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Multicloud: Marrying private clouds and public clouds

Multicloud is one of the hottest buzzwords today, hiding a major trend that combines private and public clouds to optimise information systems, and accelerate production and the digital transformation.

Multicloud: A response to the increasing complexity of IT systems

The evolution of the company, its digital transformation, the multiplication of products and services, client proximity, and the priority that must be given to security, all argue for computing with a solid base that takes advantage of an open infrastructure able to respond rapidly to user and client expectations. Multicloud meets these expectations, optimising existing systems to offer a solid foundation, and the private cloud backed by public cloud resources for speed and change, while continuing to help cut costs.

At their most recent ITXPO Symposium, Gartner analysts put the bimodal approach of two-tiered computing on the back burner, to promote a new vision of change instead. The bimodal concept is composed of traditional computing, with its ‘on premise’ or hosted and managed infrastructure supporting a private cloud; and next-generation IT that is fast, based on the public cloud, and supports developments and new applications. Gartner’s new vision focusses on change to meet the objectives of availability and speed, and to address the obsolescence of existing computer technologies that risk causing companies to fall farther and farther behind their competitors engaged in the digital transformation.

How to get on board with change?

This approach has one merit: it relies on efficiency. This is sure to make IT divisions happy, as they are invited to consider performance, openness, and commercial objectives. This requires a solid foundation with solid computing infrastructures, and the adoption of a strategy of growth and speed based on the benefits of the cloud. And it is reassuring, since ‘legacy’ elements have a place and will continue to support the private cloud, whose infrastructure must be optimised. At the same time, the public cloud has to be open to new resource consumption strategies. PaaS (Platform-as-a-Service) and IaaS (Infrastructure-as-a-Service) offer development and production platforms in just a few clicks. SaaS (Software-as-a-Service) lets users enjoy external applications anytime and anywhere and complement existing services, or offer BUs solutions tailored to their needs. This is an interesting dual approach, consolidating existing resources, some of which are certainly still in the amortisation phase, while providing access to the cloud’s resources.

The IT department takes control once more with the multicloud

The multicloud relies on virtualising infrastructure resources to offer a unified and centralised vision, a marriage of private and public clouds that meets new expectations for change and productivity. It must also be considered a security tool supporting backups and the business continuity plan. But especially, by recalling the importance of the ‘legacy’, centralising the administration of hybrid infrastructures and adopting unique metrics with the option of re-invoicing, the multicloud puts the IT division back in the driver’s seat, with supervised ‘control’ over the BU’s practices. Enough at least to intelligently support change and guarantee long-awaited ROI.

Auteur : Yves Grandmontagne, Journaliste

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