20161130

Data Recovery: Files Lost After Defragmentation

Fragmentation occurs naturally on HDDs when we create, modify or deleting files. It is because the file system allocates parts of a file in noncontinuous clusters in order to reuse chunks of unused storage sectors. 

For example, when we deleted an old file, the storage space it used to take will be marked as available and will be overwritten with new files when needed. These separated pieces of data are generally called "fragments". File fragments will in time slow data access, cause undesired file corruption or random system crashes.


What is defragmentation and what does it do?


Defragmentation is the process of physically reorganizing files into fewer fragments or into the whole file. Regularly defragment can benefit your hard drives in the following ways:

1. Reduce the read/write head seek times


Electromechanical  disk drives move the read/write head over different areas for fragments in order to access the whole file. Defragmentation will make files easier to access and applications will run more efficient and faster.




2. Extend your hard drive life


As is pointed out above, electromechanical drives rely on the read/write head movement to access files. Less fragments mean less travel distance, thereby less taxing on the mechanical parts.




3. Prevent potential data loss


Defragmentation can detect bad sectors that could lead to file corruption or loss if you have data saved on them.

What should I do when files accidentally get deleted during defragmentation?


Files may get accidentally deleted during defragmentation as the system moves files around and attempts to repair bad sectors. But this doesn't mean your files are lost forever. Use professional data recovery software to recovery your data. Hdata Recovery Software is designed to handle all kinds of data-lost situations. Check our website for download and more information.


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