Jan 09, 2015

What’s the difference between DaaS and VDI?

What practical differences are there between DaaS (desktop as a service) and VDI (virtual desktop infrastructure)? It seems to me that both services perform essentially the same task. Is there any “knockout blow” that makes one the better choice than the other?
Best answer
01/11/2015
They both have benefits but come at the problem in different ways. With DaaS, the desktop and all its apps are delivered via a remote connection, or inside a browser. Like other Software as a Service types of things, the apps are coming from Internet-based and hosted providers.

VDI still gives IT more control because the desktop sessions are coming from servers that are inside your own data center, which can be important for some.

With both, the challenge is having your infrastructure act together: making sure you have enough storage and network bandwidth to deliver the desktop to your end users. With DaaS, much of that infrastructure comes from the Internet while with VDI you have more control and therefore responsibility for it. Also licensing the desktop OS can be an issue with both methods too.

A good discussion of the pros and cons can be found here:
http://www.itconsultingnj.com/vdi-hosted-desktops-daas-whats-the-difference
01/13/2015
https://en.wikipedia.org/wiki/Desktop_virtualization#Desktop_as_a_Service

"Remote desktop virtualization can also be provided via a Cloud computing similar to that provided using a Software as a service model. This approach is usually referred to as Cloud Hosted Virtual Desktops. Cloud Hosted Virtual Desktops are divided into two technologies: Managed VDI, which is based on VDI technology provided as an outsourced managed service and Desktop-as-a-Service (DaaS) which provides a higher level of automation and real multi-tenancy reducing the cost of the technology. The DaaS provider typically takes full responsibility for hosting and maintaining the compute, storage, and access infrastructure, as well as applications and application software licenses needed to provide the desktop service in return for a fixed monthly fee. For example, VMware's Horizon DaaS, based on VMware's acquisition of Desktone, is a monthly fixed rate DaaS service.[8] Amazon's WorkSpaces on Amazon EC2 is also a monthly fixed rate.[9]

Cloud hosted virtual desktops can be implemented using both VDI and Remote Desktop Services-based systems and can be provided through public cloud, private cloud infrastructure, and hybrid cloud platforms. Private Cloud implementations are commonly referred to as "Managed VDI". Public Cloud offerings tend to be based on Desktop-as-a-Service technology."
Best answer
01/11/2015
They both have benefits but come at the problem in different ways. With DaaS, the desktop and all its apps are delivered via a remote connection, or inside a browser. Like other Software as a Service types of things, the apps are coming from Internet-based and hosted providers.

VDI still gives IT more control because the desktop sessions are coming from servers that are inside your own data center, which can be important for some.

With both, the challenge is having your infrastructure act together: making sure you have enough storage and network bandwidth to deliver the desktop to your end users. With DaaS, much of that infrastructure comes from the Internet while with VDI you have more control and therefore responsibility for it. Also licensing the desktop OS can be an issue with both methods too.

A good discussion of the pros and cons can be found here:
http://www.itconsultingnj.com/vdi-hosted-desktops-daas-whats-the-difference
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