Computers blogs
flyg till köpenhamn

MCC 2011 Awardee

MCC 2011 Awardee
MCC 2011 Awardee

Recommended Books and Devices

Tuesday, February 8, 2011

The place of WAN optimization in "d cloud"

In The IT industry, the word “Cloud” is a buzz word, and like all other computer industry buzzwords since the Inception of the X86 architecture, it has taken a myriad of meanings and coinages.

However, VMware, whose vSphere™ 4 is positioned as the industry’s first operating
system for building the internal cloud, uses this definition:

“Cloud computing is the use of networked infrastructure software and capacity to provide
resources to users in an on-demand environment. Sometimes known as utility computing,
clouds provide a set of typically virtualized computers which can provide users with the
ability to start and stop servers or use compute cycles only when needed, often paying only upon usage.”
This article is not meant for a freshman course in cloud computing(for that,you can read my other article here) but is meant to critically analyze the issues that trail the use of Cloud computing. Nonetheless, it is worthwhile to say that IT decision makers in organizations have taken to (or are considering being taken to) migrating their data and applications to “the cloud” due to the mouthwatering reduction in CAPEX (capital expenditure) and OPEX(Operating Expenditure) that it yields.
Enterprises don't shift overnight, and many C-level executives remain hesitant to adopt cloud too quickly or wholly. Commonly used to gauge the adoption of technology is Rogers' bell curve, which describes the acceptance of a new product or innovation over time. The model indicates that the first group of people to use a new product is called "innovators," followed by "early adopters." Next come the early and late majority, and the last group to eventually adopt a product are called "laggards."
According to Hitachi data systems, if the industry were to use Rogers' bell curve to examine the adoption of cloud computing, it might reveal that the early majority of the industry is waiting for early adopters to demonstrate the real value of cloud computing in business.  
 A viable reason why this is taking so much time to happen is possibly the fact that the cloud is largely dependent on the internet, needless to say… WAN AVAILABILITY.
The instinctive approach to this problem is for IT managers to get more bandwidth, but really how much bandwidth is enough? the truth is BANDWIDTH IS NEVER ENOUGH not to mention the cost implications of WAN upgrades.

Here comes WAN optimization to the rescue.  WAN optimization technologies working together to quickly and easily restore application performance, improve response time and recover WAN bandwidth, all without continuing the cycle of expensive WAN upgrades. These technologies include :

 The underlying protocol used to transfer files between clients and servers in an enterprise is known as CIFS(Common Internet File System). The protocol can be optimized by efficiently and transparently converting its serial nature of transfer into a parallel one. Also handshaking/chattiness is eliminated because parallelizing communications sends both request and acknowledgments all at the same time. This greatly reduces response times.


This works by observing repetitive content in client/server communications and application traffic, it then uses tokens that are lighter in weight to represent those data that are repetitive, significantly reducing file transfers.

Object caching stores re-usable application objects in a local cache so they can be immediately accessed by any user downstream from the appliance. This greatly reduces
bandwidth consumption and the latency(wait times between transfers) associated with file services. The only transactions that cross the WAN are a permissions and a freshness
check to ensure that the copy in the cache is still current.   

Due to the cost of bandwidth, it has to be efficiently constrained and managed. A good way of doing this is by application of business processes and policies .
Web developers in the head office in Victoria Island Lagos office must be given a guaranteed amount of bandwidth and top traffic priority to upload html files and css sheets of websites designed in the last week of each month to the “Cloud provider” in Port Harcourt.

Common industry compression algorithms used at wirespeed can further remove extraneous and predictable information from the traffic before it is transmitted. This
is especially helpful before byte and object caches have been fully populated.

Work is still being done in the industry to hardwire these techniques and better techniques into intelligent optimization appliances (Notably the Blue Coat proxySG appliance from Blue Coat Systems Inc.) to be plugged into the cloud infrastructure for optimized cloud performances.

Saturday, January 1, 2011

Microsoft's travails in 2010

One company i'm very passionate about when it comes to releasing products that the computer users and tech savvy consumers need is Microsoft.
Quoting Sharon Chan  of newsfactor;  "As Microsoft looks back on 2010, one thing is clear: The company has more product in it than Justin Bieber's hair."

Through the year 2010, the software company reeled out a stream of new offerings, from the early success of Kinect to the flaming failure of Kin.
It however aches my heart to say that despite all the effort, Microsoft's stock hasn't done as well as i would have envisaged. Microsoft started the year at $30.48 a share but closed at $28.01 Tuesday -- down 8.1 percent.

The company also lost leaders and brains of the software business: Chief Software Architect Ray Ozzie, Entertainment and Devices division President Robbie Bach and Business division President Stephen Elop.

Below is an enumeration of the products that kept Microsoft on the lips of every tech savvy consumer,on the display screens of every information technology and communications forum, and on the products-to-purchase list of every enterprise seeking to maximise their profit by using cost-effective,service delivering, software and hardware.

WINDOWS AZURE: Microsoft began the year with the launch of Azure, its platform for cloud computing.

As Chief Executive Steve Ballmer first said at a University of Washington speech in March, "We're all in" the cloud, a platform where software and data are stored in remote Microsoft data centers instead of corporate servers and are accessed with Internet-connected devices, such as laptops, mobile phones, tablets and televisions. Cloud computing is a bet-the-company move for Microsoft. In the next 10 years, the company believes delivering software via the cloud could make up half of the company's revenue.

The progress has been slow, however. Success of Azure depends on how many developers build software for it. It now has 20,000 customers. The company, meanwhile, continues to release new features and products for the cloud. In July, Microsoft announced plans to sell an Azure appliance that would reside on a corporate campus rather than in a data center run by Microsoft. The product is aimed at companies that don't trust their business data to an outside company.

Windows 7
: To me, he best Client operating system to be released by Microsoft in terms of and bringing  together ease of use and ease of deployment ,the latest version of Microsoft's operating system Windows 7 launched last year, it continued to see strong sales in 2010, selling 240 million copies since it hit the market in October 2009.

Kin: Microsoft launched the Kin mobile phone in April, calling it the phone for the socially networked generation. The phone's software was designed for life-casters who want to update their status and upload photos to Facebook. It began selling in May with Verizon Wireless, and by the end of June, Microsoft had pulled it from the market. Sales were reportedly disappointing. CEO Ballmer said the Kin distracted attention from Windows Phone 7, which started selling in the fall.

Office 2010: This ultimate product for the workplace makes $18.6 billion a year in revenue for Microsoft, came out with its latest version in May. For the first time, Microsoft also made a free lightweight Web-based version, called Office Web Apps, to compete with Google Docs. Microsoft reports Office 2010 has sold 6 million copies.In October, in the quest for further pushing its software-as-a-service campaign, the company also launched Office 365, Office software offered as an online service hosted by Microsoft in the cloud.

SharePoint 2010: Microsoft's collaboration software, which unifies into a single box, file sharing, Web site design and internal corporate searching(both document and people search). The latest version that came out in May added social-media features for businesses.

Bing: While Microsoft launched Bing in 2009, the search-engine development team has since continually rolled out new features. Microsoft also sewed up its massive partnership with Yahoo in October. Bing now runs all of Yahoo's searches and Microsoft's AdCenter now serves as the advertising platform for both sites. With the addition of Yahoo's search traffic, Bing now conducts 28 percent of all searches online in the U.S., according to November numbers from comScore. Google's dominant position remains strong at 66 percent.

Internet Explorer 9: In September, Microsoft released the beta version of its new Web browser, which has since been downloaded 15 million times. The software promises a new generation of richer, more animated and more application-like Web sites. The new browser supports the HTML5 Web standard, the foundation of new Web design. Unfortunately, Internet Explorer 9 works only on Windows 7 and Vista, which will limit how quickly it will be downloaded and how many developers will build HTML5 sites.

Windows Phone 7: Two years after Apple launched the iPhone, Microsoft introduced its redesigned mobile-phone operating system, dubbed Windows Phone 7, in October. The company says it will spend $100 million to market the phones, which are designed to make it faster to get contact updates and other information from your phone.In the absence of Microsoft's figure of how many phones customers have bought,phone-makers have sold 1.5 million to wireless carriers.

Kinect for Xbox 360: The motion sensor for Microsoft's video-game system allows people to play games without using a handheld controller. While the sensor has only a limited array of Xbox games that take advantage of the technology, it has sold 2.5 million units since launching in November. Microsoft sees potential in motion sensors beyond riding imaginary river rafts. The company believes that voice and gesture, not the mouse and keyboard, will define the desktop and office of the future.

Microsoft store in Bellevue: While it was not a global product that will sell in 40 countries, the Microsoft store that opened at Bellevue Square in November, the first retail store Microsoft opened in its home base. Ballmer himself showed up for the ribbon cutting.

Lync: This unified communications system simply named Lync, released in November, totally outshined Microsoft's other unified communications softwares such as Office communicator,... Lync can replace a traditional office phone system, and it brings together phone calling, instant messaging, video conferencing and presence, software that senses whether you're at your desk, on the phone or in a meeting.

As we begin 2011, i'm excited just thinking about what Microsoft has in store for us.Certainly the cloud computing technology named windows Azure is expected to be made less Microsoft hosted, i'm also thinking virtualization technology will not end with Virtual pc, what with VMware conquering the virtualization market in 2010.Also, i dont think Microsoft is done unleaashing the Office software tricks on us. Lets wait and see ...