"Should you defrag SSD twice a year or never? When I raised the
question, it became a controversial issue argued by my friends. One of
them holds the opinion that I should defrag the SSD at least twice a
year because the defragging can accelerate the read and write speed of data,
while the other stands on the opposite side and insists that I should
never defrag SSD because there is no good in doing it, instead it will
reduce SSD performance. Now I am totally confused who is right. I heard
many people defragging their hard drives, is there any difference if
it's a solid state drive?"
Basic Understanding of Defragmentation
Defragmentation exists to re-arrange data to maximize read
performance of a spinning magnetic medium and a flying read head. Pretty
much everyone has defragged their hard disk once or twice to achieve
better performance. However, it often happens among hard disk drives
(HDDs). Why do we defragment a hard disk in the first place? Since
spinning hard disk reads and writes data sequentially, it takes longer
for the drive to read a file if parts of the file are located on
different parts of the disk. It's definitely useful to defrag an HDD,
now how about an SSD designed with totally different mechanism?
A solid state drive stores data altogether in one unit, and it
accesses memory randomly other than sequentially like an HDD. This is
why the reading and writing speed of data in an SSD is faster than that
of an HDD. From this point, it doesn’t matter if the parts of the file
are spread in many different places on an SSD because the performance
will remain the same.
Conclusion: SSD Defragment Is Pointless
The topic "should you or should you not defrag an SSD" now arrives at
a conclusion: it's unnecessary to defrag an SSD considering that the
data is being read randomly because you don't need to put all of the
sectors of any given large file together to reduce seek time.
IMPORTANT
Apart from the factor of being useless, people should have the general knowledge that an SSD has the finite lifespan which will be reduced if you defragged the drive causing tons of small write accesses.
IMPORTANT
Apart from the factor of being useless, people should have the general knowledge that an SSD has the finite lifespan which will be reduced if you defragged the drive causing tons of small write accesses.
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