WO2014127650A1 - 一种数据保护方法、装置及设备 - Google Patents
一种数据保护方法、装置及设备 Download PDFInfo
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- WO2014127650A1 WO2014127650A1 PCT/CN2013/087153 CN2013087153W WO2014127650A1 WO 2014127650 A1 WO2014127650 A1 WO 2014127650A1 CN 2013087153 W CN2013087153 W CN 2013087153W WO 2014127650 A1 WO2014127650 A1 WO 2014127650A1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
-
- 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
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
- G06F11/1012—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using codes or arrangements adapted for a specific type of error
-
- 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
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
- G06F11/1048—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using arrangements adapted for a specific error detection or correction feature
-
- 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
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1666—Error detection or correction of the data by redundancy in hardware where the redundant component is memory or memory area
- G06F11/167—Error detection by comparing the memory output
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/065—Replication mechanisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
Definitions
- the present invention relates to the field of information technologies, and in particular, to a data protection method, apparatus, and device.
- BACKGROUND OF THE INVENTION In some special fields, some data and files are very important. If data is lost or errors often cause significant losses, due to the characteristics of electronic products, it is impossible to have completely reliable storage devices, and there is no way. It ensures that all data is not lost or is in error.
- the traditional reading and writing of the data of the storage unit in the storage device the storage unit stores the data from the host according to the write command of the host device, and returns the corresponding storage data to the host according to the read command of the host.
- this storage is not completely reliable, the data stored in the storage unit may be lost or in error.
- Embodiments of the present invention provide a data protection method, apparatus, and device, which can implement efficient storage device data protection.
- a data protection method including: when receiving a write command of a bearer address and a data to be stored sent by a master device, writing the to-be-stored data into a storage unit a first storage space corresponding to the address, and the protection data corresponding to the to-be-stored data is written into the second storage space corresponding to the address in the protection unit; When the command is read, determining, according to the stored data in the first storage space and the stored data in the second storage space, the restored data of the data to be stored; using the restored data as response data of the read command .
- the protection unit includes at least two protection subunits, and the second storage space includes a storage subspace corresponding to the address of each of the at least two protection subunits.
- Writing the protection data corresponding to the data to be stored to the second storage space corresponding to the address in the protection unit includes: writing the protection data to each of the at least two protection subunits and the The storage subspace corresponding to the address.
- Determining, according to the storage data in the first storage space and the storage data in the second storage space, the restoration data of the data to be stored includes: according to the storage data in the first storage space and the The stored data in each of the storage subspaces in the second storage space determines the restored data.
- the method further includes: performing conversion processing on the data to be stored according to a data conversion mode to obtain the protection data.
- Determining the restoration data according to the storage data in the first storage space and the storage data in each storage subspace in the second storage space comprises: following the data conversion mode, The stored data in the first storage subspace in the second storage space is subjected to inverse conversion processing for the conversion processing to obtain data after the first inverse conversion processing; determining storage data in the first storage space and the first Storing the data in the first storage space as the first data; When the first determination result is no, the reverse conversion processing for the conversion processing is performed on the stored data in the second storage subspace in the second storage space, and the second inverse conversion processed data is obtained, and according to The stored data in the first storage space, the first inverse conversion processed data, and the second inverse converted processed data determine the restored data.
- Determining the restored data according to the stored data in the first storage space, the first inverse conversion processed data, and the second inverse transformed processed data includes: determining the first inverse conversion processing Whether the data is consistent with the data after the second inverse conversion processing, obtaining a second determination result; and when the second determination result is YES, processing the first inverse conversion processed data and the second inverse conversion processing Any one of the subsequent data is determined as the restored data; when the second determination result is negative, the stored data in the first storage space is determined as the restored data.
- the data conversion mode is obtained by the master device configuration.
- a data protection apparatus including: a write module, configured to: when the write command of the bearer address and the data to be stored sent by the master device is received, the file to be stored The data is written into the first storage space corresponding to the address in the storage unit, and the protection data corresponding to the data to be stored is written into the second storage space corresponding to the address in the protection unit; determining module, setting Determining, according to the storage data in the first storage space and the storage data in the second storage space, the restoration data of the data to be stored, when receiving the read command carrying the address sent by the primary device; The response module is configured to use the restored data as response data of the read command.
- the protection unit includes at least two protection subunits, and the second storage space includes a storage subspace corresponding to the address of each of the at least two protection subunits.
- the writing module includes: a writing unit, configured to write the to-be-stored data into the first unit corresponding to the address in the storage unit when receiving the write command of the carrying address and the data to be stored sent by the master device And storing the protection data in a storage subspace corresponding to the address of each of the at least two protection subunits.
- the determining module includes: a determining unit, configured to: according to the read command carrying the address sent by the master device, according to the storage data in the first storage space and each storage in the second storage space The stored data in the subspace determines the restored data.
- the device further includes: a conversion module configured to perform conversion processing on the data to be stored according to a data conversion mode to obtain the protection data.
- the determining unit includes: a conversion subunit, configured to perform inverse conversion processing on the data stored in the first storage subspace in the second storage space according to the data conversion mode, to obtain a An inverse determination processing unit; the first determining subunit, configured to determine whether the stored data in the first storage space is consistent with the inverse conversion processed data corresponding to the first storage subspace, and obtain a first determination result a first determining subunit, configured to determine, when the first determination result is YES, the stored data in the first storage space as the restored data; and the second determining subunit, configured to be the first When the result of the determination is no, the reverse conversion processing for the conversion processing is performed on the stored data in the second storage subspace in the second storage space, and the second inverse conversion processed data is obtained, and according to the first The restored data is determined by the stored data in the storage space, the first inverse converted processed data, and the
- the second determining subunit includes: a second determining subunit, configured to determine whether the data after the first inverse conversion processing is consistent with the data after the second inverse conversion processing, to obtain a second determination result; a subunit, configured to determine any one of the first inverse conversion processed data and the second inverse transformed processed data as the restored data when the second determination result is YES; fourth determining The subunit is configured to determine the stored data in the first storage space as the restored data when the second determination result is no.
- a storage device including a main device, an interface control unit, a storage unit, and a protection unit, where the interface control unit is respectively connected to a main device, a storage unit, and a protection unit,
- the interface control unit includes the data protection device described above.
- the protection data corresponding to the data to be stored is written into the protection unit, and when the corresponding read command is received, the restoration data of the data to be stored is determined according to the storage data in the protection unit and the storage unit, and is used as a read.
- the response data of the command enables efficient storage device data protection.
- FIG. 2 is a schematic diagram of a conventional storage device design structure
- FIG. 3A is a schematic diagram of a storage device design structure with real-time protection function
- Figure 3A is a schematic diagram of the implementation of the interface control unit in Figure 3A
- Figure 4 is a schematic diagram of the data writing process of the storage device with real-time protection
- Figure 5 is a schematic diagram of the data reading process of the storage device with real-time protection
- Figure 6 is a schematic diagram of the automatic data repair process .
- an embodiment of the present invention provides a data protection method, where the method includes the following steps: Step 101: After receiving a primary device, Writing the address and the write command of the data to be stored, writing the to-be-stored data to the first storage space corresponding to the address in the storage unit, and writing protection data corresponding to the to-be-stored data a second storage space corresponding to the address in the unit; Step 102, when receiving a read command that carries the address sent by the master device, according to the stored data in the first storage space and the second storage space The stored data is determined, and the restored data of the data to be stored is determined; Step 103, the restored data is used as response data of the read command.
- the protection data may include the error correction data of the data to be stored, and the determining the data to be stored according to the storage data in the first storage space and the storage data in the second storage space.
- the restoring the data may include: performing an error detection operation on the stored data in the first storage space according to the error correction data in the second storage space, and obtaining an error detection result; when the error detection result is an error, The stored data in the first storage space is determined as the restored data; when the error detection result is that there is no error, the stored data in the first storage space is subjected to error correction processing according to the error correction data, and error correction processing is obtained. After the data, the error correction processed data is determined as the restored data.
- the protection unit may include at least two protection subunits
- the second storage space may include a storage subspace corresponding to the address of each of the at least two protection subunits
- the second storage space corresponding to the address in the protection data write protection unit corresponding to the to-be-stored data may include: Writing the protection data to a storage subspace corresponding to the address of each of the at least two protection subunits respectively; the storing according to the storage data in the first storage space and the storage in the second storage space
- determining the restoration data of the data to be stored may include: determining the restoration data according to the storage data in the first storage space and the storage data in each storage subspace in the second storage space.
- Step 604 compare the restored data 1 and the restored data 2, if they are consistent, confirm that the restored data is correct; repair the storage unit data according to the restored data, and return the restored data 1 or the restored data 2 (ie, The "accurate data" in the figure is given to the Host; Step 605, the process ends.
- the embodiment of the present invention further provides a data protection device, where the device includes: a write module, configured to write the to-be-stored data when receiving a write command of a bearer address and a data to be stored sent by the master device a first storage space corresponding to the address in the storage unit, and writing protection data corresponding to the to-be-stored data into a second storage space corresponding to the address in the protection unit; determining a module, configured to receive Determining the restored data of the to-be-stored data according to the stored data in the first storage space and the stored data in the second storage space when the read command of the address is sent to the master device; The response module is configured to use the restored data as response data of the read command.
- a write module configured to write the to-be-stored data when receiving a write command of a bearer address and a data to be stored sent by the master device a first storage space corresponding to the address in the storage unit, and writing protection data corresponding to the to-be-stored data into a
- the restoration data of the data to be stored is determined according to the storage data in the protection unit and the storage unit, and is used as a read command. Responsive data, enabling efficient storage device data protection.
- the protection unit may include at least two protection sub-units, and the second storage space may include a storage subspace corresponding to the address of each of the at least two protection sub-units;
- the writing module may include: a writing unit, configured to write the to-be-stored data into the first storage space corresponding to the address in the storage unit when receiving the write command of the carrying address and the data to be stored sent by the master device, and The protection data is respectively written into the storage subspace corresponding to the address of each of the at least two protection subunits;
- the determining module may include: a determining unit, configured to receive the reading of the address sent by the primary device At the time of the command, the restored data is determined according to the stored data in the first storage space and the stored data in each of the storage subspaces in the second storage space.
- the second determining subunit may include: a second determining subunit, configured to determine whether the data after the first inverse conversion processing is consistent with the data after the second inverse conversion processing, and obtain a second determination result; a third determining subunit, configured to determine any one of the first inverse conversion processed data and the second inverse transformed processed data as the restored data when the second determination result is YES; And a fourth determining subunit, configured to determine the stored data in the first storage space as the restored data when the second determining result is no.
- the embodiment of the invention further provides a storage device.
- the storage device includes a main device, an interface control unit, a storage unit, and a protection unit.
- the interface control unit is separately connected to the main device, the storage unit, and the protection unit, and the interface control unit includes the data protection device described above.
- the interface control unit may be composed of a programmable logic (PLD) or an ASIC chip.
- PLD programmable logic
- ASIC application specific integrated circuit
- the technical solution provided by the present invention writes protection data corresponding to data to be stored into a protection unit, and when receiving a corresponding read command, determines restoration data of data to be stored according to stored data in the protection unit and the storage unit. As the response data of the read command, it realizes efficient storage device data protection.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/769,636 US10191670B2 (en) | 2013-02-22 | 2013-11-14 | Method and device of data protection, storage equipment |
JP2015558333A JP6231135B2 (ja) | 2013-02-22 | 2013-11-14 | データ保護方法、装置及び設備 |
KR1020157022327A KR102114642B1 (ko) | 2013-02-22 | 2013-11-14 | 데이터 보호 방법, 장치 및 설비 |
EP13875479.1A EP2960777B1 (en) | 2013-02-22 | 2013-11-14 | Data protection method, apparatus and device |
Applications Claiming Priority (2)
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CN201310057355.X | 2013-02-22 | ||
CN201310057355.XA CN104008069B (zh) | 2013-02-22 | 2013-02-22 | 一种数据保护方法、装置及设备 |
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WO2014127650A1 true WO2014127650A1 (zh) | 2014-08-28 |
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PCT/CN2013/087153 WO2014127650A1 (zh) | 2013-02-22 | 2013-11-14 | 一种数据保护方法、装置及设备 |
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US (1) | US10191670B2 (zh) |
EP (1) | EP2960777B1 (zh) |
JP (1) | JP6231135B2 (zh) |
KR (1) | KR102114642B1 (zh) |
CN (1) | CN104008069B (zh) |
WO (1) | WO2014127650A1 (zh) |
Families Citing this family (8)
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US10579613B2 (en) * | 2017-08-08 | 2020-03-03 | International Business Machines Corporation | Database recovery using persistent address spaces |
CN109635598A (zh) * | 2017-10-09 | 2019-04-16 | 中兴通讯股份有限公司 | 一种数据保护方法、装置及存储介质 |
US10528422B2 (en) | 2017-11-13 | 2020-01-07 | Stmicroelectronics International N.V. | Redundant storage of error correction code (ECC) checkbits for validating proper operation of a static random access memory (SRAM) |
CN110083478B (zh) * | 2018-01-25 | 2024-04-19 | 东莞力晶科技有限公司 | 一种数据恢复方法、数据恢复系统以及固态硬盘 |
US11194477B2 (en) * | 2018-01-31 | 2021-12-07 | Micron Technology, Inc. | Determination of a match between data values stored by three or more arrays |
DE102018112816A1 (de) * | 2018-05-29 | 2019-12-05 | Infineon Technologies Ag | Adresscodierter Zugriff auf Speicher |
CN109992444A (zh) * | 2019-03-25 | 2019-07-09 | 深圳忆联信息系统有限公司 | 一种基于硬件的端对端数据保护方法、装置、计算机设备及存储介质 |
CN111125794B (zh) * | 2019-12-31 | 2023-09-26 | 海光云芯集成电路设计(上海)有限公司 | 访存控制方法、系统及存储装置控制器 |
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- 2013-02-22 CN CN201310057355.XA patent/CN104008069B/zh active Active
- 2013-11-14 US US14/769,636 patent/US10191670B2/en active Active
- 2013-11-14 JP JP2015558333A patent/JP6231135B2/ja active Active
- 2013-11-14 WO PCT/CN2013/087153 patent/WO2014127650A1/zh active Application Filing
- 2013-11-14 KR KR1020157022327A patent/KR102114642B1/ko active IP Right Grant
- 2013-11-14 EP EP13875479.1A patent/EP2960777B1/en active Active
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Also Published As
Publication number | Publication date |
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US10191670B2 (en) | 2019-01-29 |
EP2960777B1 (en) | 2020-01-01 |
JP2016511901A (ja) | 2016-04-21 |
US20150378630A1 (en) | 2015-12-31 |
KR102114642B1 (ko) | 2020-06-08 |
EP2960777A4 (en) | 2016-02-24 |
JP6231135B2 (ja) | 2017-11-15 |
EP2960777A1 (en) | 2015-12-30 |
KR20150120366A (ko) | 2015-10-27 |
CN104008069B (zh) | 2018-06-15 |
CN104008069A (zh) | 2014-08-27 |
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