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Posts Tagged ‘data recovery’

Data recovery or Datenrettung is the process by which the data is recovered from damaged or inaccessible storage media. Data recovery is done from storage media like CD´s, DVD´s, Floppies, Hard disks, Magnetic tapes etc. There are two reasons due to which the data becomes inaccessible. They are logical damage and physical damage to the storage media.

Physical damage to storage media can occur in many ways. Magnetic tapes can break, get crumpled or dirt may settle on the tapes. CD´s and DVD´s can have scratches or the metallic layer may get damaged. Magnetic heads in hard disks can crash or motors may fail. The floppy is notorious for failing frequently due to bending, overheating, cold, dust etc.

There are other reasons like fires, electrical surges etc that can cause data to become inaccessible or lost. There are many methods by which data can be recovered from magnetic media or optical media. The methods most commonly used are Magnetic Force Microscopy (MFM), Scanning Probe Microscopy (SPM), Magnetic Force Scanning Tunneling Microscopy (STM) etc.

In these methods a sharp magnetic tip is placed closed to the surface to be analyzed. It interacts with the stray magnetic field. An image of the data is generated and then repairs are carried out on logical damage and thus the data is recovered. Many companies carry out data recovery.

Logical damage is the damage to the file system. It is not physical but a software problem and also tells us that we need to be cautious and have a quality system for data recovery, datenrettung. It generally occurs due to power cuts, system crashes etc preventing file system structures from being written resulting in file system being left in an inconsistent state.

Logical damage is more common than physical damage. This may cause strange behavior like infinitely recurring file directories, loss of data, system crashes, hard disks reporting negative space etc. The end result is that the operating system cannot mount the file system.
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Have you ever wondered if what you know about data recovery is accurate? Consider the following paragraphs and compare what you know to the latest info on data recovery.

Sooner or later your company could become the victim of a natural disaster, or something much more common like a lightning storm or downed power lines.

Just because your company may be a small business doesn’t mean it’s immune to data disasters. If a small business does not have a good and tested disaster recovery plan in place when disaster hits they may never fully recuperate and it may even cause them to go out of business. Sometimes even a data recovery service is unable to be of any help.

Following are some questions that should be answered in order to give you some idea of what you need to do to that will help you if you do have a data disaster situation.

Do you know where your company’s most important data files are located?

Are these files being backed up and by what means?

How often do you run these data backups and are they verified and tested?

Do you have automated controls that correctly and on a consistent basis do the backups?

Do your data backup tapes go off-site and how often?

Do you have some kind of security against tampering or theft of your data backups?
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Booting issues, virus attacks, or corrupted file systems are very much present in any exchange or mail servers and can cause many of your archived email messages to apparently disappear. Companies which rely heavily on email communication and do not have back ups might find this a pervading problem. But data recovery designed specifically for email recovery can fix this problem.

Here are a few examples of data recovery steps in three of the most widely used email clients:

IncrediMail Email Data Recovery

• Select File | Data and Settings Transfer | Transfer from Old Computer… from the menu in IncrediMail email client.

• Click on the OK button.

• Click Open; then click OK.

• IncrediMail Email data recovery process will then start.

• Once done, a dialog box will appear, indicating that the data recovery process is finished. Click OK.

• IncrediMail will auto-restart to complete the data recovery process.

Outlook Email and Other Data Recovery

• Select File | Import and Export… from the Outlook menu.

• In the drop-down menu that appears, select Import from another program or file.
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The realization about the need to prepare for safeguarding crucial data on your hard disk may come a little too late when the computer or the hard disk has crashed. Data loss could mean, for a small business, going out of business unfortunately, sometimes permanently. Rebuilding years of data is out of question. It is pertinent to know the whys and hows of data loss in order to understand data recovery better.

Important Causes of Data Loss
What you hoped will not occur, perhaps because of no reason, could always hit you hardest unless you are safeguarded against them. Computer running slowly could be because of spyware scrupulously installed could be working behind screens to destroy or transmit data to their masters eventually causing hard disk to crash. Others like electric storms, power surges, mechanical failures, fires & floods and user errors (sometimes in disregard of warnings) could affect your computer without any or sufficient warning.

You could also loose data because of sudden but unintended deleting of files or programs. Accidental disk format, virus attack, partition loss are some more causes for data loss.
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