CN107315546A - A kind of method and system of solid state hard disc low-level formatting - Google Patents
A kind of method and system of solid state hard disc low-level formatting Download PDFInfo
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- CN107315546A CN107315546A CN201710559392.9A CN201710559392A CN107315546A CN 107315546 A CN107315546 A CN 107315546A CN 201710559392 A CN201710559392 A CN 201710559392A CN 107315546 A CN107315546 A CN 107315546A
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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
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
- G06F3/0623—Securing storage systems in relation to content
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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
- G06F3/064—Management of blocks
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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
- G06F3/0683—Plurality of storage devices
- G06F3/0688—Non-volatile semiconductor memory arrays
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Abstract
This application discloses a kind of method of solid state hard disc low-level formatting, including：The quantity of namespace in solid state hard disc is obtained, and identification obtains the corresponding amount of capacity of each namespace；For namespace physics logical block is distributed according to its corresponding amount of capacity；Wherein, the quantity of physical logic block and amount of capacity are proportional；The write request that main frame is issued writes corresponding physical logic block；According to the low-level formatting order received, all data on physics logical block are wiped.This method is by the way that for multiple namespace in solid state hard disc, distribution is specific to the physical logic block of the namespace, and independence when improving data storage, the flow and step for simplifying low-level formatting improve the efficiency of low-level formatting.Disclosed herein as well is a kind of system of solid state hard disc low-level formatting, with above-mentioned beneficial effect.
Description
Technical field
The application is related to solid state hard disc administrative skill field, the method for more particularly to a kind of solid state hard disc low-level formatting and
System.
Background technology
With the continuous improvement of data storage technology, the faster solid state hard disc of read or write speed has progressed into our regard
Open country, as its name suggests, solid state hard disc are the hard disks being made of solid-state electronic storage chip array, single by control unit and storage
Member, i.e. FLASH chip and dram chip are constituted.Meanwhile, most solid state hard disc all supports many namespace (NameSpace), or
Originally complete memory space is relatively independent memory space according to namespace different demarcation by more exclusive subregion,
And the scene for requiring that low-level formatting operation is individually carried out according to namespace difference often occurs in practical application.
The existing method for individually carrying out low-level formatting operation for different namespace, because when data are deposited all
By all namespace data be not added with distinguish be stored on all block of solid state hard disc (physical logic block), so meeting
Causing different namespace data can fall on same block, and when carrying out low-level formatting operation by namespace
Other namespace data can not be destroyed, the data on each block are identified and performed with recovery behaviour so may require that
Make, complex steps, time-consuming, efficiency is low.
So, how for multiple namespace in solid state hard disc, distribution is specific to the physical logic of the namespace
Block there is provided one kind the data storage between different namespace it is separate, without recognize again and recycling step, by namespace
The solid state hard disc low-level formatting mechanism can directly be wiped during low-level formatting is that those skilled in the art are urgently to be resolved hurrily
The problem of.
The content of the invention
The purpose of the application is to provide a kind of method and system of solid state hard disc low-level formatting, by solid state hard disc
Multiple namespace, distribution is specific to the physical logic block of the namespace, independence, letter when improving data storage
Change the flow and step of low-level formatting, improve the efficiency of low-level formatting.
In order to solve the above technical problems, the application provides a kind of method of solid state hard disc low-level formatting, this method includes：
The quantity of namespace in solid state hard disc is obtained, and recognizes and obtains the corresponding capacity of each described namespace
Size；
For the namespace physics logical block is distributed according to its corresponding amount of capacity；Wherein, the physical logic block
Quantity and the amount of capacity it is proportional；
The corresponding physical logic block of write request write-in that main frame is issued；
According to the low-level formatting order received, all data on the physical logic block are wiped.
Optionally, write request main frame issued writes the corresponding physical logic block, including：
The write request that Receiving Host is issued, and extract from the write request namespace information of carrying；
The write request is write by the corresponding physical logic block according to the namespace information.
Optionally, this method also includes：
The total capacity of the namespace is less than the total capacity of the corresponding physical logic block.
Optionally, according to the low-level formatting order received, all data on the physical logic block, bag are wiped
Include：
The low-level formatting order is obtained, and is extracted from the low-level formatting order described in carrying
Namespace information；
According to all data on the namespace information erasings correspondence physical logic block.
Present invention also provides a kind of system of solid state hard disc low-level formatting, the system includes：
Quantity capacity acquisition unit, the quantity for obtaining namespace in solid state hard disc, and identification obtains each institute
State the corresponding amount of capacity of namespace；
Physical logic block designating unit, for being patrolled for the namespace according to its corresponding amount of capacity distribution physics
Collect block；Wherein, the quantity and the amount of capacity of the physical logic block are proportional；
Writing unit, the write request for main frame to be issued writes the corresponding physical logic block；
Unit is wiped, for according to the low-level formatting order received, wiping all numbers on the physical logic block
According to.
Optionally, said write unit includes：
First extracts subelement, the write request issued for Receiving Host, and extracts what is carried from the write request
Namespace information；
Subelement is write, is patrolled for the write request to be write into the corresponding physics according to the namespace information
Collect block.
Optionally, the system also includes：
Limiting unit, the total capacity for the namespace is less than the total capacity of the corresponding physical logic block.
Optionally, the erasing unit includes：
Second extracts subelement, is carried for obtaining the low-level formatting order, and from the low-level formatting order
Take the namespace information of carrying；
Subelement is wiped, for according to all on the namespace information erasings correspondence physical logic block
Data.
The method of a kind of solid state hard disc low-level formatting provided herein, by obtaining in solid state hard disc
Namespace quantity, and recognize and obtain the corresponding amount of capacity of each described namespace；For the namespace roots
According to its corresponding amount of capacity distribution physics logical block；Wherein, the quantity of the physical logic block and the amount of capacity are into just
The relation of ratio；The corresponding physical logic block of write request write-in that main frame is issued；According to the low-level formatting order received,
Wipe all data on the physical logic block.
Obviously, technical scheme provided herein, by being specific to for multiple namespace distribution in solid state hard disc
The physical logic block of the namespace so that when being stored by namespace, only can be stored in the exclusive things of the namespace
Manage among logical block, accordingly, when carrying out low-level formatting, also just can directly wipe the exclusive physics of the namespace
Logical block.Independence when the method increase data storage, the flow and step for simplifying low-level formatting, are improved rudimentary
The efficiency of formatting.The application additionally provides a kind of system of solid state hard disc low-level formatting simultaneously, with above-mentioned beneficial effect,
It will not be repeated here.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of application, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
A kind of flow chart of the method for solid state hard disc low-level formatting that Fig. 1 is provided by the embodiment of the present application；
The flow chart of the method for another solid state hard disc low-level formatting that Fig. 2 is provided by the embodiment of the present application；
The flow chart of the method for another solid state hard disc low-level formatting that Fig. 3 is provided by the embodiment of the present application；
A kind of structured flowchart of the system for solid state hard disc low-level formatting that Fig. 4 is provided by the embodiment of the present application.
Embodiment
The core of the application is to provide a kind of method and system of solid state hard disc low-level formatting, by solid state hard disc
Multiple namespace, distribution is specific to the physical logic block of the namespace, independence, letter when improving data storage
Change the flow and step of low-level formatting, improve the efficiency of low-level formatting.
To make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art
The all other embodiment obtained under the premise of creative work is not made, belongs to the scope of the application protection.
Below in conjunction with Fig. 1, a kind of stream of the method for solid state hard disc low-level formatting that Fig. 1 is provided by the embodiment of the present application
Cheng Tu.
It specifically includes following steps：
S101：The quantity of namespace in solid state hard disc is obtained, and identification obtains the corresponding appearances of each namespace
Measure size；
This step, which is intended to obtain in solid state hard disc, has created the quantity of successful NameSpace or exclusive subregion, and extracts
Obtain the corresponding amount of capacity data of each exclusive subregion.
For example, one possesses the solid state hard disc of 100G memory spaces, and is divided into 3 exclusive subregions, it possesses respectively
30G, 30G, 40G amount of capacity, the purpose of this step are exactly to get these data.To be combined in follow-up other steps
The amount of capacity that each exclusive subregion possesses to distribute corresponding physical logic block for it.
Certainly these desired data modes how to be got varied, these exclusive point was created at that time for example, accessing
Establishment information or configuration file that area is stayed；It can also directly read the parameter information of exclusive subregion to obtain with higher authority
The data that must be wanted etc. method, herein and is not specifically limited, and should regard the model of specific solid state hard disc, manufacturer, firmware
Version number and use make the selection for best suiting user's number one.
S102：For namespace physics logical block is distributed according to its corresponding amount of capacity；Wherein, physical logic block
Quantity is proportional with amount of capacity；
On the basis of S101, this step is intended to according to the amount of capacity of each exclusive subregion obtained come for its point
With exclusive physical logic block, because the size of each physical logic block existing manufacturer at the beginning of production is fixed,
It is readily apparent that the quantity of physical logic block and the amount of capacity of exclusive subregion are proportional.
Mention here, it is necessary to which the illustratively storage of solid state hard disc and erasing mechanism, different from standard machinery hard disk
That the minimum unit that solid state hard disc is used for data storage is page (physical logic page), usual size in 4KB or 8KB, and by
The block (physical logic block) that 128 or 256 physical logics are also constituted, data, in write-in, are according to thing one by one
Reason logical page (LPAGE) is that unit is write, and is then to be wiped according to a physical logic block for unit when wiping, that is to say, that
It is not identical with writing mode to carry out 1:1 erasing, but the physical logic that disposable erasing is made up of multiple physical logics page
Block, so can just exist described in background technology, even if having carried out subregion for solid state hard disc, can also have the data of different subregions
It is stored in the phenomenon of same physical logic block.
Once there is such a phenomenon, simple, reckless can not directly it wipe certainly, it is more likely that lose precious
Data file, so be accomplished by use more complicated recognizer, identify on this physical logic block physical logic page
Which different exclusive subregion is the data of upper storage be all respectively, after result is identified, then by the number of different exclusive subregions
According to being transferred on different physical logic blocks, it could be wiped.So substantial amounts of calculating and disposal ability will be expended
To do these work, the design original intention that solid state hard disc quickly reads and write is reduced.
The purpose of this step is exactly to distribute its exclusive physical logic block to have created the different exclusive subregions of completion, with
Make subsequently to be stored in the data file of the exclusive subregion and be stored directly in exclusive physical logic block, it is to avoid occur mentioned above
Problems.
S103：The write request that main frame is issued writes corresponding physical logic block；
On the basis of S102, this step is intended to the dedicated physical logic for the exclusive subregion of write request write-in for issuing main frame
Among block.To realize the purpose of this step, there can be many specific implementations, herein and be not specifically limited, tool should be regarded
Model, manufacturer, firmware version number and the use of body solid state hard disc make the choosing for best suiting user's number one
Select, while can be described in detail in follow-up other embodiments.
S104：According to the low-level formatting order received, all data on physics logical block are wiped.
On the basis of S103, this step is intended to basis and receives the low-level formatting life to exclusive subregion that main frame is issued
Order, directly wipes all data on physical logic block exclusive under the exclusive subregion.To realize the purpose of this step, it can adopt
With many specific implementations, herein and it is not specifically limited, the model of specific solid state hard disc, manufacturer, firmware should be regarded
Version number and use make the selection for best suiting user's number one, while can enter in follow-up other embodiments
Row is discussed in detail
A kind of method of the solid state hard disc low-level formatting provided based on above-mentioned technical proposal, the embodiment of the present application, is passed through
For multiple namespace in solid state hard disc, distribution is specific to the physical logic block of the namespace, accordingly, under
When the low-level formatting order of hair carries out low-level formatting to the namespace, the namespace can be directly wiped exclusive
Physical logic block, independence when improving data storage, the flow and step for simplifying low-level formatting, improves rudimentary lattice
The efficiency of formula.
Below in conjunction with Fig. 2, the method for another solid state hard disc low-level formatting that Fig. 2 is provided by the embodiment of the present application
Flow chart.
The present embodiment is to be directed in a upper embodiment in S103 how the write request for issuing main frame writes corresponding physics
The specific restriction that logical block is made, other steps are substantially the same with a upper embodiment, and it is real that same section can be found in one
A relevant portion is applied, be will not be repeated here.
It specifically includes following steps：
S201：The write request that Receiving Host is issued, and extract from write request the namespace information of carrying；
This step is intended to from the write request received extract the operation of the exclusive partition information of carrying.Wanting being capable of root
The purpose for finding exclusive subregion is realized according to the write request, the write request will at least include the information of the exclusive subregion of purpose, can also
Comprising other information, for example, partition name information, number information, partitioned storage form, whether encrypting etc. extra letter
Breath, herein and is not specifically limited, should be according to the model of specific solid state hard disc, manufacturer, firmware version number and using using
Make the selection of most suitable user in way.As long as the exclusive partition information of purpose of the write request can be extracted from write request i.e.
Can.
S202：Write request is write by corresponding physical logic block according to namespace information.
On the basis of S201, according to the information of the exclusive subregion extracted and for its distribution dedicated physical logic
Block, the data file write required for the write request is write among these exclusive physical logic blocks.Because under normal circumstances
The dedicated physical logic number of blocks distributed for exclusive subregion is a lot, then the data file write will be needed to write physical logic block
Order there is multiple choices, certain law in itself that can be possessed according to these physical logic blocks can target-seeking parameter be based on
Certain write-in priority principle is write；Some distinctive effects can also be reached according to some other modes, for example
AES etc..Herein and be not specifically limited, should according to the model of specific solid state hard disc, manufacturer, firmware version number with
And use makes the selection of most suitable user.
Below in conjunction with Fig. 3, the big file storage of another block chain and the side of verification that Fig. 3 is provided by the embodiment of the present application
The flow chart of method.
The present embodiment is for implementing specifically how a made limit is verified in middleware layer in a S102
Fixed, other steps are substantially the same with other embodiments, and same section can be found in relevant portion in other embodiments, are no longer gone to live in the household of one's in-laws on getting married herein
State.
It specifically includes following steps：
S301：Low-level formatting order is obtained, and extracts from low-level formatting order the namespace information of carrying；
This step is substantially the same with S201, and different simply orders from the low-level formatting for carrying purposeful exclusive partition information
In order, the exclusive partition information of purpose is extracted out, other parts can be found in S201 relevant portions, will not be repeated here.
S302：According to all data in namespace information erasings correspondence physics logical blocks.
On the basis of S301, the information of the exclusive subregion of purpose has been obtained, it is only necessary to perform to the exclusive subregion of the purpose
Under dedicated physical logical block on all data directly wiped because these physical logic blocks are all the exclusive subregions
Proprietary, storage is also all that this should belong to the data of this exclusive subregion, so in the absence of of the prior art many
Questions and doubts.
A kind of method of the solid state hard disc low-level formatting provided based on above-mentioned technical proposal, the embodiment of the present application, is passed through
It is that its distribution is specific to this according to different namespace amount of capacity difference for multiple namespace in solid state hard disc
The physical logic block of namespace varying number, next only need to extract the exclusive subregion of purpose from the write request issued
Information, and write data are write among exclusive physical logic block, and according to the low-level formatting order pair issued
When the namespace carries out low-level formatting, the exclusive physical logic blocks of the namespace can be directly wiped, number is improved
According to independence during storage, the flow and step of low-level formatting are simplified, the efficiency of low-level formatting is improved.
Because situation is complicated, it is impossible to enumerates and is illustrated, those skilled in the art should be able to recognize more the application
The basic skills principle combination actual conditions of offer may have many examples, in the case where not paying enough creative works,
Should be in the protection domain of the application.
Fig. 4 is referred to below, and what a kind of big file of block chain that Fig. 4 is provided by the embodiment of the present application was stored and verified is
The structured flowchart of system.
The system can include：
Quantity capacity acquisition unit 100, the quantity for obtaining namespace in solid state hard disc, and identification obtains each
The corresponding amount of capacity of individual namespace；
Physical logic block designating unit 200, for distributing physical logic according to its corresponding amount of capacity for namespace
Block；Wherein, the quantity of physical logic block and amount of capacity are proportional；
Writing unit 300, the write request for main frame to be issued writes corresponding physical logic block；
Unit 400 is wiped, for according to the low-level formatting order received, wiping all numbers on physics logical block
According to.
Wherein, the writing unit 300 includes：
First extracts subelement, the write request issued for Receiving Host, and extracts what is carried from write request
Namespace information；
Subelement is write, for write request to be write into corresponding physical logic block according to namespace information.
Further, the system also includes：
Limiting unit, the total capacity for namespace is less than the total capacity of corresponding physical logic block.With further
, accounted for always it is also possible that each namespace accounts for the ratio of total memory space with being specific to each namespace physical logic block
The ratio of physical logic block is consistent.
Wherein, the erasing unit 400 includes：
Second extracts subelement, for obtaining low-level formatting order, and extracts what is carried from low-level formatting order
Namespace information；
Subelement is wiped, for according to all data in namespace information erasings correspondence physics logical blocks.
The embodiment of each in specification is described by the way of progressive, and what each embodiment was stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think to exceed scope of the present application.
Specific case used herein is set forth to the principle and embodiment of the application, and above example is said
It is bright to be only intended to help and understand the present processes and its core concept.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the application principle is not departed from, some improvement and modification can also be carried out to the application, these improvement
Also fallen into modification in the application scope of the claims.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including key element, method, article or equipment.
Claims (8)
1. a kind of method of solid state hard disc low-level formatting, it is characterised in that including：
The quantity of namespace in solid state hard disc is obtained, and recognizes that to obtain the corresponding capacity of each described namespace big
It is small；
For the namespace physics logical block is distributed according to its corresponding amount of capacity；Wherein, the number of the physical logic block
Amount is proportional with the amount of capacity；
The corresponding physical logic block of write request write-in that main frame is issued；
According to the low-level formatting order received, all data on the physical logic block are wiped.
2. according to the method described in claim 1, it is characterised in that the write request for issuing main frame writes the corresponding physics
Logical block, including：
The write request that Receiving Host is issued, and extract from the write request namespace information of carrying；
The write request is write by the corresponding physical logic block according to the namespace information.
3. method according to claim 2, it is characterised in that also include：
The total capacity of the namespace is less than the total capacity of the corresponding physical logic block.
4. the method according to any one of claims 1 to 3, it is characterised in that according to the low-level formatting order received,
All data on the physical logic block are wiped, including：
The low-level formatting order is obtained, and extracts from the low-level formatting order namespace letters of carrying
Breath；
According to all data on the namespace information erasings correspondence physical logic block.
5. a kind of system of solid state hard disc low-level formatting, it is characterised in that including：
Quantity capacity acquisition unit, the quantity for obtaining namespace in solid state hard disc, and identification are obtained described in each
The corresponding amount of capacity of namespace；
Physical logic block designating unit, for distributing physics logical block according to its corresponding amount of capacity for the namespace；
Wherein, the quantity and the amount of capacity of the physical logic block are proportional；
Writing unit, the write request for main frame to be issued writes the corresponding physical logic block；
Unit is wiped, for according to the low-level formatting order received, wiping all data on the physical logic block.
6. according to the system described in claim 5, it is characterised in that said write unit includes：
First extracts subelement, the write request issued for Receiving Host, and extracts what is carried from the write request
Namespace information；
Subelement is write, for the write request to be write into the corresponding physical logic block according to the namespace information.
7. system according to claim 6, it is characterised in that also include：
Limiting unit, the total capacity for the namespace is less than the total capacity of the corresponding physical logic block.
8. the system according to any one of claim 5 to 7, it is characterised in that the erasing unit includes：
Second extracts subelement, is taken for obtaining the low-level formatting order, and being extracted from the low-level formatting order
The namespace information of band；
Subelement is wiped, for according to all data on the namespace information erasings correspondence physical logic block.
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| CN111552436A (en) * | 2018-10-25 | 2020-08-18 | 华为技术有限公司 | Data recovery method, system and device in storage system |
| CN111552436B (en) * | 2018-10-25 | 2022-02-25 | 华为技术有限公司 | Data recovery method, system and device in storage system |
| CN115686372A (en) * | 2022-11-07 | 2023-02-03 | 武汉麓谷科技有限公司 | ZNS solid state disk ZRWA function-based data management method |
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Application publication date: 20171103 |