WO2006087694A2 - Systeme de protection et de recuperation conçu pour un lecteur de disque dur - Google Patents

Systeme de protection et de recuperation conçu pour un lecteur de disque dur Download PDF

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Publication number
WO2006087694A2
WO2006087694A2 PCT/IL2005/000205 IL2005000205W WO2006087694A2 WO 2006087694 A2 WO2006087694 A2 WO 2006087694A2 IL 2005000205 W IL2005000205 W IL 2005000205W WO 2006087694 A2 WO2006087694 A2 WO 2006087694A2
Authority
WO
WIPO (PCT)
Prior art keywords
recovery
hard disk
disk drive
protection
hdd
Prior art date
Application number
PCT/IL2005/000205
Other languages
English (en)
Other versions
WO2006087694A3 (fr
Inventor
Dov Shoam
Original Assignee
Dov Shoam
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 Dov Shoam filed Critical Dov Shoam
Priority to PCT/IL2005/000205 priority Critical patent/WO2006087694A2/fr
Priority to US11/816,441 priority patent/US20080155216A1/en
Priority to PCT/IL2005/000825 priority patent/WO2006087695A2/fr
Publication of WO2006087694A2 publication Critical patent/WO2006087694A2/fr
Publication of WO2006087694A3 publication Critical patent/WO2006087694A3/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1458—Management of the backup or restore process
    • G06F11/1469—Backup restoration techniques

Definitions

  • the present invention relates generally to computer hardware and software and more particularly to hardware-based recovery systems for hard disk drives (HDD) for personal computers.
  • HDD hard disk drives
  • Ravid describes a hardware-based recovery system.
  • the Ravid system employs both working and back-up hard disk drives and, in particular, the HDD protection and recovery apparatus (controller board) 10 of Ravid is plugged in between the computer and a HDD of the system.
  • the back-up HDD can be put into use via an A-B switch 14.
  • the back-up HDD is not selected, it remains “invisible” to the operating system.
  • the back-up HDD can be accessed selectively and/or incrementally.
  • the present invention is directed towards a hardware-based recover system.
  • An internal universal serial bus (USB)-based or personal computer interface (PCI based card is plugged into a slot of a personal computer.
  • the internal card functions to create multiple recovery points, where a recovery point is a snapshot of the state of the HDD (image) at time stamps/events.
  • recovery is permitted even if the operating system (e.g., MS-Windows, MS-NT, MS-CE, UNK 5 LINUX, MAC-OS, PALM-OS, etc.) has crashed, failed, or been disabled/tampered with; If the recovery hardware is not found (because the recovery hardware was inserted into an incorrect slot, or the recovery hardware is not the correct recovery hardware), the operating system cannot be loaded and the computer is disabled. Additionally, the recovery system can be arranged to work prior to the operating system being loaded. If desired, the protection and recovery system creates multiple recovery points and automatically selects a preferred point for recovery operations.
  • the operating system e.g., MS-Windows, MS-NT, MS-CE, UNK 5 LINUX, MAC-OS, PALM-OS, etc.
  • a recovery system when a personal computer has a failure (e.g., an operation system crash, configuration changes, lost data, virus attack, etc.) a recovery system can be used to automatically return the computer to a preferred previous state.
  • a failure e.g., an operation system crash, configuration changes, lost data, virus attack, etc.
  • a recovery system can be used to automatically return the computer to a preferred previous state.
  • recovery for complex software related failures is accomplished without the need for commensurate technical skills. Should a failure occur, the computer could return to one of several recovery points.
  • the above features may be integrated with a personal electronic key feature, where a PC boot is only permitted to occur when the personal electronic key is inserted.
  • FIG. 1 shows a computer system, including a personal computer (PC), constructed in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a schematic view of a portion of the system of FIG. 1;
  • FIG. 3 shows another computer system, including a laptop or notebook computer, constructed in accordance with another preferred embodiment of the present invention
  • FIG. 4 shows another computing system, including a handheld computing device such as a Palm or personal digital assistant (PDA), constructed in accordance with another preferred embodiment of the present invention
  • a handheld computing device such as a Palm or personal digital assistant (PDA)
  • PDA personal digital assistant
  • FIG. 5 is a schematic view of a portion of die system of FIG. 1, showing a hardware configuration
  • FIG. 6 is a flowchart illustrating the operation of a recovery system in accordance with the preferred embodiments of the present invention.
  • FIG. 7 is a flowchart illustrating recovery from a system crash in accordance with the present invention. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS -
  • FIG. 1 a PC system 05 constructed in accordance with a preferred embodiment of the present invention.
  • the PC system 05 has a plurality of peripherals such as printer 10 and scanner 15.
  • Printer 10 is connected to PC 05 via a connecting cable 45.
  • Scanner 15 is also connected to PC 05 via a connecting cable 50.
  • the PC 05 has a keyboard 55 and a monitor 60.
  • PC 05 also has a HDD (not shown in • FIG. 1) and any combination or all of the following peripheral devices: a modem, a mouse, multimedia devices including for example a digital camera, a zip drive (not shown) or other peripherals available for PC systems.
  • PC 05 is shown having a tower 20 (see FIGs. 1 and 2), which houses components and cards/boards (e.g. mother board, graphics board, math accelerator board, etc.).
  • PC 05 may be any brand or type of PC including SUN, MAC, eMAC, powerMAC.
  • PC 05 is not limited as to use and may be used for any purpose including as small servers, network servers, etc.
  • the tower 20 has slots into which are plugged cards or boards.
  • the slots may be personal computer interface (PCI) slots or universal serial bus (USB) slots and the cards/boards, which are plugged into the slots, are correspondingly PCI-cards/boards or USB -cards/boards.
  • the PC 05 may have a horizontal unit to house its components and cards/boards.
  • the illustrated HDD protection and recovery card 30 is one such device that is plugged into one of the available (unused) slots 25 of tower 20 depending on the recovery system option (PCI or USB) selected.
  • the protection and recovery system has two alternative embodiments when used with PCs 05 - as a PCI-card/board for use in slots 25 or as a USB-card/board for use in slots 25.
  • the underlying circuitry may be essentially the same even where the interface is different.
  • FIG. 3 is an alternative preferred embodiment of the present invention used with a laptop or notebook computer.
  • HDD protection and recovery device 35 replaces HDD protection and recovery card 30.
  • the protection and recovery device 35 plugs into a USB port of the laptop or notebook computer.
  • the HDD protection and recovery system of the present invention includes a HDD protection and recovery card/board or a HDD protection and recovery device and software installed and configured to operate the HDD recovery and protection card or device by creating at least one recovery point and permitting the recovery of the HDD from the at least one recovery point.
  • FIG. 4 is an embodiment of a micro-HDD protection and recovery .
  • device 40 used for micro-HDD protection and recovery for a handheld computing device such as a PDA or PALM 05b.
  • the micro-HDD protection and recovery device is attached operationally to the handheld computing device via an expansion slot or expansion box having a USB port.
  • a micro-hard disk drive is smaller in size but operates similarly to a hard disk drive and all references herein to a hard disk drive include a micro-hard disk drive, in particular, when used with a handheld computing device.
  • the use of the term HDD below is intended to include micro-HDD, flash- HDD and any other HDDs for use in any kind/type of laptops, notebook computers, PCs and handheld computing devices.
  • protection and recovery device may be used in any embedded computing device such as are operable in cars, home appliances, such as TV sets, etc.
  • the hardware interface for embedded computing devices may be different and the external appearance of the device may also be different but the underlying logic circuitry is the same.
  • the HDD protection and recovery system of the present invention uses both hardware and software.
  • the hardware is in the form of protection and recovery logic circuitry (a card for PCs and a device for laptops, notebook computers and handheld computing devices).
  • the logic circuitry will be referred to as apparatus hereinafter to include both a card and a device.
  • the software is installed on the PC and executed each time the system is booted. Either or both of these illustrative embodiments or the combination may be implemented in hardware, in software, in firmware, as Application Specific Integrated Circuits (ASICs) or Field Programmable Gate Arrays (FPGAs) or any combination thereof.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • FIG. 5 is a schematic view of a portion of the HDD protection and recovery apparatus.
  • the HDD protection recovery apparatus is physically on a card that is plugged into an available slot coupled to the PCI bus of a PC.
  • Both embodiments are cards that are inserted into free slots- coupled to the PCI bus of a PC.
  • the logic may be essentially the same for both embodiments.
  • the interface may be different depending on whether the user selects a USB interface or a PCI interface.
  • the protection and recovery apparatus is a device that plugs into a USB port.
  • the USB device module 60 of the HDD protection and recovery apparatus using a USB port is denominated Option A in FIG. 5 and the PCI device module 70 of the HDD protection and recovery apparatus using a PCI port is denominated Option B in FIG. 5. Since the logic circuitry is essentially the same, only Option A will be described. Option B operates similarly.
  • the HDD protection and recovery apparatus includes driver module 90, and one of USB device module and PCI device module.
  • the HDD protection and recovery apparatus also interfaces with the HDD in which are stored snapshots of the HDD at user-specified recovery points.
  • the HDD is partitioned. The components of the HDD will not be described except for those affected by or used by the protection and recovery system.
  • the HDD protection and recovery apparatus is plugged into an available USB slot.
  • the USB device module 60 of the HDD protection and recovery apparatus interfaces bi-directionally with the PCI bus 80 of a PC via an interface 69. Information and control is exchanged between bus interface 68 and interface 69.
  • Driver module 90 includes an ID verification module 94 and a recovery module 92.
  • Driver module 90 interfaces directly with USB device module 60 via interface 102. That is, information and control signals do not use the PCI bus of the PC system 05.
  • Buffer 62 forwards data to bus interface 68 in response to control signals from driver module 90 that have been forwarded to flash memory 66 and stored therein.
  • the programmable device ID is stored in programmable device ID module 64 and is used in conjunction with the ID verification module of driver module 90.
  • the PC system 05 may have at ieast 4GB HDDs with at least 500MB free disk space. Any anti-virus software and any virus protection in BIOS is disabled prior to installation of the HDD protection and recovery apparatus. After turning off the power to the PC and removing its cover, the protection and recovery apparatus is inserted into a free slot. Once the card is properly seated, then the cover is put back on the tower and the power is turned back on. Once the PC is running, execution of MS Windows in an appropriate version is initiated. In the case of laptop/notebook computers and handheld computing devices, installation of an HDD protection and recovery device 35, 40 is via a USB port and does not require the removal of the cover for installation.
  • Configuration includes setting the manager's password and the user's name and password.
  • the manager's password may be saved to a floppy disk.
  • configuration of the software portion of the HDD protection and recovery system includes the option to enable or disable features such as a user's name and password, restore and save.
  • Back-up points may be desirable, for example, immediately prior to installation of new software or after a database update or at some other event. Back-up points may also be set daily, weekly, bi-weekly or monthly.
  • One option for accomplishing automatic saving and HDD restoration is to display a menu upon each boot/reboot for the user to select the restoration point.
  • Another option is to have the HDD protection and recovery system save a new back-up point at every boot with a fixed time interval (daily, weekly, monthly, etc.). The HDD protection and recovery system will add a new restoration point at the next boot but only if the system was working for a period of time longer than the specified fixed time interval.
  • Another option is to configure the HDD to recover the protected partition to "Point 0" during every system boot.
  • a further option is to select scheduled HDD restoration to "Point 0" at fixed time intervals.
  • Yet another option is to keep the last status of a protected partition even if the PC system is rebooted.
  • FIG. 6 is a flowchart of the operation of the recovery portion (software) 600 of the HDD protection and recovery system.
  • the PC is powered on by a user at step 605 and the PC is booted at step 610.
  • a check is made upon booting for the HDD protection and recovery apparatus at step 615.
  • a subsequent check is made to determine if the HDD protection and recovery apparatus has a USB module at step 620 or a PCI module at step 625. If the PC has neither, or neither module is detected due to improper installation, then the system will be prevented from booting at step 630 until a personal electronic key is inserted.
  • the driver module 90 of the HDD protection and recovery apparatus has the ID verification module 94, which is used for ID verification.
  • the recovery software stored in Recovery Software module 92 is loaded at step 635.
  • a menu appears and the user is prompted to select user or manager mode at step 640. If user mode is selected then the user is prompted to select at step 645 from among the following: adding a point, keeping the current status or restoring the system. If the user selects adding a point, then a new restore/back-up point will be added at step 650. If the user selects keeping the current status, then the data is kept in the temporary data storage area 58 at step 655. If the user selects restoration, then the user is prompted to select a restoration point from a set of restoration points at step 660.
  • step 640 If the user selects manager mode at step 640, then the manager is given the option of restoring the HDD or saving the HDD at step 665. If the manager selects the restore option, then the HDD is restored to "Point 0" at step 670. Upon the completion of either step 660 or 670 the temporary data is cleared from the temporary dats storage area at step 675. If the manager selects the save option, then the data stored in the temporary data storage area 58 is permanently saved as a new Point 0 and the temporary data storage area 58 is cleared at step 680. Upon the completion of any of steps 650, 655, 675 or 680, the Windows operating system is initiated at step 685. Data is collected in accordance with the configuration of the HDD protection and recovery system at step 690,
  • FIG. 7 is a flowchart illustrating HDD recovery from a system crash.
  • the recovery portion of the HDD protection and recovery system starts at step 705.
  • Step 710 is a query to determine if there has, in fact, been a HDD crash. If there has not been s HDD crash, then the recovery process ends at step 715.
  • step 720 determines if the ' pre-selected recovery process was recovery from a pre-selected recovery point. If this option was selected, then the HDD is restored from the pre-selected recovery point at step 725. The option then ends at step 740. If the option to use a pre-selected recovery point was not selected at system configuration, then HDD recovery is made by sequentially applying all available recovery points in time order.
  • a counter "i" is initialized to 0 at step 730.
  • the counter is checked to make sure it has not been incremented to exceed the number of recovery points "n” by checking the counter against "n+1" at step 735. If all of the recovery points have been applied, then the recovery process ends at step 740. If all recovery points have not as yet been applied, then the next recovery point is applied at step 745. The counter is then incremented at step 750.
  • step 755 could be performed at anytime after step 720 or between any steps thereafter or viewed as an interrupt to restart the recovery process.
  • the HDD protection and recovery system of the present invention may be arranged for use on laptop computers, notebook computers and handheld computing devices. Handheld computing devices typically use the PALM OS operating system.

Abstract

L'invention concerne un système de protection et de récupération conçu pour un lecteur de disque dur, permettant d'effectuer des opérations de récupération même lorsque le système d'exploitation (par ex. MS-Windows, etc.) a planté, est défaillant, ou qu'il a été bloqué/manipulé. Si le logiciel de récupération est introuvable, le système d'exploitation ne peut pas être chargé, et l'ordinateur est bloqué. Le système selon l'invention crée plusieurs points de récupération et sélectionne automatiquement un point préféré pour les opérations de récupération ou applique séquentiellement les points de restauration/sauvegarde de manière chronologique.
PCT/IL2005/000205 2005-02-17 2005-02-17 Systeme de protection et de recuperation conçu pour un lecteur de disque dur WO2006087694A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/IL2005/000205 WO2006087694A2 (fr) 2005-02-17 2005-02-17 Systeme de protection et de recuperation conçu pour un lecteur de disque dur
US11/816,441 US20080155216A1 (en) 2005-02-17 2005-08-02 Protection and Recovery System for Automatic Disk Recovery
PCT/IL2005/000825 WO2006087695A2 (fr) 2005-02-17 2005-08-02 Systeme de protection et de recuperation conçu pour la recuperation automatique de lecteur de disque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2005/000205 WO2006087694A2 (fr) 2005-02-17 2005-02-17 Systeme de protection et de recuperation conçu pour un lecteur de disque dur

Publications (2)

Publication Number Publication Date
WO2006087694A2 true WO2006087694A2 (fr) 2006-08-24
WO2006087694A3 WO2006087694A3 (fr) 2007-05-18

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PCT/IL2005/000205 WO2006087694A2 (fr) 2005-02-17 2005-02-17 Systeme de protection et de recuperation conçu pour un lecteur de disque dur
PCT/IL2005/000825 WO2006087695A2 (fr) 2005-02-17 2005-08-02 Systeme de protection et de recuperation conçu pour la recuperation automatique de lecteur de disque

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PCT/IL2005/000825 WO2006087695A2 (fr) 2005-02-17 2005-08-02 Systeme de protection et de recuperation conçu pour la recuperation automatique de lecteur de disque

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100492305C (zh) * 2007-01-24 2009-05-27 北京蓝科泰达科技有限公司 一种计算机系统的快速恢复方法及设备
CN103678517B (zh) * 2013-11-27 2017-01-18 华为技术有限公司 修复硬盘逻辑错误的方法及控制器

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US5448045A (en) * 1992-02-26 1995-09-05 Clark; Paul C. System for protecting computers via intelligent tokens or smart cards
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US5448045A (en) * 1992-02-26 1995-09-05 Clark; Paul C. System for protecting computers via intelligent tokens or smart cards
US5966727A (en) * 1996-07-12 1999-10-12 Dux Inc. Combination flash memory and dram memory board interleave-bypass memory access method, and memory access device incorporating both the same
US6052764A (en) * 1997-12-19 2000-04-18 Compaq Computer Corportion Computer data restoration assembly and associated method
US6901493B1 (en) * 1998-02-24 2005-05-31 Adaptec, Inc. Method for protecting data of a computer system
US6778346B2 (en) * 2000-03-30 2004-08-17 Sony Corporation Recording and reproducing apparatus and file managing method using the same
US6907512B2 (en) * 2002-05-21 2005-06-14 Microsoft Corporation System and method for filtering write operations to a storage medium containing an operating system image

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Also Published As

Publication number Publication date
WO2006087695A3 (fr) 2007-09-07
WO2006087694A3 (fr) 2007-05-18
WO2006087695A2 (fr) 2006-08-24

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