Server Virtualisation and Consolidation


What is Server Virtualisation ?

In a nutshell

Server Virtualisation software is an abstraction layer between operating systems, applications and actual physical platforms. The operating system sees a consistent, uniform set of hardware no matter what components are in the physical machine.

When encapsulated in virtual machines, full systems (applications, OS, BIOS and virtual hardware) are easily transportable between different physical machines, because the Virtualisation layer isolates them from the change of platform. Server

Server Virtualisation is a form of partitioning because multiple virtual machines can be run simultaneously on the same physical platform, unaware and hence essentially unaffected by the presence of other virtual machines.

Development and Test optimization

CIO’s are under constant pressure to deliver high-quality enterprise applications more quickly at a lower cost. It has been never easy to deliver quality software on time and on the budget. The task is further complicated by modern multi-tier architectures and multiple versions of operating systems, browsers, and firewalls. Hence, using a Virtualisation platform for development and testing results in immediate improvement in time to market, costs, and quality.

Key benefits of Virtualisation
Virtualisation and Server Consolidation

Virtualisation enables enterprises to:

  • Consolidate servers and desktops used in production and development environments
  • Reduce costs by lowering the number of phyiscal servers while increasing hardware utilisation
  • Support complex mult-tier applications on a single physical platform.
Improved Storage Access

The SAN becomes a pooled resource that hosts operating systems (encapsulated) and data providing thus, greatly improve realiability and avaliability of services. Therefore, the costs are reduced because servers effectively share fewer ports and cards to access pooled resources.

Business Continuity & DR

Each year hundreds of data centres worldwide will experience significant unplanned service interruptions. Using virtual infrastructure, IT managers can improve all aspects of business continuity & DR by realising:

  • Faster, more flexible, and more reliable disaster recovery at a lower cost achieved through the removal of dependencies of operating systems on specific server hardware
  • Copy production environments into virtual machines for testing and share complete environments among different teams
  • Simplified and repeatable processes for implementing business continuity solutions enabled by hardware independence.


How can Application Delivery Controllers benefit my business

Lower total cost of ownership

ADC delivers up to 80 percent savings in training, power, space and overall costs. Therefore, it delivers more applications to more users while reducing server costs by up to 60 percent. ADC offloads intensive and repetitive tasks off servers,thus holds dynamic content generated by servers in in-memory cache and shields servers from unwanted traffic. This reduces the number of servers and network devices, and allows you to deploy new Web 2.0 applications without extensive infrastructure changes.

Improved operational efficiency

As enterprises grow, IT needs to rapidly increase bandwidth and computing capacity – often in the form of increased Internet capacity, IT services support and server resources. The resulting expenditures are costly in terms of capital and people needed to operate and manage delivery infrastructures.

Intelligent Load Balancing and Content Switching

ADC’s provides comprehensive layer 4-7 traffic management. Deployed in front of application servers, they deliver fine-grained load balancing of client requests. Thus, it ensures optimal distribution of traffic. Intelligent traffic management and extensive server health checks provide greater business continuity and thus, eliminate the application server as a single point of failure. It is easy to define traffic management policies based on layer 4 traffic information (protocol and port number), as well as application-layer information such as URLs, application data type or cookie.

Guard against Denial of Service Attacks

Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks are assaults on a network that flood it with so many additional requests that regular traffic is either slowed or completely interrupted ADC solutions provide intelligent Layer 4 / Layer 7 DoS and surge protection to ensure your web services are robust and available

Make Prestige IT your first choice for Virtualisation

Prestige IT has implemented load balancing and application delivery controllers for a wide range of company sizes and industry types . We are experienced design consultants and technical staff who are trained in the implementation and support.

Server Virtualisation

Our experts are vendor agnostic so we can provide objective non-biased solutions. We assure you a custom solution based on the optimum configuration of hardware, software and specialist services. ADC requires expertise across the entire life of the project if you are to gain the full benefit. Prestige IT provides full end to end integration services from consulting, planning, design, project management builds, implementation.

The right solution for a wide range of problems

Whether you are looking for an easier way to deliver your web applications, reduce costs, improve Disaster Recovery, better utilize and/or consolidate your server infrastructure, there is an ADC solution for your business.