29/10/14

SSD v HDD -Which is Best?

SSDChances are you are very familiar with the term Hard Disk Drive
(HDD). It’s the conventional way to store data on your PC, laptop or server (internally
and externally). Without getting into the nitty gritty detail, a HDD usually
contains 1 – 4 rapidly rotating disks or platters which contain tiny magnetised
regions. It is these regions which contain the stored data and it is the magnetism
which means the data stays stored even when the HDD is not powered on.

SSD – an alternative storage media

Recently a new term has appeared; Solid State Drive or SSD. As
the name suggests Solid State Drives are completely solid and contain no moving
parts. SSD’s work by using semiconductor chips; the, same kind of chips used in
computer memory (aka RAM). However, unlike RAM which provides volatile memory (it disappears when you
switch off the machine) SSD’s use non-volatile
memory – meaning the data stays put even without power.

The advantages of SSD

In recent years SSD’s have become both more reliable and
more technologically advanced. The most advanced and seriously expensive SSD’s
can store up to 1TB (terabytes) of
data. Although this space is dwarfed by the 4TB potential of the HDD, there are
several advantages to using a Solid State Drive over a Hard Disk Drive:

  • No moving parts: With an SSD being
    completely solid, issues such as temperature, sound, wear and endurance are virtually
    non-existent.
  • Shockproof: SSD’s are much more durable
    than HDD’s. This makes them particularly useful as external backup drives which
    may be frequently moved about.
  • System performance: SSD’s can both read
    and write data almost 3 times faster than a conventional HDD. As the HDD fills
    up, data is written to the slower-moving inner sectors; as an SSD doesn’t have
    any moving parts the read and write speeds are maintained throughout the entire
    drive. What does this all mean for your machine? This means your PC will boot up much faster, programs will launch faster and disk delays will be much shorter.
  • Data recovery: In a majority of cases when a HDD fails the data it
    contains is lost forever, however when SSD’s fail the data stays on the drive
    and can be recovered; this recovery process however is only done by specialised
    companies and can be both time consuming and costly due to SSD’s still being
    fairly new to the data storage market.
  • Longer life
    spans:
    An industry standard term known as “Mean time between failures” is
    used by many manufactures to give an estimate on the life span of a product
    before it fails. HDD’s typically stand at 1,200,000 hours and SSD’s at
    2,000,000 hours. However, many argue that this measurement is not reliable due
    to these figures being generated in lab environments using complex linear
    equations. However, the lack of moving parts in an SSD is certainly likely to give it a
    life span advantage over HDD’s.

Contact Us

If you would like more information on SSDs, or would like to
upgrade your machines’ storage from HDD to an SDD then feel free to contact us
on 01952 68403001952 684030 or email katy@networksupportsolutions.co.uk.