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WO1993018517A1 - Ensemble de montage pour unites de disques multiples - Google Patents

Ensemble de montage pour unites de disques multiples Download PDF

Info

Publication number
WO1993018517A1
WO1993018517A1 PCT/US1993/002519 US9302519W WO9318517A1 WO 1993018517 A1 WO1993018517 A1 WO 1993018517A1 US 9302519 W US9302519 W US 9302519W WO 9318517 A1 WO9318517 A1 WO 9318517A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
disk drives
housing
disk drive
data processing
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/US1993/002519
Other languages
English (en)
Inventor
Michael Brown
Naniappa Bakthavachalam
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment Corp
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 Digital Equipment Corp filed Critical Digital Equipment Corp
Publication of WO1993018517A1 publication Critical patent/WO1993018517A1/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
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/125—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a plurality of recording/reproducing devices, e.g. modular arrangements, arrays of disc drives
    • G11B33/127—Mounting arrangements of constructional parts onto a chassis
    • G11B33/128—Mounting arrangements of constructional parts onto a chassis of the plurality of recording/reproducing devices, e.g. disk drives, onto a chassis
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1414—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means with power interlock

Definitions

  • the present invention relates to mounting frames for holding a plurality of disk drives during operation in a data processing system. More particularly, the present invention relates to a mounting assembly for holding a plurality of smaller form-factor disk drives in the same physical space as a smaller number of larger form factor disk drives of an earlier technological generation.
  • Disk drive dimensions are typically limited by a form-factor which is an industry standard set of length, width and height dimensions and mounting configurations. If a disk drive is removed from the associated computer for any reason, the computer user loses the capability of accessing information stored thereon.
  • a disk drive configuration comprising redundant arrays of inexpensive disk drives (“RAID") has been developed and is well known to those of ordinary skill in the field. Using RAID, multiple disk drives are configured so that the information stored on any single disk drive is also redundantly stored on at least one of the other disk drives. Therefore, if one disk drive is removed from the sy stem for repair or replacement the information stored thereon is not lost and the data processing system remains operational.
  • An assembly for storing a plurality of disk drives in a RAID configuration while allowing the removal of power to a single disk drive without the removal of power from the other disk drives is desirable.
  • Another problem relates to the conversion of a standard data processing system having a single large form-factor disk drive into a RAID configuration.
  • a predetermined physical space is allocated to the disk drive mounting. If the multiple disk drive assembly does not fit within the standard space allocated then it must be mounted in a separate housing and connected to the data processor through cables or the like.
  • the unused physical opening in the data processor must be covered to prevent accidental or intentional contact with the interior of the processor. Accordingly, it is desirable for the mounting assembly for the RAID configuration to fit within the physical space allocated for a single disk drive in the standard data processing system.
  • the invention in its broad form resides in a mounting assembly for a plurality of disk drives, as recited in claim 1.
  • Described herein is an assembly for mounting a plurality of disk drive units
  • the mounting assembly taught herein can be used in original equipment manufacture or to modify equipment already in the field.
  • the mounting assembly of the present invention facilitates the use of a redundant array of inexpensive disk drives (RAID) in place of a single disk drive in data processing systems such as a standard personal computer (PC).
  • the mounting assembly comprises a housing and a plurality of mounting units which are positioned substantially within the housing. Each mounting unit holds one of a plurality of uniform disk drives. Each mounting unit is equipped with its own separate latch mechanism. Operation of one of these latch mechanisms positively or mechanically secures the mounting unit to the housing and enables the application of power to the corresponding disk drive. Accordingly, while power is being supplied to the disk drive, its associated mounting unit cannot be removed from the housing.
  • each of the mounting units and its associated disk drive is independently removable from the assembly after power to it is disconnected but without disconnecting the power from the other drives or otherwise affecting their basic operation.
  • FIG. 1 is a perspective view of the assembly of the present invention with one of the mounting units removed from the housing.
  • FIG. 2 is a perspective view of one of the mounting units of FIG. 1 holding a single disk drive and including a latching mechanism and with a portion of the mounting unit cut away for clarity.
  • FIG. 3 is a perspective view of a mounting assembly of an embodiment having a plurality of smaller disk drives of one form factor positioned in the standard space normally occupied by a disk drive of another larger form factor in a typical
  • FIG. 4 is a cut away view of the housing of the assembly of FIG. 1 showing the internal structure of the housing.
  • FIG. 5a is a front view of one of the mounting units of FIG. 1 showing the latch mechanism in the unlocked position.
  • FIG. 5b is a front view of one of the mounting units of FIG. 1 showing the latch mechanism in the locked position.
  • FIG. 6a is a side view of one of the mounting units of FIG. 1 with a cut away portion showing the latch mechanism in the unlocked position.
  • FIG. 6b is a side view of one of the mounting units of FIG. 1 with a cut away portion showing the latch mechanism in the locked position.
  • FIG. 7 is a schematic diagram showing the connection between the power source and the disk drive through the respective switches.
  • FIG. 1 is a perspective view of the mounting assembly 100 of an embodiment.
  • the assembly 100 includes a housing 102 that is adapted to receive a plurality of disk drive mounting units 104a through e.
  • Each of the disk drive mounting units 104 a through e is identical and is more fully described hereinafter. It should be understood that in the preferred embodiment, five disk drive mounting units are described but that as few as two such units or more than five units could be used without departing from the scope of the present invention.
  • the inside of the housing 102 is equipped with a backplane connector of the type commonly known in the art to accommodate the disk drives associated with each of the disk drive mounting units 104a through e but is not shown herein for the sake of clarity.
  • the backplane connector interfaces the disk drives with a host computer such as a standard PC.
  • the housing includes power connectors 103a through e of the type commonly known in the art for each disk drive, refer to FIG. 4.
  • the overall width W, length L and height H of the housing 102 must be the same as the conventional or standard single disk drive unit so that the housing 102 will fit into and mount in the same space as the standard single disk drive unit.
  • the housing 102 and the mounting units 104a through e may be constructed from any suitable material.
  • An example of a particularly beneficial material is conductive plastic, which may be injection molded for production quantities.
  • conductive plastic which may be injection molded for production quantities.
  • one or more fans are disposed in the housing 102 or are secured in a separate unit connected to the back of the housing 102 to facilitate cooling of the unit but are not shown herein for the sake of clarity. This latter configuration is desirable because it allows the fans to be changed without opening the housing 102.
  • the fans do not form a part of the present invention.
  • Each of the mounting units 104a through e may be separately removed from the housing 102.
  • the mounting units 104a through e shown in FIG. 1 each include a pair of forward brackets 106 and 108 and a pair of rear brackets 110 and 112 for securely holding a disk drive 114, shown in dotted lines.
  • the disk drive 114 is secured to the mounting unit 104 by any conventional fastening means.
  • An aperture 118 is provided to allow passage of a disk drive connector (not shown) and a power connector (not shown), thereby allowing the disk drive to be interfaced with the backplane connector and power connector in the housing 102.
  • the front face of each mounting unit 104a through e includes an aperture 120 to accommodate a latch mechanism 122 shown in greater detail in FIGs. 2, 5 and 6.
  • the aperture 120 is generally circular with an enlarged quarter circle portion extending from the horizontal axis counterclockwise to the 270° position of the vertical axis (fourth quadrant) and including a wedge shaped portion in third quadrant.
  • the latch mechanism 122 is operated to both supply power to the disk drive
  • the latch mechanism 122 is disengaged to release the physical lock between the mounting unit 104 and the housing 102 and to remove power from the individual disk drive 114 associated with the mounting unit 104 prior to removal of the mounting unit 104 from the housing 102.
  • a detent 126 is provided in the upper surface of the mounting units 104 a through e. The detent
  • the detent 126 is a small rounded protrusion.
  • the detent 126 cooperates with an upper surface mating portion 128 shown in dotted line of the housing 102 to align or position the mounting unit 104 in the housing 102 and to provide tactile feedback that the mounting unit has been properly positioned within the housing 102.
  • a similar detent arrangement may be positioned on another surface of the mounting unit 104 such as the bottom surface.
  • FIG. 2 shows a single mounting unit 104 of the present invention in additional detail. Dashed lines represent a disk drive unit 114 secured within the brackets 106, 108, 110 and 112.
  • a latch mechanism 122 is positioned within the aperture 120.
  • the latch mechanism includes a knob 129 for rotating between a first disengaged position and a second latched position, a spring 130, a stop tab 132 shown in FIGs. 5 and 6, a shaft 134, a cam locking member 136 mounted on the shaft 134 and a contact member 138 mounted on the shaft 134.
  • the shaft 134 extends through the aperture 120 and both the locking member 136 and die contact member 138 are positioned on the shaft 134.
  • the disk drive 114 engages a corresponding backplane connector in the housing 102 as is well known in the art, the disk drive also engages the associated power connector 103 and the detent 126 snaps into the matting recess
  • the latch mechanism 122 operates to mechanically secure the associated mounting unit 104 to the housing 102 when the latch mechanism 122 is positioned to switch power to the disk drive secured therein.
  • the latch mechanism 122 also operates to mechanically release the associated mounting unit 104 when positioned to remove power from the associated disk drive.
  • the construction and operation of the preferred latch mechanism 122 is fully described below with respect to FIGs. 5 and
  • a particularly beneficial use of the described arangement is to allow a
  • FIG. 3 is a general illustration of the typical PC having a processor base 139, a display monitor 140, a mouse or similar I/O device 142.
  • the housing 102 is positioned within the standard opening normally used for a single disk drive unit.
  • FIG. 4 is a cut away illustration of the housing 102 with connectors or plugs
  • 103a through e positioned on the back wall 150.
  • Five compartments 152a through e are formed by the backplane 150, the front plane 154, the side walls 156 and 158 and the four separating panels 160a through d.
  • Contact switches 162a through e are mounted respectively on each separating wall 160a through d and side wall 158.
  • Each switch 162a through e is positioned to engage the contact member 138 of latching mechanism 122 when the mechanism is rotated to the locked position refer to HGs. 5 and 6.
  • Any type of well known switch or switch circuit capable of closing the circuit from the power source to the disk when engaged by the contact member 138 and opening the circuit when disengaged from the contact member 138 can be used for this purpose.
  • Recesses 164a through e are positioned respectively in each separating wall 160a through d and side wall 156.
  • Each recess 164a through e is positioned in a location substantially forward of switches 162a through e respectively on the opposing wall and adapted to engage cam member 136 of latch mechanism 122 when the mechanism is rotated to the locked position, refer to HGs. 5 and 6.
  • FIG. 5a and FIG. 5b are front views of the mounting unit 104 showing the latch mechanism 122 in the unlocked and locked position respectively.
  • the latch mechanism 122 is used to selectively enable a switch to apply power to the individual disk drive secured in a corresponding mounting unit 104 in the housing 102. Because individual disk drives may be powered down independently, mounting units 104 containing disk drives 114 may be removed from the assembly 100 of the arrangement without disruption to the operation of the host computer.
  • the latch mechanism 122 is in the locked position the
  • corresponding mounting unit 104 cannot be accidently or intentionally removed from the housing 102 thereby preventing possible damage to the disk drive cased by removing the mounting unit 104 while power is applied to die disk drive.
  • FIG. 5a illustrates the latch mechanism 122 in the unlocked position.
  • a knob or handle 129 is in a substantially horizontal position.
  • the aperture 120 as described above receives the shaft 134 including the cam member 136 and contact member
  • FIG. 6a shows a partial cross sectional view of the mounting unit 104 including the latching mechanism 122 still in the unlocked position.
  • the stop tab 132 is mounted on the shaft 134 and is positioned for movement within the enlarged quarter circle or fourth quadrant portion of aperture 120.
  • the stop tab 132 contacts the top most portion of the aperture 120 at the 0° point.
  • the cam locking member 136 points in a substantially downward direction and contact member 138 points in substantially the upward direction.
  • the spring 130 is not compressed.
  • FIG. 5b illustrates the latch mechanism 122 in the locked position.
  • the entire latch mechanism 122 has been pressed into the mounting unit 104 compressing the spring 130.
  • the knob 129 is rotated counterclockwise 90°.
  • the contact member 138 is now substantially horizontal and the cam locking member 136 is substantially horizontal.
  • FIG. 6b shows the shaft 134 moved into me housing 104 and the spring 130 compressed. While the latching mechanism 122 is in the locked position, if an attempt is made to remove the mounting unit 104 from the housing 102, the locking cam member 136 in contact with the recess 164 prevents movement of the mounting unit 104 and absorbs the force being applied. Accordingly, little or no force is exerted between the contact member 138 and switch 162 thereby preventing damage to the switch 162.
  • FIG. 7 is a simplified circuit diagram showing me switches 162a through e in circuit between each of the disk drives 114 and die source of electrical power 166 when the mounting units 104a through e are positioned widiin the housing 102.
  • each of the disk drives is positioned within a mounting unit which has a latching mechanism and is removable from the assembly.
  • the latching mechanism When the latching mechanism is enabled, it physically retains the mounting unit within the assembly and provides power to the disk drive.
  • the latching mechanism When the latching mechanism is disengaged no power is applied to die disk drive and die mounting unit can be withdrawn from the assembly. Accordingly, individual mounting units and their respective disk drives can be disconnected from the power source and removed from the assembly without affecting the operation of the other disk drives.
  • a housing assembly for holding multiple disk drives which might comprise redundant arrays of inexpensive disk drives (RAID).
  • RAID redundant arrays of inexpensive disk drives
  • a disk drive should not be removed for maintenance or replacement purposes when the power supply to die disk drive is on.
  • Each disk drive as described hereinbefore, has its own latching mechanism. Disengaging a latching mechanism not only releases the mechanical locking of the mounting unit to die housing, but also disable the application of electrical power from only the associated disk drive whereby the system is not damaged.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

Un ensemble de montage pour des unités de disques possède plusieurs unités de disques d'un seul facteur de forme montées dans le même espace physique d'un système de traitement de données que l'espace qui serait occupé par une unité de disque ayant un facteur de forme plus grand, provenant d'une manière générale d'une génération technologique antérieure d'unités de disques. L'ensemble de montage facilite l'utilisation d'un réseau redondant d'unités de disques peu coûteuses (RAID) en lieu et place d'une unité de disque simple dans des systèmes de traitement de données. L'ensemble de montage contient plusieurs unités de disques uniformes et chaque unité est fixée dans l'ensemble à l'aide d'un mécanisme de verrouillage séparé. Le fonctionnement de chacun de ces mécanismes de verrouillage permet de verrouiller mécaniquement l'unité dans l'ensemble et permet l'alimentation électrique uniquement à l'unité de disque associée. L'unité de disque ne peut être retirée de l'ensemble lorsque celle-ci est connectée et reçoit une puissance électrique. L'ouverture de chacun des mécanismes de verrouillage élimine le verrou mécanique et empêche l'application de puissance électrique uniquement à l'unité de disque associée. Chacune des unités peut être retirée de manière indépendante de l'ensemble sans déconnecter l'alimentation électrique des autres unités ni affecter autrement leur fonctionnement.
PCT/US1993/002519 1992-03-09 1993-03-08 Ensemble de montage pour unites de disques multiples Ceased WO1993018517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84871092A 1992-03-09 1992-03-09
US848,710 1992-03-09

Publications (1)

Publication Number Publication Date
WO1993018517A1 true WO1993018517A1 (fr) 1993-09-16

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ID=25304069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/002519 Ceased WO1993018517A1 (fr) 1992-03-09 1993-03-08 Ensemble de montage pour unites de disques multiples

Country Status (1)

Country Link
WO (1) WO1993018517A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714984A1 (fr) * 1994-01-10 1995-07-13 Vuillemin Jean Remy Système économique destiné à rendre amovible le disque dur interne des micro-ordinateurs pour le traitement des informations classifiées.
GB2266615B (en) * 1992-05-02 1995-08-16 Int Computers Ltd Disk drive array
GB2328547A (en) * 1997-08-19 1999-02-24 Chang Cheng Chun Diskdrive sliding case system
NL1009875C2 (nl) * 1998-08-14 2000-04-26 Wen Kao Wu Rek van het lade-type voor een diskette-eenheid.
GB2349012A (en) * 1999-04-17 2000-10-18 John Knott Data recording apparatus
EP1026688A3 (fr) * 1999-02-02 2001-06-13 Siemens Information and Communication Networks Inc. Système d'entrainement de disques multiples intégré et amovible
GB2381370A (en) * 2001-09-08 2003-04-30 Hewlett Packard Co Disk drive support apparatus and method
US6614653B2 (en) 2001-10-03 2003-09-02 International Business Machines Corporation Disk drive insertion tool and method
EP1261245A3 (fr) * 2001-05-22 2004-01-21 Hewlett-Packard Company Méthode et appareil de connexion
US6693859B1 (en) 2001-04-26 2004-02-17 International Business Machines Corporation Gripper assembly apparatus for interfacing with a storage device
US6731455B2 (en) 2001-04-26 2004-05-04 International Business Machines Corporation Automated library system including a gripper assembly apparatus for interfacing with a storage device
WO2006072100A3 (fr) * 2004-12-29 2006-09-08 Intel Corp Systeme de verrouillage de carte de circuit
US20240055026A1 (en) * 2022-08-15 2024-02-15 Microsoft Technology Licensing, Llc Drive secure cover plate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071722A (en) * 1976-08-31 1978-01-31 Bell Telephone Laboratories, Incorporated Latch and switch interlock safety structure
US4119818A (en) * 1976-01-02 1978-10-10 Burndy Corporation Interconnecting module
GB2153130A (en) * 1984-01-17 1985-08-14 Norand Corp Disk drive system
EP0378282A2 (fr) * 1987-02-25 1990-07-18 Tandon Corporation Module de disques durs et réceptacle pour ce module
EP0425176A2 (fr) * 1989-10-27 1991-05-02 International Business Machines Corporation Châssis adaptateur de dispositif
WO1991020083A1 (fr) * 1990-06-15 1991-12-26 International Business Machines Corporation Element electrique amovible

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119818A (en) * 1976-01-02 1978-10-10 Burndy Corporation Interconnecting module
US4071722A (en) * 1976-08-31 1978-01-31 Bell Telephone Laboratories, Incorporated Latch and switch interlock safety structure
GB2153130A (en) * 1984-01-17 1985-08-14 Norand Corp Disk drive system
EP0378282A2 (fr) * 1987-02-25 1990-07-18 Tandon Corporation Module de disques durs et réceptacle pour ce module
EP0425176A2 (fr) * 1989-10-27 1991-05-02 International Business Machines Corporation Châssis adaptateur de dispositif
WO1991020083A1 (fr) * 1990-06-15 1991-12-26 International Business Machines Corporation Element electrique amovible

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266615B (en) * 1992-05-02 1995-08-16 Int Computers Ltd Disk drive array
FR2714984A1 (fr) * 1994-01-10 1995-07-13 Vuillemin Jean Remy Système économique destiné à rendre amovible le disque dur interne des micro-ordinateurs pour le traitement des informations classifiées.
GB2328547A (en) * 1997-08-19 1999-02-24 Chang Cheng Chun Diskdrive sliding case system
NL1009875C2 (nl) * 1998-08-14 2000-04-26 Wen Kao Wu Rek van het lade-type voor een diskette-eenheid.
EP1026688A3 (fr) * 1999-02-02 2001-06-13 Siemens Information and Communication Networks Inc. Système d'entrainement de disques multiples intégré et amovible
GB2349012B (en) * 1999-04-17 2003-05-28 John Knott Electronic apparatus
GB2349012A (en) * 1999-04-17 2000-10-18 John Knott Data recording apparatus
US6310777B1 (en) 1999-04-17 2001-10-30 John Knott Electronic apparatus
US6693859B1 (en) 2001-04-26 2004-02-17 International Business Machines Corporation Gripper assembly apparatus for interfacing with a storage device
US6731455B2 (en) 2001-04-26 2004-05-04 International Business Machines Corporation Automated library system including a gripper assembly apparatus for interfacing with a storage device
EP1261245A3 (fr) * 2001-05-22 2004-01-21 Hewlett-Packard Company Méthode et appareil de connexion
GB2381370B (en) * 2001-09-08 2005-05-25 Hewlett Packard Co Disk drive support apparatus and methods
GB2381370A (en) * 2001-09-08 2003-04-30 Hewlett Packard Co Disk drive support apparatus and method
US6693796B2 (en) 2001-09-08 2004-02-17 Hewlett-Packard Development Company, L.P. Disk drive support apparatus and methods
US6614653B2 (en) 2001-10-03 2003-09-02 International Business Machines Corporation Disk drive insertion tool and method
WO2006072100A3 (fr) * 2004-12-29 2006-09-08 Intel Corp Systeme de verrouillage de carte de circuit
US7209364B2 (en) 2004-12-29 2007-04-24 Intel Corporation Circuit board latch system
US20240055026A1 (en) * 2022-08-15 2024-02-15 Microsoft Technology Licensing, Llc Drive secure cover plate
US12131757B2 (en) * 2022-08-15 2024-10-29 Microsoft Technology Licensing, Llc Drive secure cover plate

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