Data recovery is a real science and has been around for decades it spurred a new Information technology industry just solely based around the art of recovering data. So what in a nutshell is Data recovery, it is a process in which there is an attempt made to recover data stored either in databases or other storage systems such as a hard drive. There are several ways to recover data and many tools such as Hard drives, Floppy disks, memory cards as well as CDs and DVDs. The most common type of recovery is from a hard drive.
There are numerous reasons why there would be a need for data recovery some of them even include natural emergencies such a fire or flood where data may have to be salvaged from damaged media stored on hard drives or magnetic tapes and disks. Then there is the common problem of data that has been accidentally deleted or when creating a partition Deleted data recovery is commonly thought to be unrecoverable but as computer forensics have shown this is not the case, in fact there are now sold over the counter software solutions for this problem.
Hard drive recovery happens during the repair of a failed drive. The first step is to transfer the data to another storage system, this can be a CD, DVD or even another hard drive there is some very good software available to help facilitate this. The recovery of data can be expensive when computers fail so it always pays to have backed up your data on a secondary storage system before this occurs.
Physically damaged hard drives need to be repaired in a clean environment. Physical data recovery from a drive that has failed mechanically may not need any subsequent logical reconstruction if it can be successfully repaired, though in practice many physical repairs are followed by logical reconstruction if some data is permanently lost due to damaged disc surfaces.
A hard drive operates so that data is written onto the top and bottom of each disk surface by a separate recording head. So a hard drive with three disks will usually have six separate recording heads three for the top and three for the bottom surface. Now in a hard drive there are read and write heads when a read head fails this will cause the data to be unreadable even though it has not moved elsewhere or been deleted. Data recovery from a hard drive is the process of extracting data from damaged, failed, corrupted, or inaccessible primary storage media when it cannot be accessed normally.
There are much simpler cases when data may need to be retrieved some examples of this are forgotten passwords, Data stored using obsolete storage techniques that can’t be read by some new technologies. There are as many ways of dealing with the problem of restoring lost information and not all techniques work with different situations. The age-old adage applies “when in doubt ask” but with a proviso ensure the person you are asking is truly knowledgeable in this field.
Got a Question? Ask.
Ask the community a question about this article:
Q&A Powered by:
Latest Education Articles
Movado: Sports Edition Watches - Sports Yet Luxury Watches
By: Joseph Levy | 06/09/2008
Since 1981, the highly popular Sports Edition collection has played an important part in fashion, business and in the lives of the professional athletes. Movado maintains a very strong connection with the sports world.
The Various Types Of Student Loans
By: Paul Hata | 05/09/2008
There are three types of loans that are commonly found for college students. They include federal student loans, federal plus loans, and private student loans. Each type of loan has advantages and disadvantages that are unique to that particular loan.
Advantages And Disadvantages Of Associate And Bachelor Degrees
By: Paul Hata | 05/09/2008
Regardless of whether a two-year degree or a four-year degree is in your personal best interest at the moment neither are a waste of time or effort. I hope that you will eventually seek a four-year degree, as this will give you a competitive edge in business, however, even the smallest improvement in your education level can mean big changes over the course of your lifetime.
The Benefits Of Community Colleges
By: Paul Hata | 05/09/2008
Add to that the fact that most community colleges offer very flexible class scheduling and even some courses online and you will find that there are many reasons to consider community college that go well beyond mere budgeting requirements.
Why Should You Get A College Degree
By: Paul Hata | 05/09/2008
There is no wrong reason to get an education. Even if you are applying for a job that won't use your specific degree, you might find that having a degree at all gives you a boost over other applicants for the same position.
How To Be Eligible For Scholarship
By: Paul Hata | 05/09/2008
If you're planning to go to college with a scholarship, you must familiarize yourself with the different requirements, how to go about your scholarship application, avoid scholarship scams, get a good help with scholarship essays, and see featured scholarship programs especially on the net.
Continuing Nursing Competency
By: ROBYN KNAPP | 05/09/2008
For those student nurses who are about to graduate, their main priority is to pass the NCLEX-RN examination. The practice of nursing is regulated according to licensing authorities in each state jurisdiction.
Each jurisdiction must ensure that each nurse has the minimum competency to practice nursing in their state. In order...
Nursing Entrance Test, Test Anxiety and Stress
By: ROBYN KNAPP | 05/09/2008
What is the Nursing Entrance Test? The test evaluates areas that are essential for academic success including basic math skills up to beginning algebra and reading comprehension. The Nursing Entrance Test must be passed with a score that is dictated by the community college or university. Some nursing schools require...
More from Wilf Staton
How to Customise Your Iphone Ringtones
By: Wilf Staton | 28/05/2008 | Communication
Must see information on Apples Iphone. This is the where too and how too guide. Personalize your Iphone with Free ringtones.
How to Customise Your Ringtones
By: Wilf Staton | 27/05/2008 | Communication
Have a fantastic time creating personal ringtones for all your friends, It is absolutely great fun. Most all of my cell phone contacts have their own individual ringtones.
Laser Welding Ins and Outs You Don't Know
By: Wilf Staton | 22/05/2008 | Science
Laser welding plastics is a fairly new process. It super heats the polymer without physical contact. Most applications processes are done by ,directing the beam of infrared light. Directly at the weld joint.
Livescores How to Get Instant Up to Date Info
By: Wilf Staton | 15/05/2008 | Communication
A specialized sports site can not only provides news, scores, and events, but many also offer various types of online contests to its viewers. By book marking these
sites in your favorite browser you can get up to date information about how the teams and players you support are progressing.
Pancreatitis Remedies
By: Wilf Staton | 13/05/2008 | Health
Pancreatitis is the inflammation of the pancreas. It can either be considered as acute or chronic depending on how mild or severe the pain and the damage in the pancreas is. Fortunately, just like any other health conditions, there are also several ways on how to treat pancreatitis
Pancreatitis Diet Tips and Information
By: Wilf Staton | 13/05/2008 | Health
The pancreas is a special gland that is essential in the process of digestion. Without the help of the pancreas, the food that you intake will be used by the body properly. This is because the enzymes secreted by the pancreas are the ones responsible in digesting the fats, the carbohydrates, and proteins into something that can be absorbed by the body
Treating Acute Pancreatitis With a Healthy Diet for Pancreatitis
By: Wilf Staton | 28/04/2008 | Health
A diet for pancreatitis is one that is high in carbohydrates and low in fat. A pancreatitis diet should also include smaller, more frequent meals. A doctor may prescribe pancreatic enzymes to take with meals if the pancreas does not secrete enough of its own.
Why Long Term Care Insurance is Essential
By: Wilf Staton | 25/04/2008 | Health
Long-term Care was introduced during the 1970s as a specialized form of nursing home insurance, Since then long term care insurance has since been expanded
to cover a more diverse range of services and caters to people of any age. The large majority of people requiring long-term care are still over the age of 65 years
but more and more younger people have realized the necessity to have extended health insurance.
Education 
