Hybrid Hard Disk Drive

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					Hybrid
Hard Disk
Drive
Radhika Patel
Basic Terms
 HDD   (Hard Disk Drive): storage center for
  data
 SSD (Solid State Drive): same thing as a
  hard drive, but with no moving parts
  Example: USB flash drive, internal memory
  on cell phones and cameras
HDD
A  hard drive is cheap and that’s why
  consumers prefer that option.
 Typical price range for a HDD is $74.99 to
  $120.99 for a terabyte (1024 GB).
 The typical cost of a HDD is about 7 cents
  per GB which shows its extreme
  cheapness.
HDD continued
 Performance   of a HDD: Base speed of a
  low-end hard drive is 5400 rpm
  (revolutions per minute) and a high-end
  hard drive would be 7200 rpm.
 The faster the disk spins, the faster the
  computer performance will be. In other
  words, the boot time and/or loading
  applications will be faster, hence more
  heat generation.
SSD
 Itwill boot the operating system much
  quicker and applications will appear
  much faster since it has no moving parts.
  Compared to the HDD, SSD produces little
  to no heat.
 Price: Ranges from $130 for 40 GB to $800
  for 256 GB. This gives us an estimated cost
  of $3 per GB.
Comparison
  HDD                        SSD
 Speed:   slower than      Speed: faster as
                             there are no moving
  SSD                        parts
 Cost: cheap               Cost: expensive
 Reliability:
                            Reliability:
                             technology is fairly
  technology is              new, can operate
  mature and failures        reliably in harsh
                             environments as
  are rare                   there are no moving
                             parts
Comparison cont.
 HDD                   SSD
 StorageCapacity:     StorageCapacity:
 1TB+, more storage    256GB and 512GB
 capacity available    becoming
                       available, thus less
                       storage capacity
                       available
Hybrid Hard Disk Drive
   HHDD combines the disk of a HDD and the
    memory chips of a SSD.
   Combines the performance of the SSD with
    the price and capacity of the HDD, hence
    the term Hybrid Hard Disk Drive.
   HHDD uses 128MB or more of high speed flash
    memory (embedded in hard drive).
   So, when booting a PC, operating system
    loads data from flash memory first, speeding
    up boot time and also removes need to
    quickly spin up the drive (saves power
    consumption).
   Expect HHDD to come out in end of 2010 or
    beginning of 2011.
Pros/Cons
 Much    cheaper than SSD
 Higher performance
 Product hasn’t came out so we don’t
  know if it is good or not
 Not much information has been revealed
  regarding the new HHDD’s
 All information revealed are estimations
HDD/SSD
HHDD
Sources
   http://news.cnet.com/8301-13924_3-
    20020659-64.html?tag=rtcol
   http://www.techdigest.tv/2009/06/guide_the_
    diffe.html
   http://www.webopedia.com/TERM/H/hybrid_
    hard_disk_drive.html
   http://everyjoe.com/technology/hard-drive-
    cost-per-gigabyte-from-1980-to-
    2009/?utm_source=everyjoe&utm_medium=w
    eb&utm_campaign=b5hubs_migration

				
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posted:9/29/2012
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