Citrix FlexCast Models

Citrix FlexCast Models

Hosted shared – With the hosted shared FlexCast model, multiple user desktops are hosted on a single server-based operating system and provisioned using Machine Creation Services or Provisioning Services. The hosted shared desktop model provides a low-cost, high-density solution, however applications must be compatible with a multi-user server based operating system. In addition, because multiple users are sharing a single operating system, users are restricted from
performing actions that negatively affect other users, for example installing applications, changing system settings and restarting the operating system. There is also the potential that a single user could consume an unfair share of resources, which may negatively affect other users. The hosted shared FlexCast model is provided by Citrix XenDesktop in combination with MicrosoftRemote Desktop Services (RDS).

• Hosted VDI – The hosted VDI FlexCast model provides each user with a desktop operating system. Hosted VDI desktops
are less scalable than hosted shared desktops because each user requires their own operating system. However, hosted VDI
desktops remove the requirement that applications must be multi-user aware and support server based operating systems.
In addition, the hosted VDI model provides administrators with a granular level of control over the number of virtual processorsand memory assigned to each desktop. The hosted VDI model is provided by Citrix XenDesktop, and offers the following subcategories:
Random / Non-Persistent – Desktops are based on a single master image and provisioned using Machine Creation
Services or Provisioning Services. Users are dynamically connected to one of the desktops in the pool each time they
logon. Changes to the desktop image are lost upon reboot.
Static / Non-Persistent – Desktops are based on a single master image and provisioned using Machine Creation
Services or Provisioning Services. Users are allocated a virtual
desktop on first access. Once assigned, users will always
be connected to the same virtual desktop. Changes to the
desktop image are lost upon reboot.
Static Persistent – Desktops are based on a single master
image and provisioned using Machine Creation Services or
Provisioning Services. Users are allocated a virtual desktop on
first access. Once assigned, users will always be connected
to the same virtual desktop. Changes to the desktop are
stored in a personal vDisk and retained between reboots.
Desktops with a personal vDisk cannot be shared between
multiple users; each user requires their own desktop. If high
availability is required, the personal vDisk must be stored on
shared storage.
• Remote PC – Physical desktops that have already been
deployed. These desktops must be managed manually or with
3rd party desktop management tools.
• Streamed VHD – Desktops are based on a single master image
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and provisioned using Provisioning Services. The streamed VHD
FlexCast model allows Windows XP, 7 and 8 desktops to be
run locally on the user’s desktop computer. Streamed VHD is a
great solution for high-end workstations because it allows them
to leverage local processing power. Streamed VHD requires a
LAN connection to be in place between the desktop and the
provisioning servers and changes to the desktops are lost upon
reboot.
• Local VM – Windows XP, 7, and 8 desktops running locally within
a hypervisor. The virtual desktop image is completely delivered
to the hypervisor to allow for offline connectivity. Citrix XenClient
is used to provide the Local VM FlexCast model.
• On demand apps – The On-Demand Apps FlexCast model
does not provide users with a virtual desktop; instead Windows
applications are centralized in the datacenter, and instantly
delivered via a high-speed protocol (requires connection) or
streamed (offline support) via Microsoft App-V.

FlexCast Model Comparison

2014-10-03 15_04_07-Citrix Virtual Desktop Handbook (7x).pdf - Adobe Reader

FlexCast Model Capability Comparison

2014-10-03 15_03_14-Citrix Virtual Desktop Handbook (7x).pdf - Adobe Reader

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