Hybrid Hard Disk Drive Radhika Patel Basic Terms

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 lowend 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 It will 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 Speed: SSD slower than SSD Cost: cheap Reliability: technology is mature and failures are rare Speed: faster as there are no moving parts Cost: expensive Reliability: technology is fairly new, can operate reliably in harsh environments as there are no moving parts

Comparison cont. HDD SSD Storage Capacity: 1 TB+, more storage capacity available Capacity: 256 GB and 512 GB 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 128 MB 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=web& utm_campaign=b 5 hubs_migration