Search Results

Keyword: ‘virtualization’

Why the Value of Certifications Can Drop

Sunday, December 13, 2009 7:56 am SMallard Leave a comment

In a technology driven world, IT Professionals are defined by certifications, skill and worker ethics.  Certifications are designed to give ranking to IT Professionals.  With a collection of simulated exams that are too close to the real exam, the real exams lose value and respect in the IT community.  I’ve watched people test and come back to a testing center continuously and hold up their final exam to say they are an ‘Engineer’ in a highly respected area of expertise, yet as they hung around for a lecture, they didn’t know the basic fundamentals of SNMP, Telneting, CIDR, Domain policies, basic security information or about virtualization.

Certifications are earned through hard work, studying and ‘hands-on’.   The motivation behind getting as many as you can in the past involved promotions, salary increases and time in the field.    While many young IT Professionals ‘think’ they know it all, an old IT dog like myself will tell you that it is impossible to know it all.   Information Technology is changing daily.  Daily.   Hmmmm.  Hourly.

Companies promising Cisco or Microsoft in a week or two are looking for candidates that pay extraordinary amounts of money and who can memorize an exam.   These boot camps should be limited to IT personnel who have worked in the field for a certain amount of time.    Exams should also be limited for students who have ‘x’ amount of time in a classroom and lab.   Where we teach topics that have certifications, students spend 432 hours in the classroom and labs at a minimum before the first exam.   More advanced exams that are layered (curriculum that overlays) on these certifications usually result in the student spending two to three times this amount of time in the classroom and labs before earning a second or third exam.

I’m not saying our methodology of teaching is better than others, I’m saying that their is a big difference in the quality of a candidate from our classroom and other places that have the same practice compared to facilities that have students memorize exams.   Our students even in this economy have been acquiring jobs with large corporations and the government.    I do believe the value of their certification is greater than someone who has memorized an exam.  Not only is it an understanding of the materials, it is the ‘hands-on’ that makes a candidate stand out.

IT Managers have their work cut out for them when hiring from a pool of ‘certified’ individuals.

VMWare’s Virtual Appliances List

Friday, December 11, 2009 1:15 am SMallard Leave a comment

VMWare’s list of Virtual Appliances appear to be endless.  With over 1300 applicants available, VMWare’s list gives technical details and download information for these solutions.  Virtual appliances allow often turnkey solutions for businesses.

So what is a virtual appliance?  Virtual appliances are solutions (OSs, databases, storage, and other applications) that operate in the virtual infrastructure of an organization.   In layman terms – a pre-built pre-configured software application for virtualization that includes the operating system.

So if you download VMWare, setup a server, download a set of files (Virtual Appliance),  power on your virtual device, and the application is instantly available for use.

  • Virtual appliances can be moved from one VM to another without impacting the user.

An example of this includes a SDK for Amazon’s which is a web service that provides re-sizable compute capacity in the cloud.  This application is used to interface with Amazon’s EC2 service.

Or Moodle the Online Learning Management System that major colleges and companies use for training is another great example of a turn-key solution.  Moodle is easy to set up and use allowing  you to create courses and technology that goes above and beyond the needs of colleges world-wide.  This version is Ubuntu based and gets security updates automatically.  Here’s a small list of universities that use Moodle.

  1. University of California, Irvine  http://learn.uci.edu/cms/
  2. University of Georgia   http://cantor.english.uga.edu/moodle/
  3. Texas A&M University   https://maysportal.tamu.edu/
  4. MIT Teacher Education Program   http://education.mit.edu/moodle/
  5. Ohio State University Math Department  https://webwork.math.ohio-state.edu/moodle/
  6. Iowa State University  http://tesl.engl.iastate.edu/courses/
  7. Orange Coast College (well-known in California, where I am)  http://occmoodle.occ.cccd.edu/moodle/moodle/

and of course we do….

Bottom-line?   Companies are buying large servers with tons of disk-space, memory and other resources and then loading VMWare or other virtualized server software onto these servers and loading appliances creating more servers for their organization that use less space, less energy, can be managed on one physical machine and have  turn-key applications (Virtual Appliances).

How about a list of Linux based turn-key solutions?  Network Area Storage,  Domain Replacement, Joomla, Moodle, MySQL and more.

The Ten Must Have Virtualization Tools

Wednesday, December 9, 2009 12:24 am SMallard Leave a comment

Virtualization is becoming easier yet more complex.  NetworkWorld list 10 of the ‘must have’ tools.  Link

Also check out NetworkWorld’s list of Desktop Virtualization.  Link

Windows 7 and Ubuntu – An Excellent Combo

Thursday, November 12, 2009 9:35 pm SMallard Leave a comment

Any IT professional or student should study Linux.  A perfect marriage to begin working with Linux is Ubuntu, VirtualBox and Windows 7.  Working flawlessly together,  Windows 7’s stability along with VirtualBox allows you to work with Ubuntu and to begin to learn the very basics of Linux.

With LinuxSurvival.com (learn basic commands) and the various flavors that are on the web, Linux will eventually come through and begin to compete heavily with Windows.  A mixture of Windows and Linux will land in the workplace quicker than ever.   Because of the Ubuntu project, more and more average users can do a basic installation and use this OS.

Setting Up Final ubuntu startup

Windows 7 and Ubuntu

 

Windows 7 with Ubuntu and Server 2008

More information on VirtualBox -

What is a Virtual Machine?

VMWare

VirtualBox

Microsoft Virtual PC

Microsoft’s Virtualization Website

Windows 7 Beta – Installing and Testing on VirtualBox

Installing Windows 7 on Virtual PC vs. VirtualBox

How to Network Virtual Operating Systems in Sun’s VirtualBox

Answers to Licensing Questions for Sun Micro’s VirtualBox

How to Optimize VirtualBox on Your Windows PC

Learn How to Set Up USB and Networking Options in VirtualBox

How To Connect to VirtualBox using Remote Desktop Connection

VirtualBox Configurations for running Three Operating Systems on a PC

VirtualBox: How to Expand Your Servers with Virtualization

VirtualBox on this Blog.

Ubuntu

Virtualbox 3.0.6 Review

Saturday, September 12, 2009 6:31 pm SMallard Leave a comment

Sun Microsystems Virtualbox 3.0.6 is the latest virtualization application from Sun.   Computer users are beginning to see the development and use for multiple operating systems on a single computer.  In today’s world cloud computing and virtualization are two of the fastest growing technologies.  VirtualBox supports Linux, MAC and Windows.

Benefits of Virtualization

  • Power Cost Savings
  • Hardware Cost Savings (Multiple computers on a single physical computer)
  • Development of applications (Running Server OS on Client OS)
  • Quick Recovery Time (recover vdis allowing users to return an operating system in minutes)

Features of 3.0.6

  • Browse your virtual machines and inspect their settings (Remote Desktop)
  • Start virtual machines in headless mode
  • Pause/resume VMs
  • Save the state of running VMs
  • Terminate VMs (hard power off or ACPI)
  • Remote control your VMs using the integrated RDP Web Control
  • Multiple processor support (32 – Growing – Currently 64 bit supports one processor only)
  • Shared Folder Support
  • USB Support
  • Multiple Networking Features
  • 3D Graphic Support

Installation

The installation of VirtualBox is fast and easy.  You should take into consideration the amount of RAM on the host computer including hard drive capacity and CPU speed.  The installation of 3.0.6 was on an HP Pavilion Laptop with 3GB or RAM, 160 GB Harddrive powered by a dual core AMD 2 Ghz processor.  This independent installation reviews the install of Microsoft’s Windows Server 2008 committing 25 GB for hard disk space and 1 GB of RAM.

The installation of an operating system onto the VirtualBox application reguires being familiar with common settings of operating systems and having the ISO or DVD of the other operating system.

By clicking on New, you are walked through an excellent wizard that guides you through the basic setup of the operating system you are installing.   During this walk through, it is important to give yourself plenty of hard drive space for growth and a balanced amount of memory to keep your host computer and virtual computer responsive.  (You can adjust these settings later)   An added benefit is when testing beta software (OS), you can later begin to take away or add to memory to test the computer’s responsiveness.

Installation of VirtualBox
VirtualBox OneVirtualbox Two

VirtualBox ThreeVirtualBox Four

Installation of Windows Server 2008

VirtualBox Wiz OneVirtualBox Wiz TwoVirtualBox Wiz ThreeVirtualBox Wiz FourVirtualBox Wiz Five

Settings

Ready for SettingsSettingsSettings OneSettings Two

Virtualbox makes it easy to select your settings.  One of the most important areas is the number of processors, USB (add a filter to use USB on the Virtual Computer), Networking and pointing to the ISO or DVD in order to load the operating system.

Operating System Loading/Loaded

To use the mouse, click on the Virtualbox screen (it will then be captured).  To release it, hit the right ctrl key.

Loading OSWindows 2008 LoadingWindows 2008 Loading HDWindows 2008 Loading Files

Server 2008
Notes:  Follow the installation recommendations for the operating system you are installing.  You must protect virtual computers with updates, firewalls, correct permissions and anti-virus software.

VirtualBox is by far the best free virtualization program on the internet.  VirtualBox allows you to take computing to a new level by offering the technology that allows you to expand your network at a minimal cost and to use virtualization for servers, compatibility with other operating systems and to research different operating systems before they hit the market.   VirtualBox is hands down an excellent application for home and enterprise users.

How Powerful is 7

Resources

What is a Virtual Machine?

VMWare

VirtualBox

Microsoft Virtual PC

Microsoft’s Virtualization Website

Windows 7 Beta – Installing and Testing on VirtualBox

Installing Windows 7 on Virtual PC vs. VirtualBox

How to Network Virtual Operating Systems in Sun’s VirtualBox

Answers to Licensing Questions for Sun Micro’s VirtualBox

How to Optimize VirtualBox on Your Windows PC

Learn How to Set Up USB and Networking Options in VirtualBox

How To Connect to VirtualBox using Remote Desktop Connection

VirtualBox Configurations for running Three Operating Systems on a PC

VirtualBox: How to Expand Your Servers with Virtualization

VirtualBox on this Blog.

WordPress articles on VirtualBox and Virtualization

Cloud Based version of Microsoft Office

Wednesday, August 5, 2009 10:57 pm SMallard 1 comment

For the last several months, I have tried not to troll and ‘copy’ my fellow bloggers.  Being in an educational institution, the resource of information that comes from these industry experts has to be recognized.  Our school stays ahead of the industry and loads beta operating systems, virtualization, software that is state of the art in CAD, Drafting, Business Systems, Machine Tool, Industrial Maintenance and other programs.

Once again Rick has a great article that is being forwarded to both our Computer Information Technology (CIT) programs and Business Systems Technology (BST) programs.  Rick reviews and discusses -

A FREE cloud based version of Microsoft Office is coming…

Rick did you ever think you would be contributing to the future of students?  Once again thank you. – Steve

VirtualBox 3.0.0 Released – Supports up to 32 processors

Thursday, July 2, 2009 11:13 pm SMallard Leave a comment

With guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only), VirtualBox 3.0.0 released earlier this week, produces more processing power than ever.  With this update alone, computers with dual or quad core processors makes Sun’s VirtualBox the most powerful virtualization software applications available.  With dozens of fixes and improvements, VirtualBox is an ideal software to host an additional operating system on a host computer.

CPUs

VirtualBox CPU support

Identify Your Processor for Virtualization

Sunday, May 10, 2009 10:49 am SMallard Leave a comment

Intel’s program  Link

AMD’s program Link

And my processor…

happysteve

HP Laptop Getting Hot? Updated with Picture.

Sunday, May 3, 2009 10:43 am SMallard 4 comments

My little HP dual core laptop has been getting hot.  Well, after writing an article on Bright Hub and experimenting with the power settings, here’s why.

The Power settings in Windows adjust the CPU speed in laptops.  The higher the speed, the more power it consumes and the hotter it gets.

So if you set this HP Pavilion tx1217d to Balanced or Performance,  Performance  will run the CPU at its full processing power and creates a lot of heat.  (This heat appears to be extreme – almost burning your lap – soft things like pillows to put on your lap are out!)  With balanced, the speed of the CPU varies (decreases and  increases) and the heat  increases  BUT performance varies greatly!  Exactly what it was designed to do (adjust CPU speed to balance power consumption)

If the Power Saver option is selected, the CPU decreases and so does the heat.  In a nutshell, if you want your laptop’s life expectancy to increase, you’ll have to elect to use this option.  I’m all about going green but my CPU runs at 1.2 Ghz less and the laptop is slower (Good thing it is a dual core).  I don’t want to tolerate the heat (the fan runs all of the time and again the heat is extreme) but may have to when using Virtualization.  HP should somehow fix this cooling issue (I’m sure it is the hardware).

power-options power-options-balanced1 /

power-saving1 performance-setting

Here’s a picture of the laptop’s temp with one inch clearance for cooling…..

Virtualization in Windows 7?

Tuesday, April 28, 2009 9:31 am SMallard 1 comment

I’ve been impressed with Windows 7.  Really.  Rumors on the web show that Windows 7 will have a virtualization mode you can download for free and you can virtualize XP and use those applications you just can’t let go. Link

Cloud Computing – Computers online for everyone

Monday, April 13, 2009 9:20 am SMallard 1 comment

I’ve reviewed Airset and G.ho.st cloud computing and I will soon review iCloud , Glide OS 3.o,  and eyeOS.  Just like virtualization, Cloud Computing is making its way into our lives everyday.

These free sites offer paid subscriptions for larger storage.  Check these out and find out how they may benefit you.

Why Virtualization is Gaining Momentum

Friday, April 10, 2009 9:52 pm SMallard Leave a comment

Why Virtualization?

Virtualization is gaining momentum with information technology professionals because of the ability to install more than one operating system on an individual host computer.  With hardware becoming less expensive, this type of computing is gaining momentum because of the economy, space and consolidation of resources.  With tighter budgets, this is an ideal way to consolidate servers, save on cost with both hardware and making green computing become a reality.

The global economy is making companies leaner.   Information technology professionals need to be both versatile and have a well rounded accelerated education.  With technology growing faster than any individual can learn,  individual IT personnel will need to learn ‘on-the-fly’ and network with other professionals in order to grow in this industry.

Students and professionals in information technology classes will find that virtualization allows them to learn at an unprecedented pace.  It allows multiple operating systems to be used.  With diverse industry, these students and professionals could be exposed to any many different operating systems.

Advantages

Virtualization allows both programmers and system administrators to test and design networks without the need of having  extra computers available for testing.  Virtualization used in production computers with remote desktop allows administrators to control and configure servers or operating systems without changing computers.

What Programs are Available?

There are a multitude of programs that are available to virtualize operating systems.  Generally I have focused on VirtualBox and Virtual PC.  These programs are free and readily available on the internet. 

Who should use Virtualization?

Students, Business Professionals, Home Users and Businesses.  Students can learn different operating systems and learn how to network and test networking and programs, Businesses can use this in production to save cost with hardware and energy.  Home Users can  use virtualization to learn new operating systems or install a new operating system before upgrading. 

Monitoring Resources

It is critical to monitor and use resources carefully in the design and implementation of virtual computers.  Hard drive space, memory and CPUs are critical in the operation of virtual computers.  These primary resources determine the performance and availability of virtual computers.

Resources

What is a Virtual Machine?

VMWare

VirtualBox

Microsoft Virtual PC

Microsoft’s Virtualization Website

Windows 7 Beta – Installing and Testing on VirtualBox

Installing Windows 7 on Virtual PC vs. VirtualBox

How to Network Virtual Operating Systems in Sun’s VirtualBox

Answers to Licensing Questions for Sun Micro’s VirtualBox

How to Optimize VirtualBox on Your Windows PC

Learn How to Set Up USB and Networking Options in VirtualBox

How To Connect to VirtualBox using Remote Desktop Connection

VirtualBox Configurations for running Three Operating Systems on a PC

VirtualBox: How to Expand Your Servers with Virtualization

VirtualBox on this Blog.

WordPress articles on VirtualBox  and Virtualization

I have written several articles on virtualization.  These articles discuss the how-tos on installation of different operating systems and applications.  Because virtualization is gaining momentum and becoming an important part of computing, students should take Microsoft’s DreamSpark and Linux resources and use them to gain a working knowledge of this important change in information technology.  Technology will not wait on you.