning new environments
- Providing capacity that may not be available in the on-premises counterpart
- Extend software applications and licensing without on-premises hardware replacement
Cloud model adoption as per typical user numbers increase
Each future project/ procurement can be classified by one of five types, the readily available Mode 2 technology in the public cloud is shown for each project type.
- Enterprise Applications
- Development & Research
- Development & Operations
- Big Data
- Internet of Things
Data classification, cost, performance, availability and recover ability are factors that will be decisive in choosing the most appropriate architecture for each project.
Outside of the pricing tiers applicable to negotiablent discounts, future projects can align with reserved instances of compute within these categories for big cost reductions. Cloud Service Provider discounts and “pay in Advance” options could be applied. Containerisation is another option to reduce cost, maintaining performance with mobility. We can extend the lifecycle of existing software and licensing without additional hardware costs.
Data port for connection to Cloud Service Providers can be metered as fixed or variable costs. Data Ingress charges are included as built charges across both fixed and variable cost models.