Yuva Pratibha Scholarship Exam

Yuva Pratibha Scholarship Exam

Understanding Virtualization

What is Virtualization?

Virtualization allows companies to run multiple operating systems and applications on one piece of hardware, maximizing computing resources in terms of cost-effectiveness, efficiency and performance. It is achieved by virtually separating the physical hardware from the operating system, thus allowing multiple operating systems to run side by side on the same machine.

Benefits of Virtualization

1. Save money on hardware - Virtualization consolidates multiple systems onto one piece of hardware and allows system upgrades to occur on your existing hardware with no downtime; therefore, when upgrading your systems, the costs associated with buying new hardware and downtime during upgrades are eliminated. 

2. Keep your customers happy  - Allows you to deliver more to your customers while gaining control of your IT costs by eliminating downtime and maximizing the efficiency and speed of your server and client systems, and consolidation of your hardware. 

3. Enhance your organization's IT security - You can keep your data separate while still existing on the same machine. This means important corporate data can be kept completely separate from end-user data; or even keep all of your end-user data separate from one another. However, while this data is organized separately, it is still stored on one piece of hardware.

4. Keep your company running 24/7 - Provides continued operation during maintenance periods, and rapid recovery in unplanned outages. So no more business downtime and loss of revenue.

5. Re-use existing hardware - With a virtual network you are able to upgrade your company's IT systems without having to necessarily upgrade your hardware. Also, by running multiple systems on one piece of hardware you are able to utilize the capability of each piece of hardware to its fullest extent, instead of wasting money on idle hardware. 

6. Reduce your energy consumption - The ability to run multiple operating systems and applications on one machine reduces the amount of hardware you need, thus reducing the amount of heat generated and energy used by your network.

7. Have your resources available where and when you need them - Stores your resources in an aggregate pool and enables you to pull them when you need to, and where you need them as necessary. 

8. Improve your scalability - Growth is an important initiative, but it can be difficult when it comes with high IT costs to upgrade and meet your growth demands. Virtualization allows you to re-use your existing hardware, and easily add-on new applications and hardware to your current environment -- as and when you need to grow. With a virtual network, you no longer need to plan for huge budgets to implement that complete overhaul of your IT infrastructure! 

Background of Virtualization

Virtualization first came on the scene in the sixties with the coining of the term "time sharing." Around that same time, IBM Watson Research Center started a project called the M44/44X Project. The work involved testing this "time sharing" concept where virtual machines (44X) were created to image the main machine, the IBM 7044 (M44). Soon after came the virtual machine monitor (VMM) giving the ability to create multiple virtual machines, each instance capable of running its own operating system.

Some estimates say servers typically operate between 15% and 25% of CPU capacity. With virtualization, that could be improved dramatically, up to 80%.

It doesn't take an accountant to understand the cost savings in the process, whether getting the most from your hardware or reducing expenses in storage, space, hardware and utilities; not to mention simplified administration and increased reliability across consolidated servers and multiple operating systems.

On March 14, 2006, Red Hat announced a strategy called Integrated Virtualization, working together with AMD, Intel, Network Appliance and XenSource, as well as actively collaborating with the open source community. This goal is to create a virtualization environment and simplify deployment for customers.

Checking CPU Support

To run full virtualization guests on systems with Hardware-assisted Virtual Machine (HVM), Intel, or AMD platforms, you must check to ensure your CPUs have the capabilities needed to do so. 

To check if you have the CPU flags for Intel support, enter the following: 

grep vmx /proc/cpuinfo  

To check if you have the CPU flags for AMD support, enter the following: 

grep svm /proc/cpuinfo

Dinesh Arya a student of HCL CDC Janakpuri found Big Activation Bug in WinRAR latest Version

Dinesh Arya a student of HCL CDC Janakpuri found Big Activation Bug in WinRAR latest Version

WinRAR_4Beta6

WinRAR is the latest version of WinRAR enterprise . WinRAR is a shareware file archiver and data compression utility, WinRAR is a must-have in any modern-day PC toolkit. This application not only includes support for extracting virtually any kind of file compression format, it also boasts a no-nonsense approach to reducing file sizes..

But beside these features, big "Activation Bug" WinRAR by Dinesh Arya a student of HCL CDC at Janakpuri Centre.

A shocking bug has been occurred at Janakpuri's HCL CDC in aspect of WinRAR activatation, Dinesh Arya a student of HCL CDC Janakpuri centre found activation bug WinRAR. He believe that, he could cracked the WinRAR latest version on front of any one. It seems WinRAR Corporation a big giant for Software Development and they needs attention and improve their software security.

 

 

 

 

 

 

 

 

 

 

 

 

 

Dinesh Arya - Student HCL CDC Janakpuri

Backup & Restoration in Windows

Backup & Restoration in Windows

HCLCDC Janakpuri has conducted a seminar based on  Backup & Restoration in Windows that would help in Hardware Networking as well as in Software.
Introduction the Backup Utility:-

Windows Provides the Backup OR Restore Wizard,which allows you to easily backup data.You can use the backup OR restore wizard to backup data manually or to schedule unattended backup jobs on a regular basis.You cam backup data to a file or to a tape. Files can be stored on hard disks , removable disk and recordable compact discs and optical drives.It also provides access to the Automated System Recovery wizard to take the backup of Operating System.

Planning Issues for Backups & Restoration:-
Providing Fault Tolerance & Recover the DATA from Software Trade
Determine which Target Media to use for storing backup data
Determine whether to perform network or local backup jobs
Using the Automated System Recovery Wizard
Preparing for Disaster Recovery
Backing up Data
Scheduling Backup Jobs
Restoring Data
Configuring Shadow Copies
Recovering from Server Failure
Backup Device's

Mr. Manoj Sehgal

Best Trainer in the month of July 10 on All India Basis

RHCE Certfication Examination

RHCE Certification Exam held successfully at HCL CDC Janakpuri

As the journey of success continues, HCL CDC Janakpuri again delivered best in the field of IT professionals. RHCE Certification Examination held on 28-Aug-2010 & 28-Sep-2010 & successfully completed at HCL CDC Janakpui Centre.In this examination 70% students has archived 100 out of 100.
Two exams were conducted, they are:
1. RHCT
2. RHCE

Seminar on Windows XP SP3 Installation through USB Flash Drive

Windows XP SP3 Installation through USB Flash Drive

The USB flash drive is now ready to install XP to any hardware that is supported by the Windows XP CD. However there are some minor modifications, while installing Windows XP. The speed at which Windows XP installs using USB stick is MUCH faster than installing through an optical drive (CD/DVD). During installation it gets boots from the USB flash drive, and it will show two options:

1.GUI environment

 2.Text Mode
Choose the Text Mode option first. Now you will see initial screen of Windows XP installation as similar shown by an optical drive. Now Just follow the on-screen instructions as shown. Now after that all goes through and the PC restarts, simply chose the GUI option on the menu and let the Windows XP install as it normally does. While installation DOES NOT REMOVE the USB stick until it passes the setup stage. Once you have just booted into Windows XP for the first time, you can go ahead and remove the USB stick. Congratulations! You have just installed Windows XP without using any optical drive. The benefits of installing Windows XP from USB are plentiful; you need not require scratching your optical drive again. This will help you all to reduce the amount of time spend to install Windows XP as before. One can also repair the existing operating system through this pen drive in case of Any disaster happened to OS.