VDI

What's different about storage for virtual desktops?

It is often said that data center-level server virtualization projects created a renewed demand for networked storage, both NAS and SAN.

If that's true, then efforts to virtualize desktops--aka virtual desktop infrastructure (VDI) projects--will create renewed demand for high-performance storage, both network-attached storage (NAS) and storage area network (SAN).

Storage performance is a major determinant in successful deployments of VDI. Why? VDI is a storage input/output-intensive environment.

When you lift the hood to find out what's going on inside a disk array that's supporting virtual desktops, you see the following:

The typical virtual desktop running Windows … Read more

How desktop virtualization survived the recession

It's fair to say desktop virtualization has had a checkered past.

As far back as 2005, VMworld had presentations on the topic of desktop virtualization, also known as Virtual Desktop Infrastructure. By 2007, VMworld had developed a desktop virtualization track with a number of deep-dive technical sessions. In June of 2008, IDC issued a report on "The Promise Of Desktop Virtualization" touting how desktop virtualization can help rein in the costs of managing and maintaining PC infrastructures.

In February of 2009, CRN reported Gartner's predictions that by 2013, between 10 percent and 15 percent of enterprise PCs would be virtualized. … Read more

Virtual-desktop integration touches all professions

I recently gave a presentation at a small gathering of IT "enthusiasts" in Albany, N.Y. I say "enthusiasts" because the audience was an eclectic mix of IT technologists and people with advanced expertise in non-IT fields. For example, I met two people from an architectural firm, and neither was an IT administrator. One was an architect and the other was a building systems engineer (HVAC, wiring, etc.). They were there specifically to learn more about an IT systems requirement for a new elementary-school building project. I had not expected to see an architect in the … Read more

Network, don't fail me now!

Everything in IT depends on the network.--and not just in an abstract, "need it occasionally" sort of way. The packets must flow for virtually every operation, every job, every transaction. Whenever packets drop, or links go down, we're disconnected and isolated. Information doesn't flow; apps don't work; users don't proceed. We need the network up and running, millisecond by millisecond, every millisecond of every day.

Our utter, urgent dependency won't lessen in the coming years. It will intensify--redoubling and redoubling again. Cisco calls its vision of the future "together." HP … Read more

If virtual desktops great, why not used more?

Virtualization analyst Brian Madden asks an excellent question:

If VDI (virtual desktop infrastructure) is so great, then why aren't you using it?

It's a really good question, isn't it? Brian observes that however encouraged we are by the progress VDI has made, and however enthused we may be about extending the wins of server virtualization over into the desktop realm, we, personally, are not using desktop virtualization. You don't see analysts and developers doing so. And even the folks you meet from Citrix, Microsoft, Quest, VMware, and Wyse--the people selling VDI, for goodness' sake!--use traditional &… Read more

A challenge for storage entrepreneurs

The storage-focused BD Event wrapped up last week in Boston after two and a half days of presentations and networking for the enterprise storage industry--executives meeting up with executives in a kind of industry-focused, back to old college days mixer. If you're an entrepreneur with designs on the enterprise storage market, this was the place to be.

The event was bracketed by two provocative presentations: one delivered by Peter Bell of VC firm Highland Capital Partners to kick-off the event, and one by Peter Levine, senior vice president of Citrix, that concluded the formal presentation session the following day. … Read more

Virtualized desktops in the cloud age

Virtualization is a major component of cloud computing, but the primary focus has been on virtualized server instances running on cloud providers such as Amazon EC2.

There is little argument that applications running in the cloud offer many attractive advantages, but ultimately users need to be able to access their data from any device and the data itself must maintain the highest levels of synchronization and integrity.

One of the big challenges is the fact that users are comfortable with fat applications (generally meaning, not browser-based) for a large number of tasks. And while Google Docs and the like are great supplements for large apps like Microsoft Office, they've yet to supplant them completely.

To avoid disrupting users too much, and avoiding the necessity of rewriting applications to be browser-based, many IT organizations turned to desktop virtualization tools to solve the problem.

Desktop virtualization was supposed to solve one the biggest headaches in IT: managing and securing corporate desktops in a more effective way. From IT's perspective, it's much quicker and easier to manage all the company's virtual desktops than physical distributed desktops. When it comes time to roll out a software update, they can automatically deploy it to all virtual desktops at once, rather than going machine-to-machine and uploading the software manually.

There are many options when it comes to desktop virtualization, but generally the "solution" most people think of is virtual desktop infrastructure (VDI).

VDI has a number of strengths such as cost reduction and management efficiency as well as a number of drawbacks, such as a lack of offline capabilities. But the core problem is that VDI puts an entire desktop that's not built for the cloud into the cloud. It just doesn't make sense to take your fat desktop and OS and stick it right onto the cloud. … Read more

New York hospital revives ailing computer network

It's no secret that the installed base of technology at large medical facilities needs refreshing, especially as hospitals work toward digitizing medical records.

At St. Vincent's Catholic Medical Center in New York, a nonprofit with 42 facilities across five boroughs, the constant accessing and updating of patient records through the hospital's shared-bandwidth MPLS network resulted in unacceptable lag time pretty much all day, every day.

So Kane Edupuganti, director of IT Operations & Communications, convinced the higher-ups to retire the hospitals' hundreds of five-plus-year-old desktops and buy more than 600 zero client cubes from Pano Logic.

"… Read more

Bring thin clients to the home

I visited my dad in Maine over the weekend and, as is often the case, part of the weekend was devoted to "IT administration," aka attending to PCs and associated gadgetry.

While some of the time involved transferring photos among various devices, a decent chunk was devoted to working on a PC whose operating system had decided to irretrievably corrupt itself somehow, requiring a fresh rebuild. And, yes, it was Windows--Windows XP to be precise--but please don't try to tell me that this sort of thing never happens with your favorite OS of choice.

This story isn'… Read more