Data Recovery Facts
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The most important Data Recovery information
we could find. Our free impartial Data Recovery information is presented in a
concise and factual manner for easy reading. Summarized.org provides this Data
Recovery information as a free service. The Data Recovery information below
has been condensed to provide you with an opportunity to get a greater
understanding of Data Recovery in the shortest possible time.
Data recovery is the process of recovering data from primary storage media
when it cannot be accessed normally.
Data recovery may be required due to physical damage to the storage device or
logical damage to the file system that prevents it from being mounted by the
host operating system.
For example, opening a hard disk in a normal environment can allow dust to
settle on the surface, causing further damage to the platters.
Furthermore, end users generally do not have the hardware or technical
expertise required to make these sorts of repairs; therefore, data recovery
companies are consulted.
Logical damage is primarily caused by power outages that prevent file system
structures from being completely written to the storage medium, but problems
with hardware (especially RAID controllers) and drivers, as well as system
crashes, can have the same effect.
This can cause a variety of problems, such as strange behavior (e.g.,
infinitely recurring directories, drives reporting negative amounts of free
space), system crashes, or an actual loss of data.
Various Data recovery programs exist to correct these inconsistencies, and
most operating systems come with at least a rudimentary repair tool for their
native file systems.
Linux, for instance, comes with the fsck utility, and Microsoft Windows
provides chkdsk Data recovery.
The second technique for Data recovery is to assume very little about the
state of the file system to be analyzed and to, using any hints that any
undamaged file system structures might provide, rebuild the file system from
scratch.
While most logical damage can be either repaired or worked around using these
two techniques, data recovery software can never guarantee that no data loss
will occur.
