CN106919347A - The creation method and device of the catalogue of distributed block storage system - Google Patents
The creation method and device of the catalogue of distributed block storage system Download PDFInfo
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- CN106919347A CN106919347A CN201710114864.XA CN201710114864A CN106919347A CN 106919347 A CN106919347 A CN 106919347A CN 201710114864 A CN201710114864 A CN 201710114864A CN 106919347 A CN106919347 A CN 106919347A
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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
- G06F3/0628—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
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
A kind of creation method and device of the catalogue of distributed block storage system are the embodiment of the invention provides, expansible data structure can be realized.A kind of creation method of the catalogue of the distributed block storage system, including:Step 1, with a chuck data structures, creates root;Step 2, is the next stage of the root, the address information of at least one first order subdirectory of distribution or volume;Step 3, in a chuck data structures of the root, adds the address information of at least one first order subdirectory or volume so that a chuck data structures include:The address information of at least one first order subdirectory or volume;Step 4, according at least one first order subdirectory or the address information of volume, with the 2nd chuck data structures, in the next stage of the root, creates at least one first order subdirectory or volume.The present invention can realize expansible data structure.
Description
Technical field
The present invention relates to field of data structures, more particularly to a kind of creation method of the catalogue of distributed block storage system and
Device.
Background technology
The design data of distributed memory system is a technology and engineering problem for being rich in challenge.Various storage systems
(including block storage, volume storage and object storage), because the difference of interface and function, the hypothesis and principle of design work are correspondingly
It is very different.
The content of the invention
The embodiment provides a kind of creation method and device of the catalogue of distributed block storage system, Neng Goushi
Existing expansible data structure, conveniently carries out the extension of data.
To achieve these goals, this invention takes following technical scheme.
A kind of creation method of the catalogue of distributed block storage system, including:
Step 1, with a chuck data structures, creates root;
Step 2, is the next stage of the root, the address information of at least one first order subdirectory of distribution or volume;
Step 3, in a chuck data structures of the root, adds at least one first order subdirectory
Or the address information of volume so that a chuck data structures include:The ground of at least one first order subdirectory or volume
Location information;
Step 4, according at least one first order subdirectory or the address information of volume, with the 2nd chuck data structures,
In the next stage of the root, at least one first order subdirectory or volume are created.
Methods described also includes:
Step 5, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Step 6, in the 2nd chuck data structures of the volume, adds the address letter of at least one RAW data
Breath so that the 2nd chuck data structures include:The address information of at least one RAW data;
Step 7, the address information of RAW data according to described at least one, in the next stage of the volume, is created at least
One RAW data.
While performing the step 3, methods described also includes:
Step 31, in a chuck data structures of the root, adds the basic of a chuck data
Attribute information so that a chuck data structures also include:The base attribute information of the first chuck data;
The base attribute information of the first chuck data structures includes:The ID of the first chuck data, a chuck numbers
According to creation time, the data type that represents the chuck data be the mark of catalogue, a chuck data it is nearest
The operation operating rights of the catalogue where renewal time, the copy total quantity of a chuck data, a chuck data once
One or more any combination in limit.
While the step 6 is performed, methods described also includes:
Step 61, in the 2nd chuck data structures of the volume, adds the base attribute of the 2nd chuck data
Information so that the 2nd chuck data structures also include:The base attribute information of the 2nd chuck data;
The base attribute information of the 2nd chuck data structures includes:The ID of the 2nd chuck data, the 2nd chuck numbers
According to creation time, the data type that represents the 2nd chuck data be the mark of subdirectory or volume, the 2nd chuck data
The operation operation of the volume where the last renewal time, the copy total quantity of the 2nd chuck data, the 2nd chuck data
One or more any combination in authority.
When the data structure that the 2nd chuck data structures are volume, while the step 6 is performed, the side
Method also includes:
Step 62, in the 2nd chuck data structures of the volume, adds the extended attribute of the 2nd chuck data
One or more any combination in information, the snapshot attribute information of the 2nd chuck data so that described second
Chuck data structures also include:The extended attribute information of the 2nd chuck data, the snapshot category of the 2nd chuck data
One or more any combination in property information.
The extended attribute information of the 2nd chuck data structures includes:The alias of the volume where the 2nd chuck data,
Whether the volume where enciphered information, the 2nd chuck data allows to be accessed for user name and close for volume where 2nd chuck data
One or more any combination in the copy amount of the volume where code, the 2nd chuck data.
The snapshot attribute information of the 2nd chuck data includes:Where snapshot ID and the 2nd chunk data
Mapping relations between volume and the snapshot ID.
The present invention also provides a kind of creating device of the catalogue of distributed block storage system, including:
First creating unit, with a chuck data structures, creates root;
First allocation unit, is the next stage of the root, the address of at least one first order subdirectory of distribution or volume
Information;
First adding device, in a chuck data structures of the root, adds at least one first order
The address information of subdirectory or volume so that a chuck data structures include:At least one first order subdirectory or
The address information of volume;
Second creating unit, according at least one first order subdirectory or the address information of volume, with the 2nd chuck numbers
According to structure, in the next stage of the root, at least one first order subdirectory or volume are created.
Described device also includes:
Second allocation unit, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Second adding device, in the 2nd chuck data structures of the volume, adds at least one RAW data
Address information so that the 2nd chuck data structures include:The address information of at least one RAW data;
3rd creating unit, the address information of RAW data according to described at least one, in the next stage of the volume,
Create at least one RAW data.
Described device, also includes:
3rd adding device, according to the base attribute information of a chuck data, the first of the root
In chuck data structures, the base attribute information of a chuck data is added so that a chuck data structures
Also include:The base attribute information of the first chuck data;
The base attribute information of the first chuck data structures includes:The ID of the first chuck data, a chuck numbers
According to creation time, the data type that represents the chuck data be the mark of catalogue, a chuck data it is nearest
The operation operating rights of the catalogue where renewal time, the copy total quantity of a chuck data, a chuck data once
One or more any combination in limit.
The technical scheme provided by embodiments of the invention described above can be seen that in above-described embodiment, and root is with first
The form of chuck data structures, a chuck data structures include:The address information of at least one first order subdirectory or volume,
Therefore, at least one-level first order subdirectory can be extended below root, it is also possible to extend volume at least one, such that it is able to realize
Data it is expansible, increased the dilatancy of system.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of processing stream of the creation method of the catalogue of distributed block storage system that the embodiment of the present invention one is provided
Cheng Tu;
Fig. 2 is a kind of processing stream of the creation method of the catalogue of distributed block storage system that the embodiment of the present invention two is provided
Cheng Tu;
Fig. 3 is a kind of processing stream of the creation method of the catalogue of distributed block storage system that the embodiment of the present invention two is provided
Cheng Tu;
Fig. 4 is a kind of schematic diagram of the catalogue of distributed block storage system that the embodiment of the present invention two is provided;
Fig. 5 is the schematic diagram of a chuck data structures in the embodiment of the present invention;
Fig. 6 is the schematic diagram of the 2nd chuck data structures of embodiment of the present invention subdirectories;
Fig. 7 is the schematic diagram of the 2nd chuck data structures of volume in the embodiment of the present invention;
Fig. 8 is the schematic diagram of chuck data structures unified in the embodiment of the present invention;
Fig. 9 is a kind of connection flow of the creating device of the catalogue of distributed block storage system provided in an embodiment of the present invention
Figure.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the implementation method is shown in the drawings, wherein ad initio
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The implementation method for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in figure 1, be a kind of creation method of the catalogue of distributed block storage system of the present invention, including:
Step 11, with a chuck data structures, creates root;
Step 12, is the next stage of the root, the address information of at least one first order subdirectory of distribution or volume;
Step 13, in a chuck data structures of the root, adds at least one first order subdirectory
Or the address information of volume so that a chuck data structures include:The ground of at least one first order subdirectory or volume
Location information;Fig. 5 is the schematic diagram of a chuck data structures in the embodiment of the present invention.
Step 14, according at least one first order subdirectory or the address information of volume, with the 2nd chuck data knots
Structure, in the next stage of the root, creates at least one first order subdirectory or volume.
In above-described embodiment, in the form of a chuck data structures, a chuck data structures include root:Extremely
The address information of a few first order subdirectory or volume, therefore, at least one-level first order subdirectory can be extended below root,
Volume at least one can also be extended, such that it is able to realize the expansible of data, the dilatancy of system is increased.
Optionally, methods described also includes:
Step 15, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Step 16, in the 2nd chuck data structures of the volume, adds the address letter of at least one RAW data
Breath so that the 2nd chuck data structures include:The address information of at least one RAW data;Fig. 7 is real for the present invention
Apply the schematic diagram of the 2nd chuck data structures rolled up in example.
Step 17, the address information of RAW data according to described at least one, in the next stage of the volume, is created extremely
Few RAW data.
In above-described embodiment, in the form of a chuck data structures, a chuck data structures include root:Extremely
The address information of a few first order subdirectory or volume, therefore, at least one-level first order subdirectory can be extended below root,
Volume at least one can also be extended, such that it is able to realize the expansible of data, the dilatancy of system is increased.
As shown in Fig. 2 optional, methods described also includes:
Step 18, is the next stage of the first order subdirectory, the address of at least one second level subdirectory of distribution or volume
Information;
Step 19, in the 2nd chuck data structures of the first order subdirectory, adds at least one second level
The address information of subdirectory or volume so that the 2nd chuck data structures include:At least one second level subdirectory or
The address information of person's volume;Fig. 6 is the schematic diagram of the 2nd chuck data structures of embodiment of the present invention subdirectories.
Step 110, the address information of second level subdirectory or volume according to described at least one, in first order
The next stage of catalogue, creates at least one second level subdirectory or volume.Second level subdirectory can also use the 2nd chuck data
Structure.2nd chuck data structures of second level subdirectory compare class with the 2nd chuck data structures of first order subdirectory
Seemingly.
Optionally, while the step 19 is performed, methods described also includes:
Step 191, the base attribute information of the 2nd chuck data according to the first order subdirectory, described first
In 2nd chuck data structures of level subdirectory, the base attribute information of the 2nd chuck data is added so that described the
2nd chuck data structures of first level subdirectory also include:The base attribute information of the 2nd chuck data;
The base attribute information of the 2nd chuck data structures of the first order subdirectory includes:2nd chuck data
ID, the creation time of the 2nd chuck data, the data type of the 2nd chuck data of expression are mark, the 2nd chuck of catalogue
Subdirectory where the last renewal time, the copy total quantity of the 2nd chuck data, the 2nd chuck data of data
Operation operating right in one or more any combination.
In above-described embodiment, in above-described embodiment, extension has first order subdirectory and (or) volume, the first order below root
Extension has second level subdirectory and (or) volume under subdirectory;Root in the form of a chuck data structures, a chuck
Data structure includes:The address information of at least one first order subdirectory or volume;First order subdirectory is with the 2nd chuck data knots
The form of structure, the 2nd chuck data structures include:The address information of at least one second level subdirectory or volume, such that it is able to reality
Now data is expansible, increased the dilatancy of system.
As shown in Fig. 3 institutes, optionally, while performing the step 13, methods described also includes:
Step 131, according to the base attribute information of a chuck data, in a chuck numbers of the root
According in structure, the base attribute information of a chuck data is added so that a chuck data structures also include:
The base attribute information of the first chuck data;
The base attribute information of the first chuck data structures includes:The ID of the first chuck data, a chuck numbers
According to creation time, the data type that represents the chuck data be the mark of catalogue, a chuck data it is nearest
The operation operating rights of the catalogue where renewal time, the copy total quantity of a chuck data, a chuck data once
One or more any combination in limit.
Optionally, while the step 16 is performed, methods described also includes:
Step 161, in the 2nd chuck data structures of the volume, adds the base attribute of the 2nd chuck data
Information so that the 2nd chuck data structures also include:The base attribute information of the 2nd chuck data;
The base attribute information of the 2nd chuck data structures includes:The ID of the 2nd chuck data, the 2nd chuck numbers
According to creation time, the data type that represents the 2nd chuck data be the mark of subdirectory or volume, the 2nd chuck data
The last operation operating rights for updating volume where time, the copy total quantity of the 2nd chuck data, the 2nd chuck data
One or more any combination in limit.
Optionally, when the data structure that the 2nd chuck data structures are volume, while the step 6 is performed,
Methods described also includes:
Step 162, in the 2nd chuck data structures of the volume, adds the extended attribute of the 2nd chuck data
One or more any combination in information, the snapshot attribute information of the 2nd chuck data so that described second
Chuck data structures also include:The extended attribute information of the 2nd chuck data, the snapshot category of the 2nd chuck data
One or more any combination in property information.As shown in fig. 7, being the 2nd chuck data rolled up in the embodiment of the present invention
The schematic diagram of structure.
Wherein, the extended attribute information of the 2nd chuck data structures includes:Volume where 2nd chuck data
Whether the volume where enciphered information, the 2nd chuck data allows to be accessed for user volume where alias, the 2nd chuck data
One or more any combination in the copy amount of the volume where name and password, the 2nd chuck data.
Wherein, the snapshot attribute information of the 2nd chuck data includes:Snapshot ID and the 2nd chunk data
Mapping relations between the volume at place and the snapshot ID.
In the embodiment of the present invention, volume is with chuck data modes establishment, first order subdirectory and second level subdirectory
With the 2nd chuck data creations.The base attribute information of chuck data structures includes:Represent the data class of the chuck data
Type is the mark of catalogue or volume.When the chuck data structures that chuck data structures are volume, chuck data structures include:
The extended attribute information of chuck data, the snapshot attribute information of chuck data.
The metadata and data block data of distributed block storage system are generally comprised:Storage pool, volume, snapshot.Fundamental operation
It is related to create, deletes, travel through, reading and writing, all data are preserved using chunk forms, that is to say, that chunk points of metadata
Chunk and data block data chunk.The present invention is managed collectively operation using expansible data structure, and the system of enhancing can
Autgmentability.That is, the present invention is managed collectively metadata chunk and data block data using expansible metadata structure
chunk。
If a size for chunk data structures is designed according to 1M sizes, a position takes in extension item
64bit, then can be 1024*1000/64=16000 with extension bits.
Map area+xmap area+snap map area=16000, so in metadata profile structure, the first order to
Second level extension is expansible 16000.The second level is also 16000 to third level extension maximum in data structure.So data knot
In structure, the first order is exactly 16000*16000 to the quantity that the third level extends, expansible if chunk is not if 1M is bigger
Quantity is just bigger.So big extension support, can meet all design datas in existing design.
Fig. 4 is a kind of schematic diagram of the catalogue of distributed block storage system that the embodiment of the present invention two is provided;Fig. 5 is this hair
The schematic diagram of a chuck data structures in bright embodiment;Fig. 6 is the 2nd chuck data of embodiment of the present invention subdirectories
The schematic diagram of structure;Fig. 7 is the schematic diagram of the 2nd chuck data structures of volume in the embodiment of the present invention;As shown in figure 8, in order to
Uniform data structure, during actual treatment, it would however also be possible to employ whether the information for increasing " switch mark " mark corresponding region is effective.
As shown in figure 9, be a kind of creating device of the catalogue of distributed block storage system of the present invention, including:
First creating unit 31, with a chuck data structures, creates root;
First allocation unit 32, is the next stage of the root, the ground of at least one first order subdirectory of distribution or volume
Location information;
First allocation unit 33, in a chuck data structures of the root, addition described at least one first
The address information of level subdirectory or volume so that a chuck data structures include:At least one first order subdirectory
Or the address information of volume;
Second creating unit 34, according at least one first order subdirectory or the address information of volume, with the 2nd chuck
Data structure, in the next stage of the root, creates at least one first order subdirectory or volume.
Described device also includes:
Second allocation unit 35, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Second adding device 36, in the 2nd chuck data structures of the volume, adds at least one RAW data
Address information so that the 2nd chuck data structures include:The address information of at least one RAW data;
3rd creating unit 37, the address information of RAW data according to described at least one, in the next of the volume
Level, creates at least one RAW data.
Optionally, described device, also includes:
3rd adding device 38, according to the base attribute information of a chuck data, the first of the root
In chuck data structures, the base attribute information of a chuck data is added so that a chuck data structures
Also include:The base attribute information of the first chuck data;
Wherein, the base attribute information of a chuck data structures includes:ID, first of the first chuck data
The creation time of chuck data, the data type of expression the first chuck data are mark, a chuck data of catalogue
It is the last update time, the copy total quantity of a chuck data, a chuck data where catalogue operation
One or more any combination in operating right.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (10)
1. a kind of creation method of the catalogue of distributed block storage system, it is characterised in that including:
Step 1, with a chuck data structures, creates root;
Step 2, is the next stage of the root, the address information of at least one first order subdirectory of distribution or volume;
Step 3, in a chuck data structures of the root, adds at least one first order subdirectory or volume
Address information so that a chuck data structures include:The address letter of at least one first order subdirectory or volume
Breath;
Step 4, according at least one first order subdirectory or the address information of volume, with the 2nd chuck data structures, in institute
The next stage of root is stated, at least one first order subdirectory or volume is created.
2. method according to claim 1, it is characterised in that methods described also includes:
Step 5, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Step 6, in the 2nd chuck data structures of the volume, adds the address information of at least one RAW data, makes
Obtaining the 2nd chuck data structures includes:The address information of at least one RAW data;
Step 7, the address information of RAW data according to described at least one, in the next stage of the volume, creates at least one
RAW data.
3. method according to claim 1, it is characterised in that methods described also includes:
Step 8, is the next stage of the first order subdirectory, the address information of at least one second level subdirectory of distribution or volume;
Step 9, in the 2nd chuck data structures of the first order subdirectory, adds at least one second level specific item
Record or the address information of volume so that the 2nd chuck data structures include:At least one second level subdirectory or volume
Address information;
Step 10, the address information of second level subdirectory or volume according to described at least one, in the first order subdirectory
Next stage, create at least one second level subdirectory or volume.
4. method according to claim 1, it is characterised in that while performing the step 3, methods described also includes:
Step 31, in a chuck data structures of the root, adds the base attribute of a chuck data
Information so that a chuck data structures also include:The base attribute information of the first chuck data;
The base attribute information of the first chuck data structures includes:The ID of the first chuck data, a chuck data
Creation time, the data type of expression the first chuck data are mark, the last time of a chuck data of catalogue
The operation operating right for updating time, the copy total quantity of a chuck data, catalogue where a chuck data in
One or more any combination.
5. method according to claim 2, it is characterised in that while the step 6 is performed, methods described is also wrapped
Include:
Step 61, in the 2nd chuck data structures of the volume, adds the base attribute information of the 2nd chuck data,
So that the 2nd chuck data structures also include:The base attribute information of the 2nd chuck data;
The base attribute information of the 2nd chuck data structures includes:The ID of the 2nd chuck data, the 2nd chuck data
Creation time, the data type for representing the 2nd chuck data are the mark of subdirectory or volume, the 2nd chuck data it is nearest
The operation operating right of the volume where renewal time, the copy total quantity of the 2nd chuck data, the 2nd chuck data once
In one or more any combination.
6. method according to claim 5, it is characterised in that when the data knot that the 2nd chuck data structures are volume
During structure, while the step 6 is performed, methods described also includes:
Step 62, in the 2nd chuck data structures of the volume, the extended attribute information of addition the 2nd chuck data,
One or more any combination in the snapshot attribute information of the 2nd chuck data so that the 2nd chuck numbers
Also include according to structure:The extended attribute information of the 2nd chuck data, the snapshot attribute information of the 2nd chuck data
In one or more any combination.
7. method according to claim 6, it is characterised in that
The extended attribute information of the 2nd chuck data structures includes:Alias, second of the volume where the 2nd chuck data
Volume where chuck data whether the volume where enciphered information, the 2nd chuck data allow to be accessed for username and password,
One or more any combination in the copy amount of the volume where the 2nd chuck data.
8. method according to claim 6, it is characterised in that
The snapshot attribute information of the 2nd chuck data includes:Volume where snapshot ID and the 2nd chunk data with
Mapping relations between the snapshot ID.
9. a kind of creating device of the catalogue of distributed block storage system, it is characterised in that including:
First creating unit, with a chuck data structures, creates root;
First allocation unit, is the next stage of the root, the address information of at least one first order subdirectory of distribution or volume;
First adding device, in a chuck data structures of the root, adds at least one first order specific item
Record or the address information of volume so that a chuck data structures include:At least one first order subdirectory or volume
Address information;
Second creating unit, according at least one first order subdirectory or the address information of volume, with the 2nd chuck data knots
Structure, in the next stage of the root, creates at least one first order subdirectory or volume.
10. device according to claim 9, it is characterised in that described device also includes:
Second allocation unit, is the next stage of the volume, distributes the address information of at least one data block RAW data;
Second adding device, in the 2nd chuck data structures of the volume, adds the address of at least one RAW data
Information so that the 2nd chuck data structures include:The address information of at least one RAW data;
3rd creating unit, the address information of RAW data according to described at least one, in the next stage of the volume, is created
At least one RAW data.
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Cited By (2)
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CN108491549A (en) * | 2018-04-09 | 2018-09-04 | 深圳市茁壮网络股份有限公司 | The creation method and device of file directory in a kind of distributed memory system |
CN113138722A (en) * | 2021-04-30 | 2021-07-20 | 北京百度网讯科技有限公司 | Replicated snapshot method, system, and medium for distributed block storage system |
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US20040153479A1 (en) * | 2002-11-14 | 2004-08-05 | Mikesell Paul A. | Systems and methods for restriping files in a distributed file system |
CN1904889A (en) * | 2006-08-11 | 2007-01-31 | 中国科学院计算技术研究所 | Method for storing metadata of logic document system by adhesion property |
CN101446984A (en) * | 2009-01-09 | 2009-06-03 | 成都市华为赛门铁克科技有限公司 | Method and device for storing files and method and device for deleting files |
CN103198153A (en) * | 2013-04-25 | 2013-07-10 | 北京邮电大学 | Metadata clustering management method and module applied to distributed file system |
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CN113138722A (en) * | 2021-04-30 | 2021-07-20 | 北京百度网讯科技有限公司 | Replicated snapshot method, system, and medium for distributed block storage system |
CN113138722B (en) * | 2021-04-30 | 2024-01-12 | 北京百度网讯科技有限公司 | Replication snapshot method, system and medium for distributed block storage system |
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