Today, datacenters face major challenges around poor use of existing resources.
The foundation stands in building around the applications. These need to work with high performance, so every day is added and replaced hardware to meet the new demands that these applications require.
As a result, datacenters have underutilized resources. Reports of consulting firms indicate that use of storage resources is about 25% of the total capacity, 30% on servers, and 30% on networking.
From this fact, datacenters have their expectations clearly focused on the field of virtualization.
Today virtualization technology is used to create virtual servers, all within a single real server. But virtualization technology will progress on the concept of building applications like pieces of a big puzzle.
In the future, a datacenter will consist of a real infrastructure for the sole purpose of providing resources to existing pools of virtual infrastructure.
A virtual server will be composed of virtual resources: virtual memory, virtual processor, virtual storage.
This virtualization technology will be responsible for managing the real origin of these virtual resources, including modifying them according to the required demand.
Servers that normally require 1 processor to operate, could work in high-demand periods (eg liquidation) by increasing its processing capacity by requiring a greater number of processors – memory – storage, which will be allocated on demand for the requested period or while exists this need.
This is how it will be implemented service-oriented architectures.
For the virtual server, resources will be allocated in a transparent manner, regardless of whether they are physically on the same server, on different servers in the same datacenter, in the same city or same planet.
This generation of virtual infrastructure extends beyond the field of servers, to the field of networking. This combination of services on virtual servers require the presence of virtual switches, virtual routers, virtual firewalls, virtual machines to control content, etc.. For example, the evolution of Web 2.0 technologies requires technical content access control for purposes of regulating the usage policy and security prevention.
This breakthrough in virtual infrastructure will require a capacity of managing the entire infrastructure, because the migration of a virtual server to a new physical hardware requires not only the corresponding configuration on the virtual servers but also the configuration of the associated virtual communications equipment.
For this reason, data centers will increase its reliance on software to manage virtual infrastructures, both in activities associated with the management of resource pools and resource allocation, as well as accounting activities.
Furthermore, all of these facilities will depend on the actual communication of real resources. This is also where the field of networking is clearly involved. In a service-oriented architecture, the networking field will be the backplane infrastructure, so their level of availability should be 100%: networking incidents will impact over the communication of the various internal resources of a virtual server.
The company is not ignored in this scenario. This new scheme of virtualization will integrate the enterprise to the datacenter. The datacenter is also presented as a primary service provider: it will provide processor, memory, storage. The infrastructure in the enterprise will use this new service offering hosted in the datacenter to strengthen its local infrastructure.
This will require an advance over metro networking technologies to enable the enterprise access the data center under the conditions of availability and capacity required for infrastructure.
Thus, building hardware infrastructure will no longer evolve around the application’s performance, allowing an increase in the use of existing resources to more than 90%.