The Cloud is everywhere. It is intended to replace the entire IT of a business, but is it essential to replace everything? A hybrid Cloud infrastructure is often the most logical solution.
Moving from an internal client-server mode to a 100% Cloud architecture is ideal in most cases, for multiple reasons:
- Access to the Cloud is through ADSL or SDSL; an inevitably reduced line compared to Ethernet, but which offers a more optimal output for various uses
- Software operating on internal servers is not available in SaaS (Software as a Service) mode
- Versions of operating systems and software on some servers are very recent
Is it necessary to adopt a hybrid Cloud infrastructure?
If moving to a hybrid Cloud infrastructure, you must have good reason. The existing hardware and software architecture must be taken into account; the flow, as well as the pertinence of the use of existing servers and software must be analysed in terms of maintenance and fixed operating costs. And lastly, you must re-evaluate the whole and integrate your new requirements.
What might often justify staying with an internal client-server structure is the problem of the size of the files, and the necessary network output in order to work under good conditions. This is the case in most professions using CAD, GIS and video software; hence design, architecture, and audio-visual businesses are the first to be affected.
In these cases, a hybrid architecture might involve moving services related to marketing, accounting, finance, CRM, and HR to a Cloud (in SaaS, PaaS (Platform as a Service) or IaaS (Infrastructure as a Service) mode) in order to analyse the costs and the availability of services. In contrast, R&D services use the existing architecture, and even change it by creating copies of the data at Rest in PaaS mode. Data updating is carried out each night in order to guarantee a backup in the case that the actual infrastructure becomes defective or is under maintenance.
So, the server room is simplified, the network remains the identical and Cloud services are simply routed externally via secure feeds. What must be tested at the end are the remaining internal architecture and particularly the performance of the router-Internet connection.