Tag Archives: cloud storage

What is “the Cloud”? And what is it not?

cloud-sky-photography-city-scape-sun-flare-skyline-blue-summer-light-cloudy

Clouds on summer sky (Photo: fastjel)

The Cloud – One of the hottest buzzwords and most abused in describing products or services recently. In this article I would like to mix facts with personal experiences I made, in order to assist everyone, who would like to find out what the cloud is and does and the things that is does not do (hence the title). Cloud has been buzzing around for a while now but when I witnessed both my parents talking about “the cloud” and how they use it in private I understood that this technology has arrived in mainstream and it is here for good.

Cloud??

So what is the cloud in few words? The cloud, or cloud computing is a technology design to enable users working with solutions independent from device, location and network. Of course there are specialisations with a larger or smaller focus on one or two subjects but in general this is it.

Origin of the Term

There are many theories on the origin of the term, yet there is no proven story. Feel free to check some good options on the Wikipedia article for cloud computing. My theory is that it developed from the use of cloud clip-arts and stencils in technical drawings or presentations, created to visualise a network setup. I am sure that even before the term became a buzzword, most of you have seen presentations with little black boxes, switches and routers in and around a large cloud to set a virtual border between realms.

Is the Cloud something new?

I am afraid it is not. The ideas and designs for such concepts have already been around since the 1950s but like with many breakthroughs in the user world, it required certain cultural and technological thresholds to be reached before the adoption could take place on wide-scale.

What is the Cloud?

  • Agility – The cloud is agile and therefore allows users to upscale or downscale their service based on business demand. Further the actual hardware, used to host a virtual machine, can be re-purposed if necessary. This is however not a cloud-only benefit, please read further down on infrastructure virtualisation.
  • Availability – Services have the technological possibility of being available independent from devices, network and location. This is of course relative to the design of each service along with its purpose but technically this is no limitation. For instance you can use cloud video conferencing services to join any enterprise-grade video conference call from your smartphone, notebook, office workstation, tablet or even from a private computer at your home or maybe somewhere else. Of course your conference partner needs to have their own environment set up to accept connections from outside in general. Cloud technology is not a wall-breaker and cannot bypass security of an organisation, if they don’t allow such connections by policy.
  • Business Continuity – Cloud services are set up with redundancy and failover automation in place. So that even if single devices would fail, users would not notice and can proceed using the service. Such reliability would traditionally cost a lot of money when investing in owned or dedicated infrastructure black-boxes.
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Asus product presentation event of cloud-enabled tablet device with Windows 8 (Photo: Tecdencias)

What is the Cloud NOT?

  • Cloud = VirtualisationVirtualisation of infrastructure is a great way of deploying new solutions and upgrading your environment. But if you do this within your WAN this does not automatically mean you are using the “cloud”. You are just virtualising your infrastructure. Fair and square.
  • “No more hardware” – Well that’s a lie. Using software solutions or virtual infrastructure there will still always be servers and databases that require a physical body. Only the deployment and usage is changed but there will always be hardware. You might not own the hardware and you will most likely never see or touch it but it’s there, somewhere in a physical data centre.
  • Grid computing – No, grid computing is not the same as cloud computing in my opinion. Even though, it might be its scientific opposite. Where grid computing allows many computing units to work on a common target (e.g. movie rendering in render farms or Bitcoin mining), cloud computing allows a single user to utilise just any infrastructure in the pool offered by the cloud service provider to achieve their objective.
  • “Private Cloud” needs to be on-premises – No that’s not correct even though it seems to be a common assumption. A cloud service can be deployed dedicated for your organisation without anyone else having access to it, but the location of the physical hardware is irrelevant in order to provide that. In most cases the service provider will utilise hardware that is physically near to the user base in order to avoid performance issues that could occur on long “open internet” routes.

Challenges of Cloud Technology

  • Security – Any cloud service can be set up in secure manner if the solution and the environment of the clients allow it.
  • Privacy – Yes, privacy is a hot topic nowadays. But actually, it always were even in pre-internet age. Privacy is nothing impossible even in the cloud, even in the internet if you choose the right service provider. And if you are looking for good providers but affordability is a concern, make sure that your selected partner has a few good reference clients to show-case to you.
  • Compliance – When you are in phase 2 of the provider selection, bring in the techies of your organisation to make sure all offered functions and features are compliant to any active IT security policies that you need to consider.
  • Vendor Strategy – Cloud providers equal single vendor lock-in? Yes, it can be the case but if you want to avoid that, talk about this particular subject with your provider candidates. A few providers out there have established alliances and offer support to avoid any lock-ins.
  • Online works, offline it doesn’t – Depending on what your solution looks like make sure that your workforce  can use the solution when they are online and when they are offline. For instance when changing a file being on a flight, the data should update and synchronise itself in the cloud again when they are online. However there are some services which this does not apply to such as real-time communication (e.g. WebRTC, video conferencing, VoIP telephony, instant messaging).

Examples of Public Cloud Solutions

Summary

I hope this cleared some confusion around cloud terminology and technology. Further I hope it helped you through your process of picking a good service provider for your organisation if that was your objective. Further I would like to thank Simon Dudley of LifeSize and Phil Karcher of Forrester Research for hosting the webinar, which sparked the inspiration to write this article. LifeSize is often arranging interesting webinars and announces them on their social media platforms. Maybe I will see you on their next event – until then.

Have anything to add or feel I got the wrong picture? You are welcome to comment below and join the discussion. We at Telepresence24.com love your feedback!

What is WebRTC? – Overview for Busy People

webrtc, logo, chat, bubble, shapes, colours, colorsNo other topic is roaming the news and social media as much as WebRTC these days. But what is WebRTC and what should it mean to you?

Today I would like to give you an overview around this trend and where it came from. In this article I would like to try out the “For Busy People” article format by consolidating all hot topics into quick facts to add value to you without getting side-tracked. I know you busy people are busy and so you can just skip the parts of the article that you are not interested in.

What does WebRTC stand for?

WebRTC means Web Real-Time Communication, so we are talking about ways to communicate without any delay, based on a web-browser, without the use of software that needs to be installed beforehand.

What is WebRTC?

WebRTC is an open framework for placing real-time communication components on web-pages and is controlled by the World Wide Web Consortium (W3C), who are also taking care of other web-standards such as HTML, XML, CSS and others. WebRTC components could include methods such as VoIP, Instant Messaging (or just “chat”), video conferencing or a combination of these. Personally I would count WebRTC to the umbrella of Unified Communications, but the actual use of the WebRTC solutions depend on each enterprise.

Where does WebRTC come from?

WebRTC technology was first developed by Global IP Solutions (or GIPS), a company founded around 1999 in Sweden. In 2011 GIPS was acquired by Google and the W3C started to work on a standard for WebRTC. Since then Google and other major players in the web-browser market, such as Mozilla and Opera, have been showing great support for WebRTC.

How does WebRTC work?

The framework is based on HTML5 and JavaScript but does not utilise SIP or H.323 like other Unified Communication solutions. The signalling and transfer of data works over RTP and with an XMPP extension called “Jingle”. With the newly introduced JavaScript Session Establishment Protocol (JSEP) direct connections can be established without the need of a piece of hardware in the middle. Depending on the deployment audio, video and / or other data can now be exchanged to allow WebRTC to happen in your browser.

And for our firewall traversal specialists: WebRTC can do STUN, ICE, TURN, RTP-over-TCP and supports proxies. What else do you wish for?

setup, diagram, webrtc, workflow, process, technical, implementation, visual, visualisation, chart, image, picture, explanation, how does webrtc work

How does WebRTC work? – Click for larger pop-up

What does WebRTC mean to me?

Imagine the impact of 1,000,000,000+ endpoints. Not bad! This is the potential amount of endpoints talking to each other and making VoIP calls or even video conferences. Even though Microsoft is strongly pushing Skype for desktop video conferencing, they are also making sure that their Internet Explorer is ready to take on the WebRTC challenge.

But the missing link right now is: Will there be interoperability between WebRTC and other Unified Communication solutions? I believe the first developers, making both worlds compatible to each other will have edge.

Examples for WebRTC?

The possibilities are impossible to count. Especially in the age of BYOD everyone has their smartphone always ready and beyond that every notebook and desktop PC could participate in WebRTC. Here are some examples I could think of:

  • Customer service via video conference (the end of the service hotline?)
  • Working together on documents via web (web-collaboration beyond firewalls)
  • Smart-TVs allow you do do video conferences without infrastructure or service running in the back (if there’s a browser – there’s a way!)
  • Not interested in video conferences? Have a video diary! (takes only cloud storage and WebRTC)
  • WebRTC might change the face of Social Media platforms like Facebook, LinkedIn and Twitter completely if implemented (why not quickly talk about it?)
  • Instead of displaying phone numbers to your common window-shopper, provide a QR-code or a NFC space, so users can reach directly to you with their smartphone or tablet (we got a camera, a mic, a speaker – so let’s use them!)

Is there a WebRTC presentation?

You are lucky! Google has recently released a web-based presentation with a lot of interesting slides. I have also added a video below, for your to get some more details on WebRTC, Let me know of your thoughts!


Web Real-time communication – Google I/O 2013 – by Justin Uberti

[youtube=http://www.youtube.com/watch?v=p2HzZkd2A40&w=575]