- IBM Information Management
- IBM Websphere
- IBM Tivoli
- Integrated Solutions
- System Performance Group
- Cuts costs. By reducing the number of physical servers required in the datacenter, organizations are able to save on their power and cooling costs.
- Increases IT agility and efficiency. Customers can easily adapt to changing datacenter and computing needs by dynamically flexing capacity, optimizing VM placement, and automating repetitive management tasks.
- Improves performance and user productivity. By enabling ‘zero downtime’ maintenance, automatically recovering from hardware failure, and providing failover capabilities in disaster situations, end users are ensured access to mission critical application in all scenarios.
Why I.R.I.S. ICT?
As a Citrix Reseller, I.R.I.S. ICT can provide you with a first class service for all your virtualization, implementation and IT-management projects.
Supported by years of experience with the leading server-, storage- and networkproducts of todays world market, I.R.I.S. ICT has never forgotten that innovation is at least as important as knowledge and service.
That is why we have engineers that can combine their huge amount of experience with a great knowledge of today's latest products and technologies, and not only when it comes to hardware.
This is why you can be sure that you have reached tomorrow earlier than your competitors.
-I.R.I.S. ICT, your ICT-partner.
What are XenServer, XenDesktop and XenApp?
XenServer is an enterprise-class, cloud-proven server virtualization solution that radically reduces datacenter costs by transforming static and complex IT environments into more dynamic, easy-to-manage virtual datacenters. It provides advanced management capabilities to integrate and automate virtual datacenters at a fraction of the cost of other solutions.
XenDesktop is a desktop virtualization and VDI solution that delivers a complete Windows desktop experience as an on-demand service to any user, anywhere. XenDesktop can quickly and securely deliver individual applications or complete desktops while providing a high-definition user experience. Citrix® FlexCast™ delivery technology, included in XenDesktop, enables IT to deliver any type of virtual desktop, on any device. With XenDesktop, IT can manage single instances of each OS, application and user profile and dynamically assemble them which increases business agility and simplifies desktop management. Unlike first-generation VDI solutions that were applicable only to a narrow set of users, XenDesktop with FlexCast is the first product in the industry to support every desktop virtualization model in a single, integrated solution. This approach extends the benefits of virtualization
to every employee in the enterprise. With the full integration of XenApp functionality, customers can deliver on-demand applications as a seamless part of their overall desktop management strategy.
XenApp is a Microsoft® Windows® application delivery system that manages and virtualizes all applications in the datacenter and delivers them on demand to office, task and mobile users for optimal application performance and flexible delivery. These applications either run centrally in the datacenter or are streamed to the user’s preferred device.
A single copy of the application is managed centrally, reducing support and maintenance costs by as much as 40 percent. With more than 100 million users and 99 percent of the Fortune global 500 as customers, XenApp is the leader in delivering Windows-based applications with the best performance, security and cost savings.
Why this solution?
Challenges related to desktop virtualization include the need to ensure ROI, availability and performance.
Desktop virtualization challenges
Organizations considering desktop virtualization need greater assurances of the return on their desktop virtualization investments. ROI in a hosted desktop virtualization model is largely a function of the availability and performance of the underlying virtualization technology as the centralized nature of desktop virtualization means the desktop will be run in a VM on a host server.
Uptime is critical. Since virtualization consolidates hundreds of desktops onto a single server, a failure of that server will prevent hundreds of workers from getting their jobs done. Therefore, virtualized host servers require higher service levels than in the traditional client-server environment in which users employ their own desktop machines.
One of the biggest challenges with desktop virtualization has been the ability to guarantee legacy desktop performance in a virtual infrastructure. The main performance issue has been lag time. When the network is highly congested, users experience a lag between pressing a key on the keyboard and seeing the letter show up on the screen. Network congestion can also cause applications to load slowly. For example, users can wait a considerable time between selecting an application as simple as Microsoft® Word from the start menu and when it actually loads. Real-time applications such as voice, video and collaboration present even greater performance challenges.
Maximizing the number of desktop VMs per server by using the highest performing and most reliable hypervisor technology translates into fewer servers, which means less capital expense for server hardware and reduced
operational costs for power and cooling, increasing the organization’s return on its desktop virtualization investment.
Application virtualization challenges
Supporting legacy applications
Technological shifts, such as the transition from 32- to 64-bit computing platforms, have introduced more complexity to virtual application environments. While many customers are eager to migrate to 64-bit platforms to take advantage of greater memory limits and higher user densities per server, many of these legacy applications are either not supported by or are incompatible with 64-bit platforms. As a result, silos of low-density 32-bit servers must be maintained as the rest of the environment transitions to 64-bit, resulting in more complexity combined with greater management overhead.
Responding quickly to IT requirements
While application virtualization has proven extremely effective in accelerating delivery of new applications, scaling the datacenter to ensure that the computing and storage infrastructure supports the new applications remains a challenge. One example is the widely recognized need to minimize the time associated with server change management, especially since changes must proliferate across development, test and production environments. Similarly, IT is looking for better strategies to provision servers more rapidly, consistently and economically with fewer resources.
Ensuring protection against failures and disasters
The financial impact of planned and unplanned hardware maintenance can be significant. Downtime is especiallypainful when the delivery of applications is governed by service level agreements or the application is part of a revenue-generating business process, such as point of sale in retail environments, because the uptime provided by an individual server is still linked to the uptime of the underlying hardware. In other words, if a server or component fails or a server needs to be powered down for hardware maintenance while applications are running, all user application sessions on that server will be disrupted.
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