Desktop as a service technology has been around for a while now, but relatively few organizations have bought...
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Desktop as a service (DaaS) refers to VDI hosted in the public cloud. In other words, a provider leases cloud-hosted virtual desktops to an organization.
But cloud-hosted virtual desktops haven't caught on because of a few major DaaS concerns. First of all, the ongoing costs that come with a subscription-based service are a deterrent. Then there are the security concerns and the fact that the technology is still young and needs more time to mature.
Long-term costs add up
Subscription-based services and licensing are quickly becoming the norm in the enterprise, but some IT shops are reconsidering this approach. When cloud providers initially offered software as a service or infrastructure as a service, many cash-strapped IT shops saw the offerings as a way to avoid large, upfront capital expenditures. Over time, however, these types of services chip away at IT budgets. With DaaS, an organization never actually owns the desktops, and the fees go on for as long as the subscription remains in effect.
It's similar to credit card debt. If a person uses a credit card to soften the financial blow of a large purchase, he can pay the bill over time, but if he keeps putting it off, the monthly payments that were once small and manageable quickly spiral out of control. When IT subscribes to too many services, the aggregate cost of the subscriptions consumes its budget in much the same way.
DaaS concerns about security may be misplaced
Many IT pros also have concerns about DaaS security, but they shouldn't. Using cloud-hosted virtual desktops may be the best way to mitigate desktop-related security problems.
Endpoints represent the greatest potential security threat, because users make mistakes. Users routinely destroy or infect their virtual desktops by installing unauthorized applications -- such as games or internet toolbars -- making configuration changes or even deleting system files because their hard disks are full. Even if a user doesn't do any of these things, there is still the risk a user might inadvertently infect his PC by visiting a malicious website or opening an infected email attachment.
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Even though operating systems are more secure than they once were, and admins can use group policies to lock down corporate desktops, end users are still a threat to security. Moving the desktop OS to the cloud insulates an organization against user-induced security breaches. DaaS providers go to great lengths to secure their virtual desktops. If something compromises a virtual desktop, the subscribing organization is safe because the desktop is physically isolated from its network. The desktop also typically resets itself to a pristine state at the end of each user's session.
Waiting for a more mature DaaS
To quell DaaS concerns, IT shops still want to see the technology mature. Many are also waiting for DaaS provider standards to evolve. Plus, corporate desktops are at a crossroads. Five years from now the standard desktop OS could be Windows, Mac or Linux. Or desktop operating systems might not even exist at all. With so much uncertainty, some IT shops are taking a wait-and-see approach to cloud-based virtual desktops.
As the technology matures, it's likely the DaaS adoption rate will rise, although many organizations will undoubtedly continue to host virtual desktops in-house.
Detailed guide to the DaaS market
DaaS providers vs. DaaS platforms
A look at DaaS for disaster recovery