9dead00ded
- Moved RST guide to the arch-design folder - Deleted XML files - Updated scripts Change-Id: Id0e38a9cada9dd75cb9c8f3bd2d88ce2f4fd3eac Implements: blueprint archguide-mitaka-rst
48 lines
1.7 KiB
ReStructuredText
48 lines
1.7 KiB
ReStructuredText
====================
|
|
Desktop-as-a-Service
|
|
====================
|
|
|
|
Virtual Desktop Infrastructure (VDI) is a service that hosts
|
|
user desktop environments on remote servers. This application
|
|
is very sensitive to network latency and requires a high
|
|
performance compute environment. Traditionally these types of
|
|
services do not use cloud environments because few clouds
|
|
support such a demanding workload for user-facing applications.
|
|
As cloud environments become more robust, vendors are starting
|
|
to provide services that provide virtual desktops in the cloud.
|
|
OpenStack may soon provide the infrastructure for these types of deployments.
|
|
|
|
Challenges
|
|
~~~~~~~~~~
|
|
|
|
Designing an infrastructure that is suitable to host virtual
|
|
desktops is a very different task to that of most virtual workloads.
|
|
For example, the design must consider:
|
|
|
|
* Boot storms, when a high volume of logins occur in a short period of time
|
|
* The performance of the applications running on virtual desktops
|
|
* Operating systems and their compatibility with the OpenStack hypervisor
|
|
|
|
Broker
|
|
~~~~~~
|
|
|
|
The connection broker determines which remote desktop host
|
|
users can access. Medium and large scale environments require a broker
|
|
since its service represents a central component of the architecture.
|
|
The broker is a complete management product, and enables automated
|
|
deployment and provisioning of remote desktop hosts.
|
|
|
|
Possible solutions
|
|
~~~~~~~~~~~~~~~~~~
|
|
|
|
There are a number of commercial products currently available that
|
|
provide a broker solution. However, no native OpenStack projects
|
|
provide broker services.
|
|
Not providing a broker is also an option, but managing this manually
|
|
would not suffice for a large scale, enterprise solution.
|
|
|
|
Diagram
|
|
~~~~~~~
|
|
|
|
.. figure:: figures/Specialized_VDI1.png
|