Hybrid Hard DriveSlide 2Slide 3BenefitsDrawbacksThe Future?ProsHard disk drive-left, Solid state drive-rightHybrid Hard DriveHybrid Hard DriveWilliam SullivanWilliam SullivanHTM 304HTM 30410/09/200710/09/2007•Hybrid drives were first released in early 2007 (Samsung)• At the moment hybrid drives are only compatible with the Windows Vista operating system.InformationSystemHardware Software Data Procedures PeopleHybrid DiskDriveHybrid Hard DriveHybrid Hard DriveA new large-buffer computer hard disk A new large-buffer computer hard disk drive.drive.Employs a large buffer (up to 1 GB) of non-Employs a large buffer (up to 1 GB) of non-volatile flash memory to cache data during volatile flash memory to cache data during normal use.normal use.The hard disk drive is used only in two The hard disk drive is used only in two situations:situations:1) to empty the buffer when it is near 1) to empty the buffer when it is near capacitycapacity2) to retrieve data not already stored in 2) to retrieve data not already stored in the buffer.the buffer.BenefitsBenefitsDecreased power Decreased power consumptionconsumptionDecreased heat generation Decreased heat generation Decreased noise levels Decreased noise levels Improved reliabilityImproved reliabilityImproved performanceImproved performanceDrawbacksDrawbacksIncreased seek time for non cached data.Increased seek time for non cached data.* if hard drive has spun down and * if hard drive has spun down and needs to needs to spin upspin upIncreased costIncreased cost* flash memory chips are still pretty * flash memory chips are still pretty expensiveexpensiveIncreased frequency of spin up and spin Increased frequency of spin up and spin downdown* may cause more wear on the hard disk* may cause more wear on the hard diskThe Future?The Future?Solid State Drives- a data storage Solid State Drives- a data storage device that uses solid state memory device that uses solid state memory to store persistent data. to store persistent data. • Could replace hard disk drivesPros Pros Pros:Pros:Faster startupFaster startupReduced read and write latency (seek) Reduced read and write latency (seek) timestimesFaster boot and application launch timesFaster boot and application launch timesFew to no mechanical partsFew to no mechanical partsCons:Cons:Flash memory is expensiveFlash memory is expensiveLow recoverabilityLow recoverabilityHard disk drive-left, Solid state drive-rightHard disk drive-left, Solid state
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