IT Consolidation & Virtualization

The rapid growth, increased work loads and unpredictable needs in information technology departments has lead to IT managers to consider virtualization technology. Virtualization is the moving of systems from a physical environment to a logical structure. By making it possible for the X86 computers of today to run a large number of operating systems and applications, virtualization makes your infrastructure more simple and more effective.

The speed, performance and usability of applications increases. Operations are automated, which leads to easier application in the IT field, resulting in less costly ownership and administration. Virtualization technologies become ideal solutions in terms of minimizing the space, power, maintenance, administration and system cooling expenses for servers in system rooms.

HCTL experts, lower costs by using consolidation and virtualization capacity planning tools, increasing the efficiency of resources by facilitating transition to new generation office server environments and automating changing business needs.

Server Virtualization

Virtual Server is a technology that allows for more than one operating system to be housed independently and isolated from each other at maximum performance on One or More than one physical server. Each created Virtual server works like an independent and dedicated server. It has its own disk space, IP address, memory, applications and configuration files. In terms of systems operation they are in no way different from a normal system.

For your Server Virtualization Projects we offer the solutions of companies accepted in the sector such as Microsoft Hyper-V, VMware and Citrix.

Desktop Virtualization / Virtual Desktop Infrastructure (VDI)

Has the same logic as virtualization system. It is the running of a desktop system on a virtual platform instead of a server. Due to desktop systems being more than servers, it is not an effective method of each virtual PC being manually created and administrated. In this place applications which automate these duties are preferred.

For ease of administration, usually one or several basic images are created on the user computer and these images are defined to the virtual desktop system. Virtual computers run systems based on these images without taking up too much space on the disk. Citrix uses boot from a single image method, whereas VMware uses a method mapping the same image and saving only the changes. When a general change in the system is needed (like the changing or upgrading of an application), with an update on the main image all connected systems will be updated.

Application Virtualization

The publishing method is basically the application being run on a separate server and only the interface of the application being shown on the user screen. Thus the processor and memory resources of the user viewing the application is not used, and it is independent of the user computer operating system. The application runs with the performance of the server it is running on. The type of client using the application (thin client, desktop PCs, etc ..) has no effect on performance. Publishing method is widely available with Microsoft Terminal Services and Citrix XenApp applications.

In the streaming method an application is turned into a package and when the user runs the application, the user computer runs it on a virtual operating system called sandbox instead of its own operating system. No registry entries or configuration is written on the user system, the standard directories of the application are not created on the user computer. This architecture allows for applications which cannot be installed on a computer at the same time (Office 2007 and Office 2010) to work without problems. In the streaming method applications use the client computer processor and memory, and for this reason are not suitable to the use of thin clients. The performance of the applications will differ according to the hardware of the computers they are run on. Applications which use the streaming method are Citrix Xen App and VMware ThinApp.

Network Infrastructure Virtualization

A virtual infrastructure is a software-based IT infrastructure being hosted on another physical infrastructure and meant to be distributed as a service as in cloud computing’s Infrastructure as a Service (IaaS) delivery model. It provides organizations, particularly smaller ones, that cannot afford to build their own physical infrastructure, access to enterprise-grade technology such as servers and applications. The distribution is often done via the cloud, meaning over large networks such as the Internet.

Benefits of a virtual infrastructure:

Scalable - Allows provisioning as many or as few logical servers as required, and users only pay for what they use.
Flexible - Allows for multiple server and networking configurations as compared to a hardwired physical infrastructure, which requires more capital and effort to change.
Secure - Allows more security to be layered on top of whatever security is already present in the virtual infrastructure because all traffic to the virtual infrastructure goes through the actual physical infrastructure.
Load balancing - Allows software-based servers to share workloads easily and distribute them properly so that no single logical server is taxed more than the others.
Backup and recovery - Promotes easier backups because everything can be saved somewhere, allowing for quick recovery in other hosts if a few hosts are down. This is almost impossible with physical servers, which have to be revived before services can resume.