CN109407963A - A kind of method and device for realizing storage management - Google Patents
A kind of method and device for realizing storage management Download PDFInfo
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- CN109407963A CN109407963A CN201710697291.8A CN201710697291A CN109407963A CN 109407963 A CN109407963 A CN 109407963A CN 201710697291 A CN201710697291 A CN 201710697291A CN 109407963 A CN109407963 A CN 109407963A
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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
- G06F3/0616—Improving the reliability of storage systems in relation to life time, e.g. increasing Mean Time Between Failures [MTBF]
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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
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
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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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
A kind of method and device for realizing storage management, comprising: when carrying out data edition, determine the embedded non-volatile memory space (eflash) of storing data with the presence or absence of idle page；When determining that the space eflash has idle page, data edition is carried out on idle page；Wherein, data edition includes: that data upload or data update.The embodiment of the present invention improves the service life in the space eflash.
Description
Technical field
Present document relates to but be not limited to multimedia technology, espespecially a kind of method and device for realizing storage management.
Background technique
Embedded non-volatile memory eflash can be performed because having in high reliability, low-power consumption and piece, start speed
Fastly, it is widely used in embedded device control, for storing and executing control software.
Eflash, which has, repeats erasable performance, but it is written over number restricted lifetime, with the increasing of erasable number
Add, correspondence is constantly worn by erasable position bit (bit), and the degree of wear is easy to appear after constantly aggravating to be difficult to wipe completely
It (being changed to 1 by 0) and is difficult to be written and (be changed to 0 by 1).
When the partial bit only to eflash carries out frequently erasable, it is easy to cause bad block, influences normally making for eflash
With reducing the bulk life time of eflash.
Summary of the invention
It is the general introduction to the theme being described in detail herein below.This general introduction is not the protection model in order to limit claim
It encloses.
The embodiment of the present invention provides a kind of method and device for realizing storage management, and be able to ascend eflash uses the longevity
Life.
The embodiment of the invention provides a kind of methods for realizing storage management, comprising:
When carrying out data edition, determine the space embedded non-volatile memory eflash of storing data with the presence or absence of sky
Not busy page；
When determining that the space eflash has idle page, data edition is carried out on idle page；
Wherein, the data edition includes: that data upload or data update.
Optionally, when the progress data edition, the method also includes:
On all pages in the space eflash, the write-in that use state information and data edition are added by reserving address is remembered
Record information；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation corresponding to data
Character.
Optionally, the method also includes: following part or all of information is added on the reserved address:
Marking head, editor data version information.
Optionally, it is described carry out data edition on idle page before, the method also includes:
After the occupied space that total memory space of page is subtracted to the mark address, depositing for data edition in page is obtained
Store up space.
Optionally, the progress data editor on idle page includes:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by editor's
Data are written in the page of the free time.
Optionally, when the data edition is that data update, the progress data editor on idle page includes:
It will be copied in pre-set caching page in the preceding data once stored；
To copying to after the data in caching page are updated, updated data are written to determining described idle
In page.
Optionally, it is described carry out data edition on idle page after, the method also includes:
Page where the preceding data once stored are arranged in is containing dirty pages, and the write-in record information that the containing dirty pages are arranged is nothing
Imitate information.
Optionally, when determining that idle page is not present in the space eflash, the method also includes:
Data in containing dirty pages are subjected to erasing processing, to obtain the page of the free time.
On the other hand, the embodiment of the present invention also provides a kind of device for realizing storage management, comprising: determine free cells and
Edit cell；Wherein,
It determines that free cells are used for: when carrying out data edition, determining the embedded non-volatile memory of storing data
The space eflash is with the presence or absence of idle page；
Edit cell is used for: when determination unit determines that the space eflash has idle page, in the idle enterprising line number of page
According to editor；
Wherein, the data edition includes: that data upload or data update.
Optionally, described device further includes adding unit, for all pages in the space eflash, by reserving address
The write-in for adding use state information and data edition records information；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation corresponding to data
Character.
Optionally, the adding unit is also used to:
Add following part or all of information on the reserved address: marking head, editor data version information.
Optionally, described device further includes determining space cell, for total memory space of page to be subtracted the mark ground
After the occupied space of location, the memory space that data edition is used in page is obtained.
Optionally, the edit cell is specifically used for:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by editor's
Data are written in the page of the free time.
Optionally, the edit cell is specifically used for:
When the data edition is that data update, pre-set caching page will be copied in the preceding data once stored
In；
To copying to after the data in caching page are updated, updated data are written to determining described idle
In page.
Optionally, described device further includes setting unit, is dirty for the page where the preceding data once stored are arranged in
Page, and the write-in record information that the containing dirty pages are arranged is invalid information.
Optionally, described device further includes erasing unit, for determining that free cells determine that there is no skies in the space eflash
When the page in spare time, the data in containing dirty pages are subjected to erasing processing, to obtain the page of the free time.
In another aspect, the embodiment of the present invention also provides a kind of computer storage medium, it is stored in computer storage medium
Computer executable instructions, the method that computer executable instructions are used to execute above-mentioned realization storage management.
Also on the one hand, the embodiment of the present invention also provides a kind of terminal, comprising: memory and processor；Wherein,
Processor is configured as executing the program instruction in memory, and memory includes embedded non-volatile memory
The space eflash；
Program instruction reads in processor and executes following operation:
When carrying out data edition, determine the space embedded non-volatile memory eflash of storing data with the presence or absence of sky
Not busy page；
When determining that the space eflash has idle page, data edition is carried out on idle page；
Wherein, the data edition includes: that data upload or data update.
Compared with the relevant technologies, technical scheme includes: when carrying out data edition, to determine the embedded of storing data
The nonvolatile memory space (eflash) is with the presence or absence of idle page；When determining that the space eflash has idle page, in sky
Data edition is carried out on not busy page；Wherein, the data edition includes: that data upload or data update.The embodiment of the present invention mentions
The service life in the space eflash is risen.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the flow chart for the method that the embodiment of the present invention realizes storage management；
Fig. 2 is data structure information of the embodiment of the present invention in reserved address addition；
Fig. 3 is the memory space schematic diagram in page of the embodiment of the present invention for editor；
Fig. 4 is the structural block diagram for the device that the embodiment of the present invention realizes storage management.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is the flow chart for the method that the embodiment of the present invention realizes storage management, as shown in Figure 1, comprising:
When step 100, progress data edition, determine that the space embedded non-volatile memory eflash of storing data is
It is no to there is idle page；
Step 101 when determining that the space eflash has idle page, carries out data edition on idle page；
Wherein, data edition of the embodiment of the present invention includes: that data upload or data update.
After the embodiment of the present invention determines the page that there is the free time, data edition is carried out on idle page, avoids the presence of the free time
Page when, the page in preceding storage is wiped and is written repeatedly, the probability that balanced each bit is written into and wipes improves
The service life in the space eflash.
Optionally, when carrying out data edition, present invention method further include:
On all pages in the space eflash, the write-in that use state information and data edition are added by reserving address is remembered
Record information；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation corresponding to data
Character.
It should be noted that reserved address can be the fixing address in every page, such as the end position of every page
Byte；Use state information can by obtaining in the related technology, pre-set page coding can be it is a kind of in logic
The corresponding page coding of different types of data can be set in coding；Page coding includes that can distinguish data write-in successively
Digital coding.Equally, distinguishing character includes that can distinguish variety classes data and successively can be into the write-in of various types of data
The character that row is distinguished.The erasable operation of eflash will be written or update a certain data as unit of page, when system sends order
When；If data are written, then after data write-in, the addition write-in record information in preset mark address in page, according to write-in
Record information record and the writing position for identifying the page that data are written and each byte of data can carry out the data of write-in quasi-
True reading；It is updated, is then determined in the position of the preceding data once stored according to write-in record information if it is to data,
By the determining position in the preceding data once stored, data are updated.Since the content added in mark address needs
It is repeatedly erasable, and need that power down is avoided to lose, it is therefore desirable to it is write in the space eflash, and because it is corresponding with page,
Therefore, setting mark address carries out content addition on page.
In addition, the embodiment of the present invention can encode or distinguish the mapping relations of the page number of character and page by establishing the page,
The reading of data is carried out according to the mapping relations.
Optionally, present invention method further include: following part or all of information is added on reserved address:
Marking head, editor data version information.
It should be noted that marking head may include real using the marking head of the relevant technologies design, such as the mark present invention
Apply the mark that example is applied to the space eflash.The version information of the data of editor can according to the number that data are updated into
Row determines.
It is 2K with eflash space size, for page size is 512 bytes (bytes), when carrying out storage management, page end tail
Reserved 12 bytes are as reserved address, for storing marking head, use state information, the data of write-in record information and editor
Version information；Fig. 2 is data structure information of the embodiment of the present invention in reserved address addition, the page footing in page being previously used
In 12 bytes, the 1st~3 byte is marking head, the 4th byte be use state information (be not used, used, containing dirty pages),
5th~8 byte is the version information of the data of editor, the 9th~12 byte is write-in record information；Wherein, write-in record information
It can be and preset page coding.
Optionally, before carrying out data edition on idle page, present invention method further include:
After the occupied space that total memory space of page is subtracted to the mark address, depositing for data edition in page is obtained
Store up space.
It should be noted that the data volume that every page is actually written into is able to really after the occupied space for identifying address is subtracted
Fixed, when being written according to logical address, the writing position of each byte of data is it was determined that ought only carry out partial data
When update, after the byte that can determine the data that needs update, which is replaced processing.Fig. 3 is that the present invention is real
The memory space schematic diagram in example page for editor is applied, as shown in figure 3, since reserved address be used to add marking head, use
The version information of the data of status information, write-in record information, and/or editor, therefore can be used for the address of data write-in in page
It tails off, still by taking page size is 512bytes as an example, in the page of 512 bytes, 12 bytes are as reserved address, then every page only has
500 bytes can be used for that logical address is arranged, and carry out the write-in and reading of data.
Optionally, progress data editor on idle page of the embodiment of the present invention includes:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by editor's
Data are written in the page of the free time.
It should be noted that logical address can be using the address for the fixation being set in the related technology, logical address
After being determined with the memory space for being used for data edition in page, can be written in idle page by data are byte-by-byte.It is reading
When, still can according in logical address and page be used for data edition memory space to the position that data stores carry out analysis with
It reads.
Optionally, it is described to carry out data edition on idle page when data edition of the embodiment of the present invention is that data update
Include:
It will be copied in pre-set caching page in the preceding data once stored；
To copying to after the data in caching page are updated, updated data are written to determining described idle
In page.
It here, is the data for needing to update in the preceding data once stored；
Optionally, after carrying out data edition on idle page, present invention method further include:
Page where the preceding data once stored are arranged in is containing dirty pages, and the write-in record information that containing dirty pages are arranged is invalid letter
Breath.
It should be noted that it may include: writing containing dirty pages that the write-in record information that containing dirty pages are arranged here, which is invalid information,
Enter to record information and use as default, or set empty for the write-in record information of containing dirty pages, or deletes the write-in record letter of containing dirty pages
Breath.
Optionally, when determining that idle page is not present in the space eflash, present invention method further include:
Data in containing dirty pages are subjected to erasing processing, to obtain the page of the free time.
It should be noted that containing dirty pages are existing definition in the related technology, and even if being not added with use state information, the present invention
Embodiment can also be determined whether the page of eflash spatially is containing dirty pages by the relevant technologies.The free time only is being not present
Unified erasing processing is carried out when page, makes every page by erasable and write-in data balancing.
Compared with the relevant technologies, technical scheme includes: when carrying out data edition, to determine the embedded of storing data
The nonvolatile memory space (eflash) is with the presence or absence of idle page；When determining that the space eflash has idle page, in sky
Data edition is carried out on not busy page；Wherein, the data edition includes: that data upload or data update.The embodiment of the present invention mentions
The service life in the space eflash is risen.
Fig. 4 is the structural block diagram for the device that the embodiment of the present invention realizes storage management, as shown in figure 4, comprising determining that the free time
Unit and edit cell；Wherein,
It determines that free cells are used for: when carrying out data edition, determining the embedded non-volatile memory of storing data
The space eflash is with the presence or absence of idle page；
Edit cell is used for: when determination unit determines that the space eflash has idle page, in the idle enterprising line number of page
According to editor；
Wherein, the data edition includes: that data upload or data update.
Optionally, the device of that embodiment of the invention further includes adding unit, for all pages in the space eflash, is passed through
The write-in of reserved address addition use state information and data edition records information；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation corresponding to data
Character.
Optionally, adding unit of the embodiment of the present invention is also used to:
Add following part or all of information on the reserved address: marking head, editor data version information.
Optionally, the device of that embodiment of the invention further includes determining space cell, for total memory space of page to be subtracted institute
After the occupied space for stating mark address, the memory space that data edition is used in page is obtained.
Optionally, edit cell of the embodiment of the present invention is specifically used for:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by editor's
Data are written in the page of the free time.
Optionally, edit cell of the embodiment of the present invention is specifically used for:
When the data edition is that data update, pre-set caching page will be copied in the preceding data once stored
In；
To copying to after the data in caching page are updated, updated data are written to determining described idle
In page.
Optionally, the device of that embodiment of the invention further includes setting unit, for being arranged in where the preceding data once stored
Page be containing dirty pages, and be arranged the containing dirty pages write-in record information be invalid information.
It should be noted that it may include: writing containing dirty pages that the write-in record information that containing dirty pages are arranged here, which is invalid information,
Enter to record information and use as default, or set empty for the write-in record information of containing dirty pages, or deletes the write-in record letter of containing dirty pages
Breath.
Optionally, the device of that embodiment of the invention further includes erasing unit, for determining that free cells determine the space eflash
There is no when idle page, the data in containing dirty pages are subjected to erasing processing, to obtain the page of the free time.
It should be noted that containing dirty pages are existing definition in the related technology, and even if being not added with use state information, the present invention
Embodiment can also be determined whether the page of eflash spatially is containing dirty pages by the relevant technologies.
The embodiment of the present invention also provides a kind of computer storage medium, and computer is stored in computer storage medium to be held
Row instruction, the method that computer executable instructions are used to execute above-mentioned realization storage management.
The embodiment of the present invention also provides a kind of terminal, comprising: memory and processor；Wherein,
Processor is configured as executing the program instruction in memory, and memory includes embedded non-volatile memory
The space eflash；
Program instruction reads in processor and executes following operation:
When carrying out data edition, determine the space embedded non-volatile memory eflash of storing data with the presence or absence of sky
Not busy page；
When determining that the space eflash has idle page, data edition is carried out on idle page；
Wherein, the data edition includes: that data upload or data update.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can store in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, one or more integrated circuits also can be used in all or part of the steps of above-described embodiment
It realizes.Correspondingly, each module/unit in above-described embodiment can take the form of hardware realization, such as pass through integrated electricity
Its corresponding function is realized on road, can also be realized in the form of software function module, such as is stored in by processor execution
Program/instruction in memory realizes its corresponding function.The present invention is not limited to the hardware and softwares of any particular form
In conjunction with.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (18)
1. a kind of method for realizing storage management characterized by comprising
When carrying out data edition, determine the space embedded non-volatile memory eflash of storing data with the presence or absence of the free time
Page；
When determining that the space eflash has idle page, data edition is carried out on idle page；
Wherein, the data edition includes: that data upload or data update.
2. the method according to claim 1, wherein when the progress data edition, the method also includes:
On all pages in the space eflash, the write-in that use state information and data edition are added by reserving address records letter
Breath；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation character corresponding to data.
3. according to the method described in claim 2, it is characterized in that, the method also includes: add on the reserved address
Part or all of information below:
Marking head, editor data version information.
4. according to the method in claim 2 or 3, which is characterized in that it is described carry out data edition on idle page before,
The method also includes:
After the occupied space that total memory space of page is subtracted to the mark address, obtain empty for the storage of data edition in page
Between.
5. according to the method described in claim 4, it is characterized in that, the progress data editor on idle page includes:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by the data of editor
It is written in the page of the free time.
6. according to the method described in claim 5, it is characterized in that, the data edition be data update when, it is described in the free time
Page on carry out data editor include:
It will be copied in pre-set caching page in the preceding data once stored；
To copying to after the data in caching page are updated, updated data are written to the page of the determining free time
In.
7. according to the method in claim 2 or 3, which is characterized in that it is described carry out data edition on idle page after, institute
State method further include:
Page where the preceding data once stored are arranged in is containing dirty pages, and the write-in record information that the containing dirty pages are arranged is invalid letter
Breath.
8. the method according to the description of claim 7 is characterized in that determine the space eflash there is no when idle page, it is described
Method further include:
Data in containing dirty pages are subjected to erasing processing, to obtain the page of the free time.
9. a kind of device for realizing storage management characterized by comprising determine free cells and edit cell；Wherein,
It determines that free cells are used for: when carrying out data edition, determining the embedded non-volatile memory eflash of storing data
Space is with the presence or absence of idle page；
Edit cell is used for: when determination unit determines that the space eflash has idle page, data volume is carried out on idle page
Volume；
Wherein, the data edition includes: that data upload or data update.
10. device according to claim 9, which is characterized in that described device further includes adding unit, in eflash
On all pages in space, the write-in that use state information and data edition are added by reserving address records information；
Wherein, the use state information include: used, be not used, containing dirty pages；
Said write records information and is used for reading data, comprising: presets page coding or the differentiation character corresponding to data.
11. device according to claim 10, which is characterized in that the adding unit is also used to:
Add following part or all of information on the reserved address: marking head, editor data version information.
12. device described in 0 or 11 according to claim 1, which is characterized in that described device further includes determining space cell, is used
After the occupied space that total memory space of page is subtracted to the mark address, obtain empty for the storage of data edition in page
Between.
13. device according to claim 12, which is characterized in that the edit cell is specifically used for:
According to the memory space for being used for data edition in the logical address of write-in data and the page determined, by the data of editor
It is written in the page of the free time.
14. device according to claim 13, which is characterized in that the edit cell is specifically used for:
When the data edition is that data update, it will be copied in pre-set caching page in the preceding data once stored；
To copying to after the data in caching page are updated, updated data are written to the page of the determining free time
In.
15. device described in 0 or 11 according to claim 1, which is characterized in that described device further includes setting unit, for setting
Setting in the page where the preceding data once stored is containing dirty pages, and the write-in record information that the containing dirty pages are arranged is invalid information.
16. device according to claim 15, which is characterized in that described device further includes erasing unit, empty for determining
Not busy unit determines that the data in containing dirty pages there is no when idle page, are carried out erasing processing, to obtain the sky by the space eflash
Not busy page.
17. a kind of computer storage medium, computer executable instructions are stored in computer storage medium, computer is executable
Instruction is for executing the method for realizing storage management as described in any one of claim 1~8.
18. a kind of terminal, comprising: memory and processor；Wherein,
Processor is configured as executing the program instruction in memory, and memory includes embedded non-volatile memory eflash
Space；
Program instruction reads in processor and executes following operation:
When carrying out data edition, determine the space embedded non-volatile memory eflash of storing data with the presence or absence of the free time
Page；
When determining that the space eflash has idle page, data edition is carried out on idle page；
Wherein, the data edition includes: that data upload or data update.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634964A (en) * | 2020-12-24 | 2021-04-09 | 潍柴动力股份有限公司 | Data writing method, device and equipment of electronic control unit and storage medium |
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