CN105280239B - A kind of method and apparatus of dynamic implement solid state hard disc ECC check code - Google Patents
A kind of method and apparatus of dynamic implement solid state hard disc ECC check code Download PDFInfo
- Publication number
- CN105280239B CN105280239B CN201510695468.1A CN201510695468A CN105280239B CN 105280239 B CN105280239 B CN 105280239B CN 201510695468 A CN201510695468 A CN 201510695468A CN 105280239 B CN105280239 B CN 105280239B
- Authority
- CN
- China
- Prior art keywords
- ecc
- code
- check
- solid state
- state hard
- 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.)
- Active
Links
Abstract
The method and apparatus that the invention discloses a kind of dynamic implement solid state hard disc ECC check code, sets ECC check code check unit for solid hard disk storage system；Multistage ECC check code check is preset for solid hard disk storage system；In solid-state hard disk controller, record each ECC check code check unit presently used ECC check code check by ECC check rate tables；Solid state hard disc life cycle early stage, use the ECC check code check that ECC code length is shorter；When storage medium starts to become unreliable, progressively use the ECC check code check that ECC code length is longer；Until the late period of solid state hard disc life cycle, ECC check code check unit just can use the ECC check code check that ECC code length is the longest.The present invention can be on the premise of not losing solid state hard disc reliability, by dynamically controlling ECC check code length, in making solid state hard disc life cycle in early days, it is obtained in that more user data storage, reduce solid state disk write to amplify, improve solid state disk read-write efficiency, extend solid state hard disc service life.
Description
Technical field
The method and apparatus that the present invention relates to a kind of dynamic implement solid state hard disc ECC check code.
Background technology
Solid state hard disc, due to plurality of advantages such as its performance are high, reliability is high, has become as current most popular storage device, and application is more and more extensive.And the essential reason that solid state hard disc has this advantage is owing to which employs the physical form that the signal of telecommunication stores as information.But the storage medium of the signal of telecommunication also has some shortcomings that it is intrinsic, one of them the biggest problem is exactly reliability the instability that the signal of telecommunication stores on a storage medium.And due to the development of solid state hard disc industry, the storage medium in the urgent need to low cost is the most commercial, increasing unstable storage medium is used on solid state hard disc.This situation causes the data being stored on solid state hard disc the most all may make mistakes.
Due to the existence of the problems referred to above, solid state hard disc commonly uses the mode of the ECC check code that user data adds certain length to ensure the reliability of data.I.e. user data through solid-state hard disk controller when, by controller to incoming data by certain unit plus ECC check code.Owing to ECC check code has correction wrong data, so data read-out when, controller can obtain correct data by ECC check code.Its main occupation mode such as Fig. 1.
Meanwhile, the mathematical characteristic of ECC check code determines: for the initial data of same length, if ECC check code is the longest, then the ability of error correction is the strongest, and the ability of mistake is bigger i.e. to allow initial data to occur.ECC check code length and relation such as Fig. 2 of error correcting capability.
Above-mentioned existing scheme effectively solves the data unreliability problem that solid state hard disc storage medium instability is brought.But also bring some negative effects, i.e. need the solid state hard disc certain additional space of storage medium consumption to deposit ECC check code, so this adds somewhat to solid state hard disc write amplification, the most just have impact on the data effective bandwidth of solid state hard disc, add the abrasion of solid state hard disc, reduce the life-span of solid state hard disc.When solid state hard disc has certain user data, on storage medium, the actual state of storage is as shown in Figure 3.
Due to solid state hard disc storage medium itself, the possibility of its corrupt data, As time goes on, meeting is more and more higher.The possibility of corrupt data is with the relation of time as shown in Figure 4.
Summary is got up, and currently existing scheme is through consuming certain memory space to deposit ECC, to ensure the reliability of data.But the code length of ECC check data arranges too short, error correcting capability can be made to decline, reduce the life cycle of solid state hard disc；Code length arranges long, in the life early stage of solid state hard disc, can waste more memory space, bring extra negative effect.
Summary of the invention
The technical problem to be solved is, not enough for prior art, it is provided that the method and apparatus of a kind of dynamic implement solid state hard disc ECC check code.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of method of dynamic implement solid state hard disc ECC check code, comprises the following steps:
1) be solid hard disk storage system set ECC check code check unit, using have identical ECC check code length memory space as an ECC check code check unit；
2) it is that solid hard disk storage system presets multistage ECC check code check；
3) in solid-state hard disk controller, each ECC check code check unit presently used ECC check code check is recorded by ECC check rate tables；
4) when solid state hard disc works, the interpolation/verification of ECC check code is carried out with the benchmark that is recorded as of ECC check rate tables；
In above-mentioned steps 4) carry out the interpolation/verification of ECC check code after; along with the working time of solid state hard disc increases; solid state hard disc becomes more and more unreliable; therefore need the rank improving ECC to protect data; i.e. in ECC check rate tables; use ECC check code length more higher leveled ECC check code check (such as whenever the ECC error that appearance can not be entangled; or when the condition that an ECC check code check unit is changed triggers; after i.e. improving one-level ECC check code check, carry out the interpolation/verification of ECC check code).
Present invention also offers the device of a kind of dynamic implement solid state hard disc ECC check code, including:
ECC
Code rate tables: be used for recording the ECC code rate that current memory space uses, the base unit calculated using ECC code rate as ECC, is also that base unit and the result of dynamically adjustment embodies carrier simultaneously；
ECC
Code generation module: be used for being written of data, produces protection and is written of the ECC check code of data reliability, according to the setting of ECC code rate tables, produce the ECC check code of multiple different length；
ECC
Code correction verification module: be used for the ECC check code subsidiary according to the data read, the data that verification is read are the most correct, and ECC code correction verification module mode of operation is corresponding with ECC code generation module, and corresponding relation produces association by ECC code rate tables；
Memory space ageing state Observation Blocks: for observing the state of solid state hard disc memory space, judge the ageing state in each space in solid state hard disc, and when the condition that an ECC code rate unit is changed triggers, the code check changing the corresponding unit in ECC code rate tables encodes；
Solid state hard disc memory space: be used to data, the physical storage medium of ECC check code information that storage is read.
Compared with prior art, the had the beneficial effect that present invention of the present invention using have identical ECC check code length memory space as an ECC check code check unit, and record each ECC check code check unit presently used ECC check code check by ECC check rate tables, therefore without depositing ECC by consumption memory space, ensure that the reliability of data, reduce the abrasion of solid state hard disc, extend the service life of solid state hard disc；Using the ECC check code check that ECC code length is shorter solid state hard disc life cycle early stage, the probability made mistakes due to the early time data of solid state hard disc life cycle is relatively low, has the most both saved memory space, has not the most reduced the reliability of data；To the late period of solid state hard disc life cycle, just there will be the longest ECC code rate and occur on a large scale, this achieves the balance in data reliability and service efficiency to the full extent；The present invention can be on the premise of not losing solid state hard disc reliability, by dynamically controlling ECC check code length, in making solid state hard disc life cycle in early days, it is obtained in that more user data storage, reduce solid state disk write to amplify, improve solid state disk read-write efficiency, extend solid state hard disc service life.
Accompanying drawing explanation
Fig. 1 is the occupation mode schematic diagram that solid state hard disc passes through ECC check code protection data；
Fig. 2 is the relation schematic diagram of ECC check code length and error correcting capability；
Fig. 3 is under the state that solid state hard disc has some user data, the situation schematic diagram that storage medium is used；
Fig. 4 is the possibility relation schematic diagram with the solid state hard disc use time of solid state hard disc corrupt data；
Fig. 5 be the present invention method in the schematic diagram that changes over time of ECC check code check；
Fig. 6 is specific embodiments of the present invention schematic diagram.
Detailed description of the invention
It is as follows that the present invention realizes process:
1) it is that solid hard disk storage system sets ECC check code check unit, i.e. has the memory space of identical ECC check code length as an ECC check code check unit；In the system operation in later stage, holding is fixed by this unit set；
2) it is that solid hard disk storage system presets multistage ECC check code check, so-called ECC check code check, it is simply that in fixed storage space, the ratio of the memory space shared by memory space data protected with it that ECC is consumed；This code check reflects the relation of ECC check code length and protected User Data Length；So the information of 1bit just can represent 2 kinds of relations, the information of 2bit just can represent 4 kinds of relations, the like, can be with little memory space, just can characterize a lot of relation, such as 4bit can represent 16 kinds of relations；And one relation, it is actually a kind of ECC code length and describes；
3) in solid-state hard disk controller, each ECC check code check unit presently used ECC check code check is recorded by ECC check rate tables；This table is used for inquiring about for controller, and which kind of code check is each storage cell use under current state；This also makes different storage cell use different code check to become feasible；
4) owing to, solid state hard disc life cycle early stage, the probability of corrupt data is relatively low, so the ECC check code check that employing ECC code length is shorter, the most both saved memory space, the most do not reduced the reliability of data；
5) aging along with solid state hard disc, when storage medium starts to become unreliable, the most progressively uses the ECC check code check that ECC code length is longer；The precision changed due to ECC code length is ECC check code check unit, it is possible to allow the most aging memory space use the code check that code length is longer；The schematic diagram that ECC check code check changes over time is as shown in Figure 5.
6) until the late period of solid state hard disc life cycle, just there will be the longest ECC code rate and occur on a large scale, this achieves the balance in data reliability and service efficiency to the full extent.
The embodiment of the present invention such as Fig. 6, ECC code rate tables is set during system initialization, the memory space of whole system is artificially divided for ECC code rate unit by this table, unit 0 in Fig. 6 is an ECC code rate unit, memory space in one code check unit all uses identical ECC code code check, i.e. has identical ECC code long；In system operation, ECC code generation module and ECC code correction verification module, by ECC code rate tables, know which kind of code check is these data to be processed use；Memory space ageing state Observation Blocks by observe memory space state, carry out the ageing state in each space in judgement system, it is judged that method such as: when some ECC check code check unit occurs in that the mistake that current ECC code length can not be corrected；When the condition that an ECC code rate unit is changed triggers, the code check of the corresponding unit changed in ECC code rate tables is encoded by memory space ageing state Observation Blocks；Afterwards, ECC code generation module and ECC code correction verification module are because of using ECC code rate tables to do ECC reference, so the follow-up upgrading being achieved that ECC code；As above-mentioned, in the life cycle of solid state hard disc, it is achieved that the dynamic configuration of ECC check code.
Claims (2)
1. the method for a dynamic implement solid state hard disc ECC check code, it is characterised in that comprise the following steps:
1) be solid hard disk storage system set ECC check code check unit, using have identical ECC check code length memory space as an ECC check code check unit；
2) it is that solid hard disk storage system presets multistage ECC check code check；
3) in solid-state hard disk controller, each ECC check code check unit presently used ECC check code check is recorded by ECC check rate tables；
4) when solid state hard disc works, the interpolation/verification of ECC check code is carried out with the benchmark that is recorded as of ECC check rate tables；
5) increase along with the working time of solid state hard disc, when the ECC error that can not entangle occurs, or when the condition that an ECC check code check unit is changed triggers, then in ECC check rate tables, improve one-level ECC check code check, carry out the interpolation/verification of ECC check code.
2. the device of a dynamic implement solid state hard disc ECC check code, it is characterised in that including:
ECC code rate tables: be used for recording the ECC code rate that current memory space uses, the base unit calculated using ECC code rate as ECC, is also that base unit and the result of dynamically adjustment embodies carrier simultaneously；
ECC code generation module: be used for being written of data, produces protection and is written of the ECC check code of data reliability, according to the setting of ECC code rate tables, produce the ECC check code of multiple different length；
ECC code correction verification module: be used for the ECC check code subsidiary according to the data read, the data that verification is read are the most correct, ECC code correction verification module mode of operation is corresponding with ECC code generation module, corresponding relation produces association by ECC code rate tables, i.e. ECC code generation module and ECC code correction verification module, by ECC code rate tables, know which kind of code check is these data to be processed use；
Memory space ageing state Observation Blocks: for observing the state of solid state hard disc memory space, judge the ageing state in each space in solid state hard disc, and when the condition that an ECC code rate unit is changed triggers, change the code check of the base unit that the ECC in ECC code rate tables calculates；The condition that ECC code rate unit is changed i.e. improves one-level ECC check code check；
Solid state hard disc memory space: be used to data, the physical storage medium of ECC check code information that storage is read.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695468.1A CN105280239B (en) | 2015-10-22 | 2015-10-22 | A kind of method and apparatus of dynamic implement solid state hard disc ECC check code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695468.1A CN105280239B (en) | 2015-10-22 | 2015-10-22 | A kind of method and apparatus of dynamic implement solid state hard disc ECC check code |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105280239A CN105280239A (en) | 2016-01-27 |
| CN105280239B true CN105280239B (en) | 2016-09-07 |
Family
ID=55149105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695468.1A Active CN105280239B (en) | 2015-10-22 | 2015-10-22 | A kind of method and apparatus of dynamic implement solid state hard disc ECC check code |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105280239B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015880B (en) * | 2016-01-28 | 2020-06-30 | 京微雅格（北京）科技有限公司 | FPGA circuit and configuration file processing method thereof |
| CN108255633B (en) * | 2016-12-28 | 2021-07-30 | 旺宏电子股份有限公司 | Storage control method and storage device |
| CN110333965B (en) * | 2019-05-30 | 2023-05-26 | 深圳市博德越科技有限公司 | Solid state disk controller device and solid state disk data verification method |
| CN110704274A (en) * | 2019-09-06 | 2020-01-17 | 苏州浪潮智能科技有限公司 | Temperature control method, device and equipment for solid state disk |
| CN116257383A (en) * | 2021-12-09 | 2023-06-13 | 华为技术有限公司 | Data error correction method, device, memory controller and system |
| CN115562902A (en) * | 2022-01-11 | 2023-01-03 | 荣耀终端有限公司 | Storage area coding method and device and related equipment |
| CN114995767B (en) * | 2022-06-22 | 2022-12-06 | 北京得瑞领新科技有限公司 | Data management method, storage device and storage medium of solid state disk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831028A (en) * | 2012-09-07 | 2012-12-19 | 苏州国芯科技有限公司 | ECC (error correction code) error correction method and system based on data bus |
| CN103533045A (en) * | 2013-10-12 | 2014-01-22 | 江苏华丽网络工程有限公司 | Method for high-performance fault tolerance of PCIE (Peripheral Component Interface Express) data link layer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8006166B2 (en) * | 2007-06-12 | 2011-08-23 | Micron Technology, Inc. | Programming error correction code into a solid state memory device with varying bits per cell |
| US8533550B2 (en) * | 2010-06-29 | 2013-09-10 | Intel Corporation | Method and system to improve the performance and/or reliability of a solid-state drive |
-
2015
- 2015-10-22 CN CN201510695468.1A patent/CN105280239B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831028A (en) * | 2012-09-07 | 2012-12-19 | 苏州国芯科技有限公司 | ECC (error correction code) error correction method and system based on data bus |
| CN103533045A (en) * | 2013-10-12 | 2014-01-22 | 江苏华丽网络工程有限公司 | Method for high-performance fault tolerance of PCIE (Peripheral Component Interface Express) data link layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105280239A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105280239B (en) | A kind of method and apparatus of dynamic implement solid state hard disc ECC check code | |
| JP6129328B2 (en) | Adaptive error correction codes for data storage systems. | |
| US8539195B2 (en) | Non-volatile memory device with non-evenly distributable data access | |
| CN102073563B (en) | The management method of storage block and system in flash memory device, flash memory device | |
| US20110191654A1 (en) | Adjustable error correction code length in an electrical storage device | |
| CN106486170B (en) | The potential bad block localization method and device of solid state hard disk | |
| CN102394114B (en) | BCH code error correction method capable of adaptive error correction | |
| WO2008066605A3 (en) | System for optimizing the performance and reliability of a storage controller cache offload circuit | |
| CN106415502A (en) | Data storage method and device | |
| CN104991738A (en) | Solid state disk and read and write operation method thereof | |
| CN105551522A (en) | Management method and management apparatus of flash memory storage device | |
| CN104810056A (en) | NAND flash memory error controller based on self-adaptive LDPC (low density parity check) code | |
| CN110007861A (en) | A kind of method for reading data and device | |
| CN104794066A (en) | Storage apparatus and method for selecting storage area where data is written | |
| CN102880432A (en) | Method and system for increasing writing speeds of flash memory chips by aid of limited lives of data and controller of system | |
| CN110765041B (en) | Self-adaptive Nand Flash read-write speed adjusting system | |
| US7685333B2 (en) | Method and system for communicating with memory devices utilizing selected timing parameters from a timing table | |
| CN107943610A (en) | A kind of method of lifting SSD comprehensive performances | |
| KR20030051393A (en) | Write-once memory device including non-volatile memory for temporary storage | |
| CN102591825A (en) | Transmitting device and method between SATA (Serial Advanced Technology Attachment) controller and flash controller based on SYNC mechanism | |
| CN111459409B (en) | Optimized flash memory solid-state disk heating method and flash memory solid-state disk | |
| CN114442960A (en) | Solid-state storage scheme free of fear abnormal power failure and capable of prolonging service life | |
| CN111414271B (en) | Storage method based on self-adaptive storage redundancy strategy | |
| CN111324283B (en) | Memory device | |
| US8487777B2 (en) | Semiconductor storage apparatus and early-warning systems and methods for the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160127 Assignee: Jiangsu Xinsheng Intelligent Technology Co., Ltd. Assignor: GOKE MICROELECTRONICS CO., LTD. Contract record no.: 2018430000021 Denomination of invention: Method and device for dynamically realizing ECC check codes of solid state drives Granted publication date: 20160907 License type: Common License Record date: 20181203 |
|
| EE01 | Entry into force of recordation of patent licensing contract |