Cloud: how to extricate ambient constraints?
Cloud Computing: Despite strong adhesion to the cloud hybrid deployments are progressing slowly, particularly in France. This is explained by complexity of the existing environment, difficult to migrate. Proceed step by step, drawing on hosters allowing very flexible transition can be a way.
The Cloud projects eventually materialize last two years in France. But many companies have retained heterogeneous IT platforms, leading to a perception of complexity in terms of future hybrid infrastructure.
According to a study SunguardAvailability Services (07/2015), the prospect of these hybrid architectures is a strategic direction for 60% of IT managers in France (against 68% in Europe). But for almost all of the respondents in Europe (96%), hybrid infrastructures appear increasingly complex. 39% of them (28% for French), current infrastructure is considered “very” or “extremely” complex, and 60% ” more complex than before .” 66% in France see hybridization as a first step to the cloud (46% in Europe). In Europe, 25% of organizations (35% in France) are struggling to integrate public cloud environments in their infrastructure and 24% regarding the private cloud (31% in France).
It three years ago, another study, signed the Japanese NTT Communications already revealed that 81% of European CIOs felt that the brake at the advent of cloud came from the inherent complexity of their IT architectures and maintenance service platforms traditional (28% of the application portfolio at the time).
In this context, all migrate to the cloud overnight is not necessarily the best approach.
Large organizations, failing to make a great household or opt radically for hyper-converged solutions, beginning by making more consistent their tools of management and supervision of their heterogeneous infrastructure. To continue deploying Cloud solutions, it is more desirable to have a coherent overview of server performance, virtualization platforms and network. Monitoring alerts will only ease.
Consistency is difficult to obtain because the services are based both on the resources in the data center and out. Hence the importance of an effective relationship with its service providers (hosters, cloud providers ) which is never easy with industry giants. The data can come from different sources, different tools. Now it must achieve a global vision through the collection of operating data often very scattered, which requires often tedious correlations if they are not automated.
These data are essential because they allow to understand the complex interdependencies between physical servers and VMs, and between applications ‘provisioning’ storage and network resources, etc.
Start with a PRA: why not?
In small or medium-sized organizations, it is easier to run a POC ( proof of concept ) as soon as a hosting partner has been selected. Some recommend starting a PRA solution (disaster recovery plan), which validates replications in real time. This requires testing the interconnection procedures, critical step for phase, later, Hybrid Cloud.
At startup, the system can remain in the data center of the company. The provider manages external mode managed services . The security is not optimal because in the event of disaster, the data remains in one place.
The next phase will consist precisely in a first step towards outsourcing, with asynchronous replication of certain critical data at the host. The principle of a PRA can be put in place, with the discovery, through certain services, the benefits of a cloud infrastructure.
The application can be Managed Service – updates and maintenance are provided by the service provider. High availability is contractually defined SLAs.
To the Private Cloud
The next step may be to expand the number of applications and critical data volume assigned to the hosting provider. Interconnection is validated and tested with data residing in the data center of the company.
Then it is possible to consider a private cloud scenario, allowing for example a permanent and remote access to a business application. Resources are made available ‘self-service’. Others, more, are available on demand, billing according to consumption. This allows to keep the performance with the progressive increase. The host has no access to data on the private Cloud.
On this basis, access to the service can then be expanded internationally since the host has contacts or rely on partners such as Microsoft (Azure) or Amazon or other cloud providers.