Virtualization

Virtualization: a move towards efficiency

Virtualization is thought to have begun back in the 1960s, when IBM tried to further partition mainframe computers in order to increase the utilization of the C.P.U, according to VMware’s official website.

An increase in C.P.U utilization is among one of the reasons why virtualization is important in the IT industry. Some of the other advantages of virtualization are: increased utilization of space and allowing the standardization of server builds. With increased CPU utilization, a number on servers can run on the same machine, this way, more work is done by the CPU. As opposed to receiving all the web traffic on a single machine, while SMTP traffic is on another machine and FTP traffic on another machine, you ca n receive all this traffic on a  single machine thus increasing CPU utilization. It is however important to make sure that you some discretion must be used when placing a number of machines on a single host machine since if done wrongly; it could cause a decrease in the performance of the C.P.U. Since the CPU utilization that virtualization offers affects space utilization indirectly, fewer physical machines are used in virtualization, thus less space is used. Last but not least, virtualization works easily with replication software used for the concepts of cloning, snapshots and ghosting among others. This helps the system administrator to create images of any given operating system on the network. Creation of custom images gives the system administrator a chance to create a standardized server build. This saves a lot of rime when it comes to configuring additional servers.

The biggest disadvantage of virtualization is the fact that having an organization’s servers on a single physical machine since it would be very easy to by-pass the security of the network server’s infrastructure. It would be a very big risk to an organization of several servers were hacked which is why it is disadvantageous to have a Web server, SMTP server, and any other kind of server are all on the same machine.

The IDS (intrusion detection system) is a common security practice when it comes to multiple network interfaces in any network. In a virtualized environment, however the IDS is not able to work properly since intrusion detection systems can only monitor physical network interfaces. Basically, the IDS works very well when monitoring egress and ingress traffic on a physical network interface, but when it comes to traffic that moves between virtual servers, the intrusion detection system does not operate properly.

For IT, virtualization is a must since it is needed for companies to stay technologically afloat, which calls for higher performance and higher capacity. Most organizations will want to do more with less which is why which is why virtualization is being used by almost all companies. Unless a new technological innovation is created, virtualization will remain to be a very important component in any reputable IT network.

Cloud Computing and Carbon Footprints

Cloud Computing and Carbon Footprints: Why Cloud Solutions Are Green Solutions

Cloud computing refers to the practise in which a network of the remote servers host on the web is used for storing, processing and management of the data instead on a personal computer or a local server. It focuses on the resource sharing and leads to maximize the effectiveness of the same. The resources of the Cloud are shared by more than one user and are also allocated as per the demand arises.

Less energy is used by the Cloud computing as compared to the traditional methods which makes it greener.

Many people in the IT Industry wants to know how cloud computing processes make business systems greener, so to answer this question, a case study was conducted by University of Applied Science, Upper Austria in which some great Scientists monitored the same and came to know that more than half of the carbon footprint is saved by a business by making use of the cloud computing solutions, particularly electronic invoicing.

This study reveals that the cloud delivers a two-point solution for really cutting down on traditional energy costs. Among these two points, first point solution is that business now move the invoice and other processes from the paper to the digital platforms which leads to the reduction in cutting down more trees by the businesses as now they are not in the need of paper which ultimately leads to more greenery across the world. Second point focus on making systems more effective and efficient by redistributing the hardware of the server and other resources.

From last several years, Cloud systems have grown as per certain models. Among those models, one is in which multi tenant systems offered by the cloud vendors which leads to the savings in the carbon footprint.

Instead of building the own server rooms and setup of the hardware, digital operations are outsourced by the company to the cloud. Vendor bears the energy costs incurred for the operations related to hardware and servers and the same structure is used by the vendor so as to serve more than one client. Security and accessibility to data are totally separate but the hardware may handle networking demands of the multiple firms at a same time.

The single client server rooms with the specific environmental controls and power draws are really inefficient. In 2011, Harvard Business review prepared a report on the same issue and Andrew Wilson who is a writer reveals that in few cases, less than 4% of energy of data centre will be processed and the most important portion among it goes to the idle servers.

He also suggest that carbon footprints are also reduced by the cloud in parts by doing several things like streamlining of the data centres and flattening peak loads with some strategies like virtualization, different scaling systems which reveals that there is no risk of data cross contamination.

ROB Bernard, chief environmental strategist of Microsoft offers a metaphor for the cloud services which are multi tenant. All the server rooms and structures of hardware which would be setup at all the places are now sourced at a specific location. It shows that it is very simple and easy to cool the systems and overall they are very energy efficient.

Due to the cloud, companies can really save the massive energy and with this vendors are also used which are most dedicated to the energy efficient operations.

Environmental concerns are plugging in to the business models by the cloud computing vendors and green cloud companies of today’s generation are sprouting up. For instance, GreenQloud, a data center service company at Seattle, Washington, in United States offers progressive stance on use of energy. A press release of the company in 2013 shows that it has its plans to offer renewable-energy-powered data center operations for the future. With this, it also reveals how company select the location for their data centres on the basis of the energy solutions which are sustainable and are available.

Cloud computing companies also offer services of private cloud for the individuals.

In all if cloud computing is used continuously it can lead to more greenery.

Difference between professional and free web hosting providers

To establish a business and for its growth, its online presence is must and to create the same, web hosting is required. It is vital for their perfect growth. There are so many Web hosting providers available in the market and among which who offer their hosting services at free of cost to their clients are considered as free web hosting providers and who charge fees from their clients for offering their hosting services are considered as professional web hosting providers.

As money matters a lot in the business and everyone needs it at every stage to run the business smoothly but everyone cannot afford the same, so some web hosting companies decided to offer their hosting services at free of cost. But there are particular types of clients or customers who avail the services of free hosting providers, for instance beginners or start-ups who don’t have enough money in their hand in the starting for investment, for them this is the good option. Same is with the business owners who start or have their business on the small scale and for the budding entrepreneurs also it is an attractive option as the cost associated with the hosting is eliminated here.

On the other hand, the multinational companies, the persons who are operating their business on the large scale and individuals having sound financial position are mostly the clients or customers of professional web hosting providers.

However, it is necessary that everyone who wants to avail the services of web hosting providers, they must understand the major differences between the professional web hosting providers and free web hosting providers.

• The first major difference between the two providers is the domain address they offered to their clients. Free web hosting providers offer a domain address which include their company’s name in the URL and by this professional image of the business or company also gets affected. And professional web hosting providers offer a personalised domain address which creates a different or unique identity for the online businesses.

• Professional web hosting companies are more reliable than free web hosting companies. Former one offers great uptime (99.9 percent uptime) as compared to the latter one which offers more downtime which leads to the loss of revenues, profit, clients and thus businesses.

• Unprofessional links and unnecessary ads display more on the free web hosting platform which leads to frustration. This platform is mainly used by the spammers so as to build dummy websites. On the contrary, professional web hosting platform do not display irrelevant ads and links and thus leads to higher ranking in the search engine and better online accessibility.

• Bandwidth and disk space matters a lot while choosing any web hosting plan. Professional web hosting providers allow their clients to select their best web hosting package containing the required amount of bandwidth and disk space among all the available plans which allows them to upload the images, graphics, text, maps and many more content on the site and also transfer them easily. And free web hosting providers offer bandwidth and disk space in a limited qty. which sometimes make businesses wait to modify the content of their website for the longer period. Such kind of issues is not experienced while using professional hosting services.

• Free web hosting platforms do not offer great level of customer service and technical support. The complicated websites which rely on Perl scripts, Myself Databases and PHP faces severe issues. On the contrary, paid web hosting companies offers 24 hrs customer service and excellent technical support via live chat, e-mail or phone. This leads to the peace of mind at the difficult time also.

Now after understanding the differences, one wants to know which companies offer professional hosting services and which companies offer free hosting services.

Some of the best providers which offers professional hosting services;

  • Hostgator
  • BlueHost
  • Rackspace
  • Softlayer
  • Amazon
  • Domain.com
  • Nethosting
  • Brainhost
  • UK2
  • Peer1Hosting
  • HostMonster
  • FatCow
  • 1&1 Internet
  • Single Hop
  • Just Host
  • GoDaddy
  • Inmotion
  • iPage

Some of the best providers which offers free hosting services;

  • Wix
  • Weebly
  • 000Webhost
  • Yola
  • Edublogs
  • Freehostia
  • Webs
  • Jimdo
  • 5GBFREE
  • Freehosting.com
  • Xtreemhost
  • Snappages
  • Zymic
  • Byethost
  • 110MB
  • Awardspace
  • Freehostingeu
  • 1Freehosting

At the end, I just want to say pay some money and enjoy great hosting exp instead of facing severe issues with free web hosting platforms.