Data Loss: An Unsolved Mystery
August 7th 2009 10:30
In Computing, data loss refers to the unforeseen, usually accidental, loss of data or information. It can happen due to several reasons:
Or a combination of more than one of the above
Studies have consistently shown hardware failure and human error to be two most common causes of data loss, accounting for roughly three quarters of all incidents.
Data loss must be distinguished from data unavailability, such as may rise from a network failure, although the two have substantially similar effects.
PREVENTING DATA LOSS
There is no guaranteed way to prevent data loss; however, the frequency and impact of the data loss can be lowered by taking proper precautions such as regular data backups, redundant storage(such as RAID), back up power supply (UPS), antivirus and firewalls, regular installation of security fixes and user education.
DATA RECOVERY
Lost data can often be recovered. There are Data Recovery service centers that recover data from the physically damaged media. It is a complicated process and carried under expert conditions. File system corruption can usually be repaired by the user or the system administrator with the right software tools comparatively an easier process however, many operating software provide the fixing tool
• Power failure, resulting in data in interim memory not being transferred into the permanent memory.
• Hardware failure, such as a head crash in a hard disk.
• A software crash or freeze, resulting in data not being saved.
• Software bugs or poor usability, such as not confirming a file delete command.
• Data corruption, such as file system corruption or database corruption.
• A harmful act, such as a worm, virus, hacker or theft or physical media.
• A human error, such as file deletion
• Hardware failure, such as a head crash in a hard disk.
• A software crash or freeze, resulting in data not being saved.
• Software bugs or poor usability, such as not confirming a file delete command.
• Data corruption, such as file system corruption or database corruption.
• A harmful act, such as a worm, virus, hacker or theft or physical media.
• A human error, such as file deletion
Or a combination of more than one of the above
Studies have consistently shown hardware failure and human error to be two most common causes of data loss, accounting for roughly three quarters of all incidents.
Data loss must be distinguished from data unavailability, such as may rise from a network failure, although the two have substantially similar effects.
PREVENTING DATA LOSS
There is no guaranteed way to prevent data loss; however, the frequency and impact of the data loss can be lowered by taking proper precautions such as regular data backups, redundant storage(such as RAID), back up power supply (UPS), antivirus and firewalls, regular installation of security fixes and user education.
DATA RECOVERY
Lost data can often be recovered. There are Data Recovery service centers that recover data from the physically damaged media. It is a complicated process and carried under expert conditions. File system corruption can usually be repaired by the user or the system administrator with the right software tools comparatively an easier process however, many operating software provide the fixing tool
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