In recent times, the use of new storage units as an
alternative to hard drives has become widespread: these are SSDs or solid state
drives.
Unlike conventional hard drives, SSDs lack moving components,
such as magnetic platters, reader heads, or motor. The common element between
SSD and conventional disk is electronic controller
SSD drives are based on flash memory technology. USB
memories and SD cards, storage devices that are already part of our daily
lives, also work with this technology.
How
are SSDs better than conventional hard drives?
It can be said that the main advantage of SSDs over
conventional hard drives is their response speed.
Conventional drives need to spend a considerable amount
of time getting up and running. When starting, the motor should begin to rotate
to move the plates to the optimum speed; the read heads must leave their
parking area and move until they are positioned correctly. Then, for each read
or write operation, the heads must wait for the rotation of the plates and
position themselves in the appropriate sector.
However, on an SSD disk, by working exclusively with
flash memory, reading or writing data is much faster. The time it takes for the
drive to wake up and be ready to go, almost instantly, is also much shorter.
Pros
and cons of SSD drives
SSDs are much more better in terms of performance than
conventional hard drives and it may replace it completely too soon.
But not everything is advantageous with this type of
device, with price and capacity being its main disadvantages. SSD is more
expensive than conventional hard drive. In addition, the maximum capacity that
we can find today in the market for SSDs is much lower than that available in
conventional disks.
It should also be mentioned that certain SSD units are
known to suffer from defects in their firmware or in their controllers; these
failures can render the disk unusable and cause us to lose access to our data.
On the other hand, most SSD models are programmed to
“clean” (permanently erase) the free space that remains unused in the file
system. This has serious implications if there is an accidental deletion of
files or folders, or when they disappear due to a logical error. In those
cases, we run a high risk that the disk will erase any remaining deleted or
lost files, causing them to be irretrievably lost.
What
to do in case of data loss
If you know that your computer uses an SSD disk and you
encounter a situation of file loss or accidental deletion, we recommend that
you immediately shut down your computer and put your SSD in the hands of
professionals to carry out data
recovery.
Information keeps on passing while working on computer or
doing data recovery at home, it will be irretrievably erased by the device
itself, making it impossible to recover
the data the data even by professionals.
This particularity of SSD disks can be considered a good
security measure for those who want that their deleted or old information
cannot be recovered by anyone, but it also show a big problem of deleting files
accidently.
We end by remembering, as always, that the best
prevention is to have one or more backup copies, updated and verified, and in
case that doesn’t work use a data
recovery software that is easy to use and it shows quick recovery too.
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