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Hard disk drive performance characteristics information


Higher performance in hard disk drives comes from devices which have better performance characteristics.[1][2] These performance characteristics can be grouped into two categories: access time and data transfer time (or rate).[3]

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Hard disk drive performance characteristics

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Higher performance in hard disk drives comes from devices which have better performance characteristics. These performance characteristics can be grouped...

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Hard disk drive

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A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using...

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Hard disk drive failure

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A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer...

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History of hard disk drives

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engineers at IBM's San Jose California laboratory invented the hard disk drive. The disk drive created a new level in the computer data hierarchy, then termed...

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History of IBM magnetic disk drives

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mechanical arrangement of hard disk drives has not changed since the IBM 1301. Disk drive performance and characteristics are measured by the same standards...

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Standard RAID levels

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large reliable data stores from multiple general-purpose computer hard disk drives (HDDs). The most common types are RAID 0 (striping), RAID 1 (mirroring)...

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Disk storage

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changes to the disk's surface layer. A disk drive is a device implementing such a storage mechanism. Notable types are hard disk drives (HDD), containing...

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Transfers per second

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transmission, also known as digital transmission File transfer Hard disk drive performance characteristics § Data transfer rate Parallel port Symbol rate (baud)...

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DVD

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optical data-storage systems Digital video recorder Hard disk drive performance characteristics DVD authoring Ripping DVD region code DVD TV game – Interactive...

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Floppy disk

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3½-inch floppy disks can still be used with an external USB floppy disk drive. USB drives for 5¼-inch, 8-inch, and other-size floppy disks are rare to non-existent...

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RAM drive

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software is treating as if the memory were a disk drive (secondary storage). RAM drives provide high-performance temporary storage for demanding tasks and...

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SATA

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host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives. Serial ATA succeeded the earlier Parallel ATA...

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Defragmentation

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on electromechanical disk drives (hard disk drives, floppy disk drives and optical disk media). The movement of the hard drive's read/write heads over...

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Quantum Bigfoot

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The Quantum Bigfoot brand was a series of hard disk drives produced by Quantum Corp. from 1996 through the late 1990s. The Bigfoot series was notable for...

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Zone bit recording

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total data capacity on the same disk area. However, ZBR influences other performance characteristics of the hard disk. In the outermost tracks, data will...

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IOPS

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an input/output performance measurement used to characterize computer storage devices like hard disk drives (HDD), solid state drives (SSD), and storage...

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Computer data storage

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accessible by the CPU (secondary or tertiary storage), typically hard disk drives, optical disc drives, and other devices slower than RAM but non-volatile (retaining...

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File system

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developed for many types of storage devices, including hard disk drives (HDDs), solid-state drives (SSDs), magnetic tapes and optical discs. A portion of...

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SCSI

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peripheral devices, best known for its use with storage devices such as hard disk drives. SCSI was introduced in the 1980s and has seen widespread use on servers...

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Native Command Queuing

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Queuing (NCQ) is an extension of the Serial ATA protocol allowing hard disk drives to internally optimize the order in which received read and write commands...

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Memory paging

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memory) and secondary storage is called "disk" (a shorthand for hard disk drive, drum memory or solid-state drive, etc.), but as with many aspects of computing...

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Shingled magnetic recording

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technology used in hard disk drives (HDDs) to increase storage density and overall per-drive storage capacity. Conventional hard disk drives record data by...

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Computer engineering compendium

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SDRAM Flash memory Memory scrubbing Data striping Hard disk drive performance characteristics Disk sector Operating system Multiprocessing Concurrent...

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Serial Attached SCSI

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that moves data to and from computer-storage devices such as hard disk drives and tape drives. SAS replaces the older Parallel SCSI (Parallel Small Computer...

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Data corruption

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faulty at a rate of several in thousands of cores. One problem is that hard disk drive capacities have increased substantially, but their error rates remain...

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