History of hard disk drives

In 1953, IBM recognized the immediate application for what it termed a "Random Access File" having high capacity and rapid random access at a relatively low cost.[1] After considering technologies such as wire matrices, rod arrays, drums, drum arrays, etc.,[1] the engineers at IBM's San Jose California laboratory invented the hard disk drive.[2] The disk drive created a new level in the computer data hierarchy, then termed Random Access Storage but today known as secondary storage, less expensive and slower than main memory (then typically drums and later core memory) but faster and more expensive than tape drives.[3]

Main article: Hard disk drive

The commercial usage of hard disk drives (HDD) began in 1957, with the shipment of a production IBM 305 RAMAC system including IBM Model 350 disk storage.[4] US Patent 3,503,060 issued March 24, 1970, and arising from the IBM RAMAC program is generally considered to be the fundamental patent for disk drives.[5]

Each generation of disk drives replaced larger, more sensitive and more cumbersome devices. The earliest drives were usable only in the protected environment of a data center. Later generations progressively reached factories, offices and homes, eventually becoming ubiquitous.

Disk media diameter was initially 24 inches in diameter, but over time it has been reduced to today's 3.5-inch and 2.5-inch standard sizes. Drives with the larger 24-inch- and 14-inch-diameter media were typically mounted in standalone boxes (resembling washing machines) or large equipment rack enclosures. Individual drives often required high-current AC power due to the large motors required to spin the large disks. Drives with smaller media generally conformed to de facto standard form factors.

The capacity of hard drives has grown exponentially over time. When hard drives became available for personal computers, they offered 5-megabyte capacity. During the mid-1990s the typical hard disk drive for a PC had a capacity of about 1 gigabyte.[6] As of August 2020, desktop hard disk drives typically had a capacity of 1 to 8 terabytes, with the largest-capacity drives reaching 20 terabytes (single-disk drives, "dual" drives are available up to 24 TB). Smaller, laptop internal 2.5-inch drives, are available up to 5 TB.

Unit production peaked in 2010 at about 650 million units and has been in a slow decline since then.

1950s–1970s
See also: Early IBM disk storage

The IBM 350 Disk File was developed under the code-name RAMAC by an IBM San Jose team led by Reynold Johnson. It was announced in 1956 with the then new IBM 305 RAMAC computer.[7] A variant, the IBM 355 Disk File, was simultaneously announced with the IBM RAM 650 computer,[8] an enhancement to the IBM 650.

The IBM 350 drive had fifty 24-inch (0.6 m) platters, with a total capacity of five million 6-bit characters (3.75 megabytes).[9] A single head assembly having two heads was used for access to all the platters, yielding an average access time of just under 1 second.

The RAMAC disk drive created a new level in the computer data hierarchy, today known as secondary storage, less expensive and slower than main memory (then typically core or drum) but faster and more expensive than tape drives.[3] Subsequently there was a period of about 20 years in which other technologies competed with disks in the secondary storage marketplace, for example tape strips, e.g., NCR CRAM, tape cartridges, e.g., IBM 3850, and drums, e.g., Burroughs B430, UNIVAC FASTRAND, but all ultimately were displaced by HDDs. Today SSDs compete with HDDs in the marketplace.

The IBM 1301 Disk Storage Unit,[10] announced in 1961, introduced the usage of heads having self-acting air bearings (self-flying heads) with one head per each surface of the disks. It was followed in 1963 by the IBM 1302, with 4 times the capacity.

Also in 1961, Bryant Computer Products introduced its 4000 series disk drives. These massive units stood 52 inches (1.3 m) tall, 70 inches (1.8 m) long, and 70 inches (1.8 m) wide, and had up to 26 platters, each 39 inches (0.99 m) in diameter, rotating at up to 1,200 rpm. Access times were from 50 to 205 milliseconds (ms). The drive's total capacity, depending on the number of platters installed, was up to 205,377,600 bytes (205 MB).[11][12]

The first disk drive to use removable media was the IBM 1311 drive. It was introduced in 1962 using the IBM 1316 disk pack to store two million characters. It was followed by the IBM 2311 (1964) using the IBM 1316 disk pack to store 5 megabyte, IBM 2314 (1965) using the IBM 2316 disk pack to store 29 megabytes, the IBM 3330 using 3336 disk packs to store 100 megabytes and the 3330-11 using the 3336-11 to store 200 megabytes.

A partially disassembled IBM 350 (RAMAC)

Memorex shipped the first HDD, the Memorex 630, in 1968, plug compatible to an IBM model 2311 marking the beginning of independent competition (Plug Compatible Manufacturers or PCMs) for HDDs attached to IBM systems. It was followed in 1969 by the Memorex 660, an IBM 2314 compatible, which was OEM'ed to DEC and resold as the RP02.

Removable disk packs

In 1964, Burroughs introduced the B-475 disk drive, with a head per track, as part of the B5500.

Burroughs B-475 Disk Drive (circled)

In 1970, IBM introduced the 2305 disk drive, with a head per track.

In 1973, IBM introduced the IBM 3340 "Winchester" disk drive and the 3348 data module, the first significant commercial use of low mass and low load heads with lubricated platters and the last IBM disk drive with removable media. This technology and its derivatives remained the standard through 2011. Project head Kenneth Haughton named it after the Winchester 30-30 rifle because it was planned to have two 30 MB spindles; however, the actual product shipped with two spindles for data modules of either 35 MB or 70 MB.[13] The name 'Winchester' and some derivatives are still common in some non-English speaking countries to generally refer to any hard disks (e.g. Hungary, Russia).

Also in 1973, Control Data Corporation introduced the first of its series of SMD disk drives using conventional disk pack technology. The SMD family became the predominant disk drive in the minicomputer market into the 1980s.

Smaller diameter media came into usage during the 1970s and by the end of the decade standard form factors had been established for drives using nominally 8-inch media (e.g., Shugart SA1000) and nominally 5.25-inch media (e.g., Seagate ST-506).

During the 1970s, captive production, dominated by IBM's production for its own use, remained the largest revenue channel for HDDs, though the relative importance of the OEM channel grew. Led by Control Data, Diablo Systems, CalComp and Memorex, the OEM segment reached $631 million in 1979, but still well below the $2.8 billion associated with captive production.[14]

1980s, the transition to the PC era

The 1980s saw the minicomputer age plateau as PCs were introduced. Manufacturers such as DEC and Hewlett-Packard continued to manufacture minicomputer compatible hard drive systems as industry demanded higher storage. Hewlett-Packard introduced the HP 7935 as one such drive. But it was clear that smaller Winchester storage systems were eclipsing large platter hard drives.

Seagate 20 MB HDD and Western Digital Controller for PC

Hard disk drives for personal computers (PCs) were initially a rare and very expensive optional feature; systems typically had only the less expensive floppy disk drives or even cassette tape drives as both secondary storage and transport media. However by the late '80s, hard disk drives were standard on all but the cheapest PC and floppy disks were used almost solely as transport media.

Most hard disk drives in the early 1980s were sold to PC end users by systems integrators such as the Corvus Disk System or the systems manufacturer such as the Apple ProFile. The IBM PC XT in 1983, included an internal standard 10 MB hard disk drive, and soon thereafter internal hard disk drives proliferated on personal computers, one popular type was the ST506/ST412 hard drive and MFM interface.

HDDs continued to get smaller with the introduction of the 3.5-inch form factor in the middle of the decade Rodime 1983 and the 2.5-inch form factor PrairieTek 1988.

Industry participation peaked with about 75 active manufacturers in 1985 and then declined thereafter even though volume continued to climb: by 1989 reaching 22 million units and US$23 billion in revenue.[15]

1990s

Even though there were a number of new entrants, industry participants continued to decline in total to 15 in 1999. Unit volume and industry revenue monotonically increased during the 1990s to 174 million units and $26 billion.[16]

The industry production consolidated around the 3.5-inch and 2.5-inch form factors; the larger form factors dying off while several smaller form factors were offered but achieved limited success, e.g. HP 1.3-inch Kittyhawk, IBM 1-inch Microdrive, etc.

2000 to present
A 2TB Hard drive from 2011 with built in SATA interface

In 2001 the HDD industry experienced its first ever decline in units and revenue.

The number of industry participants decreased to 6 in 2009 and to 3 in 2013.

In 2009 – Fujitsu exits by selling HDD business to Toshiba[17]

In 2011 – Floods hit many hard drive factories. Predictions of a worldwide shortage of hard disk drives cause prices to double.[18][19][20]

In 2012 Western Digital announced the first 2.5-inch, 5 mm thick drive, and the first 2.5-inch, 7 mm thick drive with two platters[21]

Unit production peaked in 2010 at about 650 million units. Unit shipment has been in a slow decline since then, shipping about 276 million units in 2018 with a somewhat slower decline projected thereafter.[22]

As of August 2020, the largest hard drive is 20 TB (while SSDs can be much bigger at 100 TB, mainstream consumer SSDs cap at 8 TB).[23][24][25] Smaller, laptop internal 2.5-inch drives, are available up to 5 TB.

Timeline
  • 1956 – IBM 350A, shipment of prototype disk drive to Zellerbach, SF CA, USA
  • 1957 – IBM 350, first production disk drive, 5 million characters (6-bit), equivalent to 3.75 megabytes.
  • 1961 – IBM 1301 Disk Storage Unit introduced with one head per surface and aerodynamic flying heads, 28 million characters (6-bit) per module.
  • 1961 – Bryant 4000 (Bryant Computer Products division of Ex-Cell-O) up to 205 MB on up to 26 29-inch diameter platters.[26]
  • 1962 – IBM 1311 introduced removable disk packs containing 6 disks, storing 2 million characters per pack
  • 1964 – IBM 2311 with 7.25 megabytes per disk pack
  • 1964 – IBM 2310 removable cartridge disk drive with 1.02 MB on one disk
  • 1965 – IBM 2314 with 11 disks and 29 MB per disk pack
  • 1968 – Memorex is first to ship an IBM-plug-compatible disk drive
  • 1970 – IBM 3330 Merlin, introduced error correction, 100 MB per disk pack
  • 1973 – IBM 3340 Winchester introduced removable sealed disk packs that included head and arm assembly, 35 or 70 MB per pack
  • 1973 – CDC SMD announced and shipped, 40 MB disk pack
  • 1976 – 1976 IBM 3350 "Madrid" – 317.5 megabytes, eight 14-inch disks, re-introduction of disk drive with fixed disk media
  • 1979 – IBM 3370 introduced thin film heads, 571 MB, non-removable
  • 1979 – 1979 IBM 62PC "Piccolo" – 64.5 megabytes, six 8-inch disks, first 8-inch HDD
  • 1980 – The IBM 3380 was the world's first gigabyte-capacity disk drive. Two 1.26 GB, head disk assemblies (essentially two HDDs) were packaged in a cabinet the size of a refrigerator,[27] weighed 455 kg (1000 lb), and had a price tag of US$81,000 (Model B4) which is US$251,342 in present-day terms.[28]
  • 1980 – Seagate releases the first 5.25-inch hard drive, the ST-506;[29] it had a 5-megabyte capacity, weighed 5 pounds (2.3 kilograms), and cost US$1,500[30]
  • 1982 – HP 7935 404 megabyte, 7-platter hard drive for minicomputers, HP-IB bus, $27,000
  • 1983 – RO351/RO352 first 3​1⁄2 inch drive released with capacity of 10 megabytes[31]
  • 1986 – Standardization of SCSI
  • 1988 – PrairieTek 220 – 20 megabytes, two 2.5-inch disks, first 2.5-inch HDD
  • 1989 – Jimmy Zhu and H. Neal Bertram from UCSD proposed exchange decoupled granular microstructure for thin film disk storage media, still used today.
  • 1990 – 1990 IBM 0681 "Redwing" – 857 megabytes, twelve 5.25-inch disks. First HDD with PRML Technology (Digital Read Channel with 'partial response maximum likelihood' algorithm).
  • 1991 – IBM 0663 "Corsair" – 1,004 megabytes, eight 3.5-inch disks; first HDD using magnetoresistive heads
  • 1991 – Integral Peripherals 1820 "Mustang" – 21.4 megabytes, one 1.8-inch disk, first 1.8-inch HDD[32]
  • 1992 – HP Kittyhawk – 20 MB, first 1.3-inch hard-disk drive
  • 1992 – Seagate ships the first 7,200-rpm hard drive, the Barracuda[32]
  • 1993 – IBM 3390 model 9, the last Single Large Expensive Disk drive announced by IBM
  • 1994 – IBM introduces Laser Textured Landing Zones (LZT)
  • 1996 – Seagate ships the first 10,000-rpm hard drive, the Cheetah[32]
  • 1997 – IBM Deskstar 16GP "Titan" – 16,800 megabytes, five 3.5-inch disks; first (Giant Magnetoresistance) heads
  • 1997 – Seagate introduces the first hard drive with fluid bearings[33]
  • 1998 – UltraDMA/33 and ATAPI standardized
  • 1999 – IBM releases the Microdrive in 170 MB and 340 MB capacities
  • 2000 – Seagate ships the first 15,000-rpm hard drive, the Cheetah X15[32]
  • 2002 – (Parallel) ATA breaks 137 GB (128 GiB) addressing space barrier
  • 2002 – Seagate ships the first Serial ATA hard drives[34][35][32][36]
  • 2003 – IBM sells disk drive division to Hitachi
  • 2004 – MK2001MTN first 0.85-inch drive released by Toshiba with capacity of 2 gigabytes[32]
  • 2005 – Serial ATA 3 Gbit/s standardized
  • 2005 – Seagate introduces Tunnel MagnetoResistive Read Sensor (TMR) and Thermal Spacing Control
  • 2005 – Introduction of faster SAS (Serial Attached SCSI)
  • 2005 – First perpendicular magnetic recording (PMR) HDD shipped: Toshiba 1.8-inch 40/80 GB[37]
  • 2006 – First 200 GB 2.5-inch hard drive utilizing perpendicular recording (Toshiba)
  • 2009 – Western Digital ships first HDD with dual stage piezoelectric actuator[38]
  • 2010 – First hard drive manufactured by using the Advanced Format of 4,096‑byte sectors instead of 512‑byte sectors.[39](Overview)
  • 2012 – TDK demonstrates 2 TB on a single 3.5-inch platter[40]
  • 2012 – WDC acquires HGST operating it as a wholly owned subsidiary. WDC then provides rights to Toshiba,[41] allowing it to re-enter the 3.5-inch desktop hard disk drive market.[42]
  • 2013 – HGST ships first modern[43] helium-filled hard disk drive; He6 with 6 TB on 7 platters[44] (announced in 2012).[45][46]
  • 2013 – Seagate claims first to ship shingled magnetic recording (SMR) HDDs[47]
  • 2021: 20 TB HAMR drives were released in January 2021. [48]

Manufacturing history
See also: List of defunct hard disk manufacturers
Diagram of consolidation

Manufacturing began in California's Silicon Valley in 1957 with IBM's production shipment of the first HDD, the IBM RAMAC 350. The industry grew slowly at first with three additional companies in the market by 1964, Anelex Corp., Bryant Computer Products and Data Products Corp.[49] The industry grew rapidly in the late 1960s and again in the 1980s reaching a peak of 75 manufacturers in 1984.[50] There have been at least 221 companies manufacturing hard disk drives[51][52][53][54] but most of that industry has vanished through bankruptcy or mergers and acquisitions. Surviving manufacturers are Seagate, Toshiba and Western Digital (WD) with Toshiba as the senior participant having entered the market in 1977,[55] twenty years after IBM started the market.

From beginning and into the early 1980s manufacturing was mainly by US firms in the United States at locations such as Silicon Valley, Los Angeles, Minnesota and Oklahoma City.[52]:Table 7 In the 1980s US firms, beginning with Seagate, began to shift production to Singapore and then other locations in southeast Asia. In a span of seven years, 1983 to 1990, Singapore became the single largest location of HDD production, amounting to 55% of worldwide production.[52]:Table 9 Japanese HDD companies later also moved their production to southeast Asia.[52]:Table 10 Today the three remaining firms all produce their units in the Pacific Rim.

By the 1990s the dollar value of magnetic recording devices produced by companies located in California's "Silicon Valley" exceeded the dollar value of semiconductor devices produced there leading some to suggest that a more appropriate name for this area would be "Iron Oxide Valley," after the magnetic material coating the disks.[56] All three remaining firms still have significant activities in Silicon Valley, but no HDD manufacturing. Western Digital still manufactures its read-write head wafers in Fremont CA.

See also

References
  1. "Proposal – Random Access File," A. J. Critchlow, IBM RESEARCH AND DEVELOPMENT LABORATORY, San Jose, California, February 6, 1953
  2. US 3503060 DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE March 24, 1970, invented by Goddard & Lynott, assigned to IBM
  3. The IBM 350 RAMAC Disk File, ASME Award, February 27, 1984.
  4. Bashe; et al. (1986). IBM's Early Computers. MIT Press. p. 300. ISBN 0-262-02225-7.
  5. Disk Drive Patent Archived 2011-08-28 at the Wayback Machine
  6. 1996 Disk Trend Report – Rigid Disk Drives, Figure 2 – Unit Shipment Summary
  7. "NEW PRODUCT ANNOUNCEMENT- IBM 305 RAMAC," IBM Announcement Letter 256-114, September 4, 1956
  8. "NEW PRODUCT ANNOUNCEMENT- RAM 650," IBM Announcement Letter 256-117, September 4, 1956
  9. Jacob, Bruce; Ng, Spencer W.; Wang, David T. (2008). Memory systems: cache, DRAM, disk. Elsevier Inc. p. 602. ISBN 978-0-12-379751-3.
  10. "IBM Archives: IBM 1301 disk storage unit". www-03.ibm.com. 23 January 2003.
  11. "Bryant Model 2 Series 4000 Disc Files" (PDF). Bryant Computer Products. 1965-06-15. Retrieved 2010-01-03.
  12. "Data Storage, Data Backup and Storage Virtualization: Walking Through 50 Years of Hard Disk Drive History (slide 6)". eWEEK.com. Retrieved 2010-01-03.
  13. "IBM Archives: IBM 3340 direct access storage facility". www.ibm.com. 23 January 2003.
  14. Storage Industry Dynamics And Strategy Archived 2014-02-09 at the Wayback Machine
  15. Disk/Trend Report - Rigid Disk Drives, October 1989
  16. Gartner/Dataquest, Market Share and Forecast: Hard Disk Drives, Worldwide, 2001-2010, Chapter 2, (c) 2006
  17. "Fujitsu to Split Off HDD Business in Reorganization". Fujitsu Ltd. May 21, 2009. Retrieved February 22, 2020.
  18. Fuller, Thomas (6 November 2011). "Thailand Flooding Cripples Hard-Drive Suppliers". New York Times. Retrieved 12 November 2011.
  19. "Western Digital's flood-hit Thailand ops to hurt company". Reuters. 17 October 2011. Retrieved 29 October 2011.
  20. "Farming hard drives: how Backblaze weathered the Thailand drive crisis". 2012-10-09.
  21. "IDF: Western Digital demonstrates 5mm thick hard disks".
  22. "Worldwide unit shipments of hard disk drives (HDD) from 1976 to 2022 (in millions)". Statista. February 22, 2019. Retrieved December 11, 2019.
  23. "Ultrastar DC HC600 SMR Series". www.westerndigital.com. Retrieved 2020-09-17.
  24. "WESTERN DIGITAL WD181KRYZ Hard Drive WD Gold 18TB 3.5in". Redcorp. Retrieved 2020-08-18.
  25. "What's the Largest Hard Drive You Can Buy?". Tech Junkie. Retrieved 2020-08-18.
  26. "HDD competitors enter the market, Bryant Computer Products introduces units storing up to 205 MB". 1961. Retrieved November 10, 2018.
  27. "IBM Arrchives: IBM 3380 direct access storage device". IBM. Retrieved 2015-06-22.
  28. Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–". Retrieved January 1, 2020.
  29. "Disc-storage innovations keep coming while manufacturers ponder user needs". EDN. May 20, 1980. p. 59.
  30. Lawson, Stephen (2008-04-22). "Seagate ships one-billionth hard drive". Computerworld. Retrieved 2019-08-13.
  31. http://chmhdd.wetpaint.com/page/Rodime+RO352
  32. Rex Farrance (September 13, 2006). "Timeline: 50 Years of Hard Drives". PCWorld.
  33. "Seagate - Maximize data's potential | Seagate US". Seagate.com.
  34. "First serial ATA drives hit store shelves". PC World. Retrieved 2019-08-13.
  35. "Seagate Ships Second Serial ATA Drive - ExtremeTech". www.extremetech.com. Retrieved 2019-08-13.
  36. "Seagate and Intel Demonstrate First Serial ATA Hard Drive at PC Expo; Seagate to Ship Serial ATA Product This Fall | News Archive | Seagate US". Seagate.com. Retrieved 2019-08-13.
  37. "Toshiba : Press Releases 14 December, 2004". www.toshiba.co.jp.
  38. "Western Digital shipping high-speed 2TB hard drive". cnet. September 1, 2009. Retrieved August 13, 2019. The secondary actuator uses piezoelectric motion to fine tune the head positioning to a higher degree of accuracy.
  39. "Transition to Advanced Format 4K Sector Hard Drives". www.seagate.com. Retrieved 14 December 2020.
  40. "TDK Finally Crams 2TB on One 3.5-inch HDD Platter". 4 October 2012.
  41. "FTC: Western Digital and Hitachi must give assets and IP rights to Toshiba (update: sale approved)".
  42. "Toshiba Expands Product Portfolio with 3.5-Inch Client Hard Disk Drives ..." (PDF).
  43. The 1982 NTT "PATTY" HDD was helium filled but was considered a failure at least in part due to helium leakage, see: Decades of Proven Research Underpin Seagate’s Helium Drive.
  44. "HGST ships first 6TB helium-filled hard drives". November 7, 2013. Retrieved November 10, 2018.
  45. "HGST Announces Radically New, Helium-Filled Hard Disk Drive Platform - HGST". www.hgst.com.
  46. "Helium Drives Cloud Storage", Computer History Museum, Data Storage Milestone
  47. "Seagate Delivers On Technology Milestone: First To Ship Hard Drives Using Next-Generation Shingled Magnetic Recording". September 9, 2013. Retrieved November 10, 2018.
  48. https://www.digitimes.com/news/a20210115PD211.html
  49. Hess, Herman (1964). "A Comparison of the Characteristics of Modern Discs and Tapes". Disc File Applications. Nation's First Disc File Symposium. Detroit, MI, USA: American Data Processing Inc. pp. 60–70. 64-23108.
  50. Porter, James (October 1984). 1984 Disk/Trend Report - Rigid Disk Drives. Disk/Trend Inc. p. SUM-4.
  51. Maleval, Jean-Jacques (2013-03-28). "HISTORY: List of 221 Companies in HDD Manufacturing Since 1956". Retrieved 2017-03-27.
  52. McKendrick, David (November 1997). "Sustaining Competitive Advantage in Global Industries: Technological Change and Foreign Assembly in the Hard Disk Drive Industry". Archived from the original on 2014-02-09. Retrieved 2011-08-03. McKendrick lists 67 defunct hard disk drive manufacturers
  53. "TheRef - Hard Drives". TheRef lists 101 HDD manufacturers active from 1989 to 1996, only three of which remain in 2017.
  54. "硬盘" [Hard disk manufacturers] (in Chinese and English). Archived from the original on 2016-12-06. Retrieved 2017-03-30. - lists 126 HDD manufacturers including 3 current ones.
  55. "Toshiba MK-100F/MK-300F". IPSJ Computer Museum. Retrieved April 18, 2017. This was a 14-inch fixed magnetic disk unit Toshiba started shipping in June 1977
  56. Livingston, James D. (1996). DRIVING FORCE - The Natural Magic Of Magnets. Harvard University Press. p. 148. ISBN 9780674216457.
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