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Citrix Systems 4.2 manual Dedicating Resources to Accounts and Domains, How to Use Dedicated Hosts

Models: 4.2

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Chapter 4. Accounts

4.1.1. Dedicating Resources to Accounts and Domains

The root administrator can dedicate resources to a specific domain or account that needs private infrastructure for additional security or performance guarantees. A zone, pod, cluster, or host can be reserved by the root administrator for a specific domain or account. Only users in that domain or its subdomain may use the infrastructure. For example, only users in a given domain can create guests in a zone dedicated to that domain.

There are several types of dedication available:

•Explicit dedication. A zone, pod, cluster, or host is dedicated to an account or domain by the root administrator during initial deployment and configuration.

•Strict implicit dedication. A host will not be shared across multiple accounts. For example, strict implicit dedication is useful for deployment of certain types of applications, such as desktops, where no host can be shared between different accounts without violating the desktop software's terms of license.

•Preferred implicit dedication. The VM will be deployed in dedicated infrastructure if possible. Otherwise, the VM can be deployed in shared infrastructure.

4.1.1.1.How to Dedicate a Zone, Cluster, Pod, or Host to an Account or Domain

For explicit dedication: When deploying a new zone, pod, cluster, or host, the root administrator can click the Dedicated checkbox, then choose a domain or account to own the resource.

To explicitly dedicate an existing zone, pod, cluster, or host: log in as the root admin, find the resource

in the UI, and click the Dedicate button.

For implicit dedication: The administrator creates a compute service offering and in the Deployment Planner field, chooses ImplicitDedicationPlanner. Then in Planner Mode, the administrator specifies either Strict or Preferred, depending on whether it is permissible to allow some use of shared resources when dedicated resources are not available. Whenever a user creates a VM based on this service offering, it is allocated on one of the dedicated hosts.

4.1.1.2. How to Use Dedicated Hosts

To use an explicitly dedicated host, use the explicit-dedicated type of affinity group (see

Section 11.8.1, “Affinity Groups”). For example, when creating a new VM, an end user can choose to place it on dedicated infrastructure. This operation will succeed only if some infrastructure has already been assigned as dedicated to the user's account or domain.

4.1.1.3. Behavior of Dedicated Hosts, Clusters, Pods, and Zones

The administrator can live migrate VMs away from dedicated hosts if desired, whether the destination is a host reserved for a different account/domain or a host that is shared (not dedicated to any particular account or domain). CloudPlatform will generate an alert, but the operation is allowed.

Dedicated hosts can be used in conjunction with host tags. If both a host tag and dedication are requested, the VM will be placed only on a host that meets both requirements. If there is no dedicated resource available to that user that also has the host tag requested by the user, then the VM will not deploy.

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Citrix Systems 4.2 manual Dedicating Resources to Accounts and Domains, How to Use Dedicated Hosts
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.