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WO1990006580A1 - Memoire electromecanique - Google Patents

Memoire electromecanique Download PDF

Info

Publication number
WO1990006580A1
WO1990006580A1 PCT/EP1989/000601 EP8900601W WO9006580A1 WO 1990006580 A1 WO1990006580 A1 WO 1990006580A1 EP 8900601 W EP8900601 W EP 8900601W WO 9006580 A1 WO9006580 A1 WO 9006580A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage
data
drive
units
disk drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1989/000601
Other languages
German (de)
English (en)
Inventor
Günter Baitz
Wolfgang Kern
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wincor Nixdorf International GmbH
Nixdorf Computer AG
Original Assignee
Nixdorf Computer AG
Siemens Nixdorf Informationssysteme AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nixdorf Computer AG, Siemens Nixdorf Informationssysteme AG filed Critical Nixdorf Computer AG
Priority to KR1019900701646A priority Critical patent/KR930008152B1/ko
Publication of WO1990006580A1 publication Critical patent/WO1990006580A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/10—Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08; Adaptor devices therefor

Definitions

  • the innovation relates to an electromechanical data storage arrangement comprising a first and a second storage unit, each with a storage medium adjustable by a drive, a drive control and a read / write device assigned to the storage medium, the storage units being arranged in a common frame.
  • a data storage arrangement of the aforementioned type known from EP-A-69 545 comprises two functionally separate storage units which are self-contained.
  • One is a hard disk drive and the other is a cassette tape drive that can be fully inserted into the frame of the hard disk drive. Both can have an appropriate one 1 interface can be functionally coupled. Since the two storage units form completely independent units in terms of space and function, which can also be produced independently of one another, the space is
  • 5 may still be relatively high for both units. Functionally, they behave like any two storage media that can be connected to one another by an interface.
  • a higher form of integration of two storage units 0 is realized in the data storage arrangement described in EP-A-20 176.
  • a hard disk drive and a tape drive are also combined here, the read / write drum for the magnetic tape of the tape drive being arranged on the shaft of the hard disk drive 5.
  • a functional connection is provided between the two storage units, which allows data to be transferred directly from one storage unit to the other.
  • This embodiment allows the spatially dense and compact arrangement of the Speichereinhei- 0 th. Functionally, however, this embodiment has the disadvantage that the storage units are not independently operable. As a result, the possible uses of the storage units and thus also the performance of the entire data storage arrangement become significant
  • the innovation is based on the object of specifying a data storage arrangement of the type mentioned at the outset which is so compact in space that it does not exceed a height of 41.3 mm 30 (so-called half-height) without the performance of the data storage arrangement being restricted .
  • this object is achieved in that both storage units are arranged on the two sides of a base plate of the frame common to them and at least parts of the electronic control circuits of both storage units are arranged on a common printed circuit board. This enables an extremely compact arrangement of the data memory, since the common base plate can be shaped in such a way that cavities in one memory unit can be used to accommodate components of the other memory unit.
  • tape drive can also be a Komplatten ⁇ drive (floppy disk drive) or a device for optical storage of data is provided, the storage medium is each replaceable.
  • the memory units also functionally closely __ ⁇ __ connect by the two memory units through an internal bus are connected to one another and to a common interface, via which the data memory can be connected to a data processing system, and a common sequence control is assigned to both memory units, the data transport on the internal bus and the access to the two memory devices units by one between the internal bus and the - A -
  • Sequence control arranged bus control with intermediate storage function is controllable.
  • each storage unit can be accessed individually via the interface and, on the other hand, data can be exchanged between the storage units via the internal bus without the need to transport data via the interface.
  • the bus control and the sequence control common to the two storage units ensure that the available times for the data transport between the interface and the individual storage units, between the storage units among one another and between the interface and the bus control are optimally used.
  • a bus protocol unit which isolates them from the internal bus is preferably arranged between the internal bus and the interface.
  • the latter has the task, for example, of first collecting and building up incoming commands via the interface and only then passing them on to the bus controller via the internal bus, in order to keep the internal bus free for internal data transport as long as possible.
  • a SCSI interface can be used as the interface.
  • a read / write memory is preferably connected to the internal bus and serves as a buffer for the data read from a memory unit or for data to be stored in a memory unit. This enables problem-free transfer of the data from one storage unit to the other. While the hard disk drive is mainly used as background memory due to its short access times, the other storage units with their exchangeable data carriers either allow the data of the hard disk drive to be backed up or data records and programs can be transferred to the hard disk drive, with the functional connection of the two memories ⁇ units guarantee extremely short transmission times via the internal bus and the computer bus is not loaded.
  • Fig. 1 is a block diagram of the innovation
  • FIG. 2 shows a section through a data storage arrangement according to a first embodiment of the invention along line II-II in FIG
  • FIG. 3 shows a plan view of the arrangement shown in FIG. 2 in the direction of arrow A
  • Fig. 4 is a plan view of the arrangement according to
  • the dashed rectangles 10 and 12 denote two storage units.
  • the storage unit 10 can be, for example, a hard disk drive, while the storage unit 12 is, for example, a removable disk or floppy disk drive (floppy disk drive), a tape drive or an optical storage device, as is shown in FIG of Figures 2 to 10 is described in more detail.
  • the two storage units 10 and 12 are connected to one another via an internal bus 14 and via an interface 15 to a peripheral bus 16, which may be a SCSI bus, for example.
  • the connection between the internal bus 14 and the peripheral bus 16 takes place via a bus protocol unit 18, which is capable of independently receiving and temporarily storing a command with its auxiliary parameters, and through which the internal bus 14 is isolated from the peripheral bus 16.
  • the data transport on the internal bus 14 is controlled by a bus controller 20 with a buffer function.
  • the bus control is via a processor bus 22 with a Microprocessor 24 connected, which is responsible for the sequential control of the entire data storage arrangement.
  • the microprocessor 24 contains a small internal read / write memory and receives commands from the read-only memory 26 via the processor bus 22. By separating the processor bus 22 from the internal bus 14, this can be done independently of a simultaneous data transport on the internal bus 14 done.
  • Each of the storage units 10 and 12 comprises a formatter 28 and 30, respectively, which communicates with the internal bus 14 and converts the data format on the internal bus 14 into that of the storage medium and vice versa, and data in each case to a data channel 32 or 34 can send or receive from this.
  • the data channels 32 and 34 each encode or decode the data between the NRZ format (non return to zero) and the write format on the storage medium.
  • Write ver ⁇ with the data channels 32 and 34 Thematic read / write devices 36 and 38 / read the encoded data to the respective storage medium _> o ⁇ or from this.
  • the storage media are each moved by a mechanism with an associated control 40 or 42, which in turn derives its commands from the
  • Microprocessor 24 received via lines 44, 46 and
  • the data paths 18, 14, 20 and 48 common to both storage units 10 and 12 and the central sequence control by the microprocessor 24 allow a special mode of operation which makes the data storage arrangement shown particularly suitable for the production of security copies (backup copies).
  • data can be copied from one storage medium to the other without the peripheral bus 16 being burdened with the data transmission.
  • the one formatter 28, 30 fills the read / write memory 48 when reading from its storage medium, while the other (30, 28) empties the read / write memory 48 when writing to the associated storage medium.
  • the microprocessor 24 knows when an interruption is likely to occur in the data flow to or from the respective storage unit 10, 12 (for example, due to positioning times, starting or braking of the belt, etc ).
  • FIGS. 2 to 10 now show three embodiments of a data storage device comprising two storage units that are particularly space-saving combined and functional - tional are connected to each other in the manner described above. 1
  • the embodiment illustrated in Figures 2 to 4 shows a combination of a hard disk drive 50 with ⁇ a tape drive 52.
  • the hard disk drive comprises a housing base 54 having a base plate 56 on which the two magnetic plates 58 carrying drive motor is arranged 60th Furthermore, a drive 62 for support arms 64, which carry the magnetic heads 66 for the individual magnetic plates 58, is mounted on the base plate 56.
  • the lower housing part 54 is closed by a housing cover 68.
  • the structure of a hard disk drive of the type described above is known per se, so that further explanations of the drive are not necessary.
  • the basic construction of the tape drive is also known. It comprises a belt drive with a drive motor 70 and a gear 72, with motor 70 and the elements of the transmission 72 are attached to the base plate 56. As can be seen in FIGS. 2 and 3, the base plate 56 has a shape 74 in a corner region which projects into an unused cavity of the hard disk drive 50. This creates sufficient space to accommodate the tape drive motor 70 so that the tape drive 52 can be kept very flat overall.
  • a shaft 80 is formed, which serves to receive a tape cassette 82, which in the direction of arrow C in
  • Figure 2 can be inserted into the shaft 80.
  • FIGS. 5 to 7 differs from that according to FIGS. 2 to 4 only in that a floppy disk drive 88 is now combined with the hard disk drive 50 instead of the tape drive 52.
  • the parts which correspond to the arrangement according to FIGS. 2 to 4 are again provided with the same reference symbols.
  • the floppy disk drive 88 is also known per se and is therefore only explained schematically. It comprises a drive motor 90 arranged on the base plate 56 for a floppy disk 93 which can be inserted into a guide shaft 92 in the direction of the arrow D in FIG.
  • Read / write heads 94 which can be positioned via a positioning drive 96, are used for writing and reading data to and from the diskette.
  • Space for accommodating the positioning drive 96 was gained by accommodating it in a protuberance 98 in the base plate 56, which protrudes into an unused cavity in the disk drive 50.
  • the electronic components common to the two drives 50 and 88 are in turn arranged on a printed circuit board 84 which is attached to the hard disk drive 50.
  • a hard disk drive 50 is combined with a disk drive for an optical storage disk.
  • This storage unit 100 which is also known in principle in its own right, comprises a drive motor 102 for an optical storage disk 106 which can be inserted into a guide shaft 104.
  • the optical read / write head 108 can be positioned relative to the optical storage disk 106 via a positioning drive 110, whereby the positioning drive 110 is again arranged in a depression 112 of the base plate 56 protruding into the hard disk drive 50 in order to reduce the overall height of the entire storage arrangement.
  • the embodiment according to FIGS. 8 to 10 corresponds to the embodiment according to FIGS. 2 to 4 and 5 to 7.

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Automatic Disk Changers (AREA)

Abstract

L'invention concerne une mémoire électromécanique contenant une première et une deuxième unité mémoire (50, 52), chacune avec un support de stockage dont la position peut être modifiée au moyen d'un entraînement, et comprenant aussi une unité de commande d'entraînement et un dispositif de lecture/écriture associé au support de stockage. Une des unités mémoires (50, 52) est un mécanisme à disques inamovibles encapsulé et les deux unités mémoires (50, 52) sont montés dans la même armoire. Les unités mémoires (50, 52) sont montées de chaque côté de la même plaque de base (56), laquelle fait partie de l'armoire, et au moins des parties des circuits de commande électroniques des deux unités mémoires (50, 52) sont montées sur une plaquette de circuits imprimés commune (84).
PCT/EP1989/000601 1988-11-28 1989-05-30 Memoire electromecanique Ceased WO1990006580A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900701646A KR930008152B1 (ko) 1988-11-28 1989-05-30 전자기 데이타 기억장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8814802.5U 1988-11-28
DE8814802U DE8814802U1 (de) 1988-11-28 1988-11-28 Elektromechanische Datenspeichervorrichtung

Publications (1)

Publication Number Publication Date
WO1990006580A1 true WO1990006580A1 (fr) 1990-06-14

Family

ID=6830260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1989/000601 Ceased WO1990006580A1 (fr) 1988-11-28 1989-05-30 Memoire electromecanique

Country Status (5)

Country Link
EP (1) EP0445115A1 (fr)
JP (1) JPH03505942A (fr)
KR (1) KR930008152B1 (fr)
DE (1) DE8814802U1 (fr)
WO (1) WO1990006580A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018129A1 (fr) * 1996-10-22 1998-04-30 Oce Printing Systems Gmbh Ensemble d'elements pour systeme de montage
FR2770658A1 (fr) * 1997-11-04 1999-04-30 Siemens Nixdorf Information Systems Sa Micro-ordinateur, notamment micro-ordinateur multimedia equipe d'un lecteur de disquettes et de cartes a puce
GB2380596A (en) * 2001-07-07 2003-04-09 Hewlett Packard Co Data backup using a tape drive and a non-volatile memory

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303620A1 (de) * 1993-02-02 1994-08-04 Esd Elect Syst Design Schreib-Lese-Einheit für elektronische Geräte

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020176A2 (fr) * 1979-06-04 1980-12-10 Microcomputer Systems Corp. Appareil de mémoire à disque, à bande, hybride disque-bande, et dispositif d'entraînement
JPS56107370A (en) * 1980-01-31 1981-08-26 Nec Corp Magnetic storage device
EP0069545A2 (fr) * 1981-07-02 1983-01-12 Irwin International, Inc. Appareil d'enregistrement sur disque avec un module intégral en cassette à bande
US4370687A (en) * 1978-03-09 1983-01-25 Tokyo Shibaura Denki Kabushiki Kaisha Magnetic disk apparatus
JPS58211379A (ja) * 1982-09-18 1983-12-08 Canon Electronics Inc 磁気デイスク装置
JPS5994281A (ja) * 1982-11-22 1984-05-30 Hitachi Ltd 磁気デイスク記憶装置
JPS59227077A (ja) * 1983-06-06 1984-12-20 Toshiba Corp 磁気デイスク装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3046481A1 (de) * 1980-12-10 1982-07-22 Ruhrchemie Ag, 4200 Oberhausen Verfahren zur herstellung von ethanol und n-propanol aus methanol
JPS635421A (ja) * 1986-06-26 1988-01-11 Fujitsu Ltd 割込みタイミング制御方式

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370687A (en) * 1978-03-09 1983-01-25 Tokyo Shibaura Denki Kabushiki Kaisha Magnetic disk apparatus
EP0020176A2 (fr) * 1979-06-04 1980-12-10 Microcomputer Systems Corp. Appareil de mémoire à disque, à bande, hybride disque-bande, et dispositif d'entraînement
JPS56107370A (en) * 1980-01-31 1981-08-26 Nec Corp Magnetic storage device
EP0069545A2 (fr) * 1981-07-02 1983-01-12 Irwin International, Inc. Appareil d'enregistrement sur disque avec un module intégral en cassette à bande
JPS58211379A (ja) * 1982-09-18 1983-12-08 Canon Electronics Inc 磁気デイスク装置
JPS5994281A (ja) * 1982-11-22 1984-05-30 Hitachi Ltd 磁気デイスク記憶装置
JPS59227077A (ja) * 1983-06-06 1984-12-20 Toshiba Corp 磁気デイスク装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 177 (P-89)(849) 13 November 1981, & JP-A-56 107370 (NIPPON DENKI K.K.) 26 August 1981, *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 211 (P-303)(1648) 26 September 1984, & JP-A-59 94281 (HITACHI SEISAKUSHO K.K.) 30 Mai 1984, *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 65 (P-263)(1502) 27 Mai 1984, & JP-A-58 211379 (KIYANON DENSHI K.K.) 08 Dezember 1983, *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 105 (P-354)(1828) 09 Mai 1985, & JP-A-59 227077 (TOSHIBA K.K.) 20 Dezember 1984, *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018129A1 (fr) * 1996-10-22 1998-04-30 Oce Printing Systems Gmbh Ensemble d'elements pour systeme de montage
US6246574B1 (en) 1996-10-22 2001-06-12 OCé PRINTING SYSTEMS GMBH Sub-assembly for an assembly system
FR2770658A1 (fr) * 1997-11-04 1999-04-30 Siemens Nixdorf Information Systems Sa Micro-ordinateur, notamment micro-ordinateur multimedia equipe d'un lecteur de disquettes et de cartes a puce
GB2380596A (en) * 2001-07-07 2003-04-09 Hewlett Packard Co Data backup using a tape drive and a non-volatile memory
GB2380596B (en) * 2001-07-07 2005-07-27 Hewlett Packard Co Data backup

Also Published As

Publication number Publication date
EP0445115A1 (fr) 1991-09-11
KR900702535A (ko) 1990-12-07
DE8814802U1 (de) 1990-03-29
KR930008152B1 (ko) 1993-08-26
JPH03505942A (ja) 1991-12-19

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