Archive for the ‘Data recovery’ Category

New standards for data recovery

Tuesday, November 4th, 2008

Data recovery is a serious issue which is concerned about the significant loss of data. With the number of companies introducing several data recovery software, it is necessary to set the standards for data recovery. Drivesavers takes the responsibility of setting the standards for data recovery software. You need to go for professional data recovery companies if you want to recover the data which you cannot afford to lose. Drivesavers is more concerned about providing professional data recovery services and it has invested a lot of time and money in developing recovery standards. Using these standards, the customers can evaluate the services provided by the professional data recovery companies.  

To know more about the standards, go here

Share/Save/Bookmark

Typical errors of hard drives!

Wednesday, August 27th, 2008

It is a well-known fact that laptop or computer is a beautiful blessing of technology. Data is today the survival for all whether large enterprises, small business or individuals. We all have data stored in our Hard disk. Hard disk is also an amazing gift of technology, which is capable of storing thousands of gigabytes of data. Have you ever wondered what would happen if you suddenly lost all your essential data. Although the advances are being continuously made in the field of reliability and performance, you still encounter problems with hard disks. Are you aware of the common problem that occurs with hard disks?

Hard disk errors are shocking when they take place as they not only cause loss of data but they lead to even more loss. The typical hard disk errors are missing files and file corruption errors. In addition, the other major hard disk error is any physical damage to the drive. If your hard disk have scan disk launching, then you can easily the built in tools to troubleshoot the errors. Scan disk helps in rebooting your computer after an error has occurred. It checks the errors in drive and repairs them automatically. Scan disk scans the folders and files for errors, bad sectors, lost clusters and repair them automatically.

There are numerous problems, which can occur with hard disk drives (HDD). These problems can be classified as physical or logical problems.

  1. Physical problems are failures on the part of the HDD itself and they could be identified with the sounds made by the HDD.
  2. In case of logical failures, the data on the disk may have been corrupted. A vast majority of HDD failures are software related.

Some typical problems that occurs in case of logical failure are

  1. Master boot failure
  2. Boot sector failure
  3. Accidentally deleted data
  4. Cross Linked files
  5. Bad Sectors

Physical failure is classified as

  1. Electronic failure - This is due to the controller board of the HDD. The HDD will not spin when powered on.
  2. Firmware failure  - Here the HDD will powered on but will not be recognized by the computer
  3. Mechanical failure - This failure occurs on the physical HDD itself. Whenever an internal component becomes faulty, data on the HDD will become inaccessible.
  4. Logical corruption - These errors can be simple or can be complicated too. These errors can range from a simple error that is an invalid entry in the file allocation table to a horrifying error that is loss and corruption of system file on a brutally fragmented drive

However, not all failures or errors are predictable. Even a normal use can cause a breakdown in the fragile device. So, it is essential that the user should keep a back up of the data on another storage device on periodic basis to avoid any horrifying data loss situation. Although it is possible to recover data through other means but that process can cost you much and can put a stress on your budget. No one can guarantee that total data loss will be recovered so it is better to keep a back up of the essential data

Share/Save/Bookmark

What is data recovery?

Tuesday, August 26th, 2008

Whether it is your personal files or large-scale enterprise applications computer needs to store information. This information, popularly known as data is stored as bits and bytes on various media.

Data can be stored in many ways like removable disks, hard drives, pen drives, DVDs or CDs etc. Though these storage products are reliable, at any time of the day or night an electronic or mechanical device can fail to function in a proper way. In addition the term could be used also for forensic analysis, there are cases where you many need to recover inaccessible or lost data for example a forgotten password or a file deleted intentionally by cyber criminals . At times, the storage devices become physically unusable due to disaster like fire, flood or any other means. Thus, data recovery process is used for recovering the data in a safe and reliable manner in the case when normal means of accessing data fails.

In majority of the cases, data recovery is an easy process but in a few cases, an exhaustive and detailed analysis may be required to recover the data. Physical damage will at times results in data loss and logical damage needs to be corrected since it may result in inaccessible files or corrupt files.

Logical damages normally occur due to spike burst in the voltage supply or power outage, which will result in your file to be incompletely written. Occasionally hardware problems are also the reason for logical file problems. For example, consider the case of the HDD driver controller failing and data not be written to the file system.

Logical data recovery is much simpler and not much skill is required. Today most operating systems provide tools for recovering and correcting logical file problems.
There are two popular methods for recovering logical files

  • Data consistency checking

In case of consistency checking you, scan the HDD or a storage media to check and ensure that there are no CRC errors

  • Data carving

This technique is used for recover of data from a storage media where there is no information on the file system.

In case of physical recovery popular ways to achieve recovery is

  • Repair of the hardware

You could replace a few parts of the HDD to get the HDD working again in the process recovering the data

  • Disk Imaging

Using Disk Imaging, you can reconstruct the original file system

It is therefore seen that in the case of physical recovery you need to take the help of professionals who are well trained to perform data recovery operations.

You should know that not all data is recoverable.

If you have tried to use the tools provided by the operating system and still not achieved success do not panic.  Try getting in touch with a professional.

You should try to calm yourself down as the technicians and service representatives who will help you in recovering your data must have recovered data earlier and have considerable years of experience. They will help you in gaining confidence in recovering your lost data and will ensure that no further loss of data occurs.

Some ways to ensure that no data is lost is to take a backup of you data on a daily basis. Also, ensure to use surge protectors and UPS in your premises.

Share/Save/Bookmark