CN110413565A - A kind of method, equipment and the medium of more storages equipment synchronisation snapshot - Google Patents
A kind of method, equipment and the medium of more storages equipment synchronisation snapshot Download PDFInfo
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- CN110413565A CN110413565A CN201910579983.1A CN201910579983A CN110413565A CN 110413565 A CN110413565 A CN 110413565A CN 201910579983 A CN201910579983 A CN 201910579983A CN 110413565 A CN110413565 A CN 110413565A
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- 238000003860 storage Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000014759 maintenance of location Effects 0.000 title claims abstract description 8
- 230000004044 response Effects 0.000 claims abstract description 5
- 238000004590 computer program Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 239000000306 component Substances 0.000 description 21
- 230000006870 function Effects 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/128—Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2365—Ensuring data consistency and integrity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
-
- 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
-
- 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
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
-
- 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]
Abstract
The present invention provides method, equipment and the media of a kind of more storages equipment synchronisation snapshot, method includes the following steps: executing the instruction of snapshot in response to receiving, the Snapshot time axis in the preset time of each storage equipment of same application is split as timestamp；Reduced time stamp, is defined as baseline snapshot node for the timing node in timestamp the latest；Snapshot is executed to each storage equipment based on baseline snapshot node.By using method of the invention, it is possible to keep work more simplified, time availability is higher, and error rate is smaller, reduces total operating cost, improves reliability, the availability of whole system.
Description
Technical field
This field is related to computer field, and relate more specifically to a kind of more storages equipment synchronisation snapshot method,
Equipment and medium.
Background technique
With the development of the new techniques such as cloud computing, big data, the generation of mass data, storage equipment increases year by year, meeting
Occur multiple devices simultaneously be supplied to one application come using the case where.In order to guarantee data security, we usually use snapshot
To solve the problems, such as that data are restored.And multiple devices be supplied to one using when, single device does snapshot respectively and can not
Guarantee the consistency of data.Whether data can fully synchronized be a urgent problems to be solved.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of method of more storages equipment synchronisation snapshot, set
Standby and medium may be implemented more storage equipment using this method while carry out snapshot, and can be directed to different LUN (logics
Unit number) to classify, the different LUN group snapshots carried out between striding equipment synchronize.And it can be timed snapshot, according to
The needs of application carry out snapshot in sometime point or certain time period, improve the safety of data.Such setting can both be protected
The safety of data is demonstrate,proved, and may insure the consistency of data, while the management of more equipment can also be carried out, is divided by application
Class management, more convenient and efficient.By such method, the utilization rate of more equipment can be improved, improve the availability of system, answer extensively
With can substantially lower total maintenance cost.
Based on above-mentioned purpose, the one aspect of the embodiment of the present invention provides a kind of more and stores equipment synchronisation snapshot
Method, comprising the following steps:
The instruction that snapshot is executed in response to receiving, by the snapshot in the preset time of each storage equipment of same application
Time shaft is split as timestamp；
Reduced time stamp, is defined as baseline snapshot node for the timing node in timestamp the latest；
Snapshot is executed to each storage equipment based on baseline snapshot node.
According to one embodiment of present invention, by the Snapshot time in the preset time of each storage equipment of same application
It includes: to split Snapshot time axis of each logic unit of each storage equipment in one section of preset time that axis, which is split as timestamp,
For timestamp.
According to one embodiment of present invention, preset time includes 20 seconds to 60 seconds.
According to one embodiment of present invention, reduced time stamp includes: to carry out the timestamp that the end HOST issues data pair
Than.
According to one embodiment of present invention, the reduced time stabs further include: is ranked up timestamp is chronologically-based.
According to one embodiment of present invention, baseline snapshot node is the timestamp of the last in sequence.
According to one embodiment of present invention, executing snapshot to each storage equipment based on baseline snapshot node includes:
Determine metadata pointer gauge, by the data of each storage subsequent write-in of equipment, according to snapshot Copy on write mechanism,
Metadata is written in snapped volume, and change data are written in reel.
According to one embodiment of present invention, executing snapshot to each storage equipment based on baseline snapshot node includes: pair
Each logic unit of each storage equipment executes snapshot.
The other side of the embodiment of the present invention additionally provides a kind of computer equipment, comprising:
At least one processor；And
Memory, memory are stored with the computer program that can be run on a processor, and processor executes when executing program
The above-mentioned method of any one.
The other side of the embodiment of the present invention additionally provides a kind of computer readable storage medium, computer-readable
Storage medium is stored with computer program, and any one above-mentioned method is executed when computer program is executed by processor.
The present invention has following advantageous effects: the side of more storages equipment synchronisation snapshot provided in an embodiment of the present invention
Method, by executing the instruction of snapshot in response to receiving, by the snapshot in the preset time of each storage equipment of same application
Time shaft is split as timestamp；Reduced time stamp, is defined as baseline snapshot node for the timing node in timestamp the latest；It is based on
Baseline snapshot node executes the technical solution of snapshot to each storage equipment, can be realized more storage equipment while carrying out fast
According to, and can classify for different LUN, the different LUN group snapshots carried out between striding equipment synchronize.And it can be into
Row timing snapshot carries out snapshot in sometime point or certain time period, improves the safety of data according to the needs of application.
It is such that the safety that can have not only guaranteed data is set, but also may insure the consistency of data, while more equipment can also be carried out
Management carries out Classification Management, more convenient and efficient by application.By such method, the utilization rate of more equipment can be improved, improve system
The availability of system is widely applied, can substantially lower total maintenance cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is the schematic flow chart that the method for equipment synchronisation snapshot is stored according to more of one embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
Based on above-mentioned purpose, the first aspect of the embodiment of the present invention proposes more storage equipment of one kind and synchronizes fastly
According to method one embodiment.Shown in fig. 1 is the schematic flow chart of this method.
As shown in fig. 1, this method may comprise steps of:
S1 executes the instruction of snapshot in response to receiving, will be fast in the preset time of each storage equipment of same application
Timestamp is split as according to time shaft；
The S2 reduced time stabs, and the timing node in timestamp the latest is defined as baseline snapshot node；
S3 is based on baseline snapshot node and executes snapshot to each storage equipment.
By above technical scheme, it can be realized more storage equipment while carrying out snapshot, and different LUN can be directed to
Classify, the different LUN group snapshots carried out between striding equipment synchronize.And it can be timed snapshot, according to application
It needs, carries out snapshot in sometime point or certain time period, improve the safety of data.Such setting can both guarantee data
Safety, and may insure the consistency of data, while the management of more equipment can also be carried out, carry out classification pipe by application
Reason, more convenient and efficient.By such method, the utilization rate of more equipment can be improved, improve the availability of system, be widely applied,
Total maintenance cost can substantially be lowered.
In a preferred embodiment of the invention, by the snapshot in the preset time of each storage equipment of same application
It includes: the Snapshot time axis by each logic unit of each storage equipment in one section of preset time that time shaft, which is split as timestamp,
It is split as timestamp.
In a preferred embodiment of the invention, preset time includes 20 seconds to 60 seconds.
Using IO is write to host layer, host HOST is written to IO in storage equipment again, and each IO band is not necessarily consistent,
According to the difference of the application from several bit to several Kb, tens Kb, for example database application is largely 8Kb data block, these IO exist
When host issues storage, Host Administration component can all record a time point, or be timestamp, when triggering snapshot, storage
When receiving snapshot instruction, the IO timestamp of each host LUN is obtained, while recording the timestamp of IO at this time.
In a preferred embodiment of the invention, reduced time stamp include: by the end HOST issue the timestamps of data into
Row comparison.In a preferred embodiment of the invention, reduced time stamp includes: to arrange timestamp is chronologically-based
Sequence.In a preferred embodiment of the invention, baseline snapshot node is the last timestamp in sequence.
After storage receives the timestamp of each LUN, for example, the time of LUN1 at this time is 1 point of 1 second 01 minute 0.1 milli
Second, the time of LUN2 at this time is 0.2 millisecond, and the time of LUN3 at this time is 0.3 millisecond, at this time mean that LUN1 writes most slow,
The latest, then selecting the timestamp of LUN3 for benchmark snapshot node, LUN1, LUN2 will continue to write-in number to the timing node of LUN3
According to storage continues to record its timestamp, and when receiving 0.3 millisecond of this timestamp, storage, which synchronizes, does snapshot, that is, completes one
Metadata pointer gauge.Meanwhile if LUN2 does not have data write-in at 0.3 millisecond, when the time of record is greater than 0.3 millisecond,
Snapshot is carried out for the timing node of a upper IO, completes metadata pointer gauge.
In a preferred embodiment of the invention, snapshot packet is executed to each storage equipment based on baseline snapshot node
It includes: determining metadata pointer gauge, the data of each storage subsequent write-in of equipment, according to snapshot Copy on write mechanism, metadata
It is written in snapped volume, change data are written in reel.
In a preferred embodiment of the invention, snapshot packet is executed to each storage equipment based on baseline snapshot node
It includes: snapshot is executed to each logic unit of each storage equipment.
It should be noted that those of ordinary skill in the art will appreciate that realizing the whole in above-described embodiment method or portion
Split flow can instruct related hardware to complete by computer program, and above-mentioned program can be stored in computer-readable
In storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, storage medium can
For magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..It is identical to can achieve corresponding aforementioned any means embodiment for the embodiment of above-mentioned computer program
Or similar effect.
In addition, disclosed method is also implemented as the computer program executed by CPU according to embodiments of the present invention, it should
Computer program may be stored in a computer readable storage medium.When the computer program is executed by CPU, the present invention is executed
The above-mentioned function of being limited in method disclosed in embodiment.
Based on above-mentioned purpose, the second aspect of the embodiment of the present invention proposes a kind of computer equipment, comprising:
At least one processor；And
Memory, memory are stored with the computer program that can be run on a processor, and processor executes when executing program
The above-mentioned method of any one.
Based on above-mentioned purpose, the third aspect of the embodiment of the present invention proposes a kind of computer readable storage medium,
Computer-readable recording medium storage has computer program, and it is above-mentioned that any one is executed when computer program is executed by processor
Method.
Based on above-mentioned purpose, the third aspect of the embodiment of the present invention proposes more storage equipment of one kind and synchronizes fastly
According to system, which includes:
Snapshot Synchronization Component is stored, storage snapshot Synchronization Component is the core component of this system, and the component is each by splitting
The Snapshot time axis of equipment is stored to ensure that Snapshot time is consistent.Timestamp by issuing data to the end HOST carries out analysis ratio
It is right, it determines that each equipment latest time node is benchmark snapshot node, when the storage equipment progress snapshot for receiving the timestamp, determines
Metadata pointer gauge, the data of the subsequent write-in of storage equipment are written metadata according to snapshot COW (Copy on write) mechanism
Into snapped volume, change data are written in reel.And so on, when all snapshots with all devices in a roll of group are all complete
Cheng Hou, synchronizing information, return write complete.Snapshot time point at this time is completely the same.
Snapped volume group management assembly, snapped volume group management assembly are the accessory parts of this system, for determining that snapshot is synchronous
Distribution range, magnitude control, while showing good visuality to upper layer application conveniently checks and manages.
Timing snapshot component, timing snapshot component is the accessory part of this system, for improving functional need of the invention,
Snapshot can be timed by control time point, time interval, by the function, can effectively control snapshot quantity, when
Between, manual operation is reduced, is improved efficiency, safety is increased.
Host Administration component, Host Administration component are the accessory parts of this system, have brush timestamp under record HOST, really
It protects brush under all LUN and caches consistent function.In the present system, the data to guarantee that all differences store on different LUN can
The creation of snapshot is completed in same timing node, and guarantees the consistency of data, Host Administration component is important a component.
And Host Administration component carries out a small amount of operation just for LUN, will not influence the normal operation of end HOST application itself, also not
Excessive influence can be caused to performance.
Embodiment
More storage equipment are synchronized into snapshot, firstly, connecting more storage equipment into same application, wherein should
Using may include single or multiple HOST, LUN is divided into the application by different storages, application is completed in deployment.
Host Administration component is installed in the HOST host where the application, relevant information has been configured, including the LUN managed
Information, the information of each HOST, the information of storage, the information of multipath, the relevant information of application.
Storage snapshot Synchronization Component receives the relevant information of Host Administration software, be automatically performed application message configuration,
The configuration of volume, HOST configuration information, and store into corresponding configuration file.
By configuring volume group management assembly, the information and topology of each module is presented, by simply configuring, can manage fast
According to synchronous range, scale, quantity and related setting.
When more storage equipment needs, which synchronize, does snapshot, by volume group management trigger snap-shot action, snapshot is stored
Synchronization Component receives the information for doing snapshot, is distributed to each LUN and obtains the final write time stamp of each LUN, same by storage snapshot
Send instructions under step component, makes to brush caching under Host Administration software, it is available to guarantee all snapshot datas, while LUN is in the time
Point completes metadata pointer gauge, at the time point the data of subsequent write-in, covers former Data Position, changes snapshot pointers table.Deng
After completing snapshot to all LUN, returns to snapshot Synchronization Component and complete synchronisation snapshot information, it is synchronous just to complete a wheel at this time
Snapshot operation.
To guarantee that the invention is effective and available, testing mechanism, each HOST of Timing Synchronization joined in Host Administration component
Host information, guarantee each time consistency applied in each host, it is consistent to issue timestamp.
To guarantee the function efficient operation, such as storing equipment is more than 8, and each LUN quantity is more than 64 in LUN group, storage
Snapshot Synchronization Component can carry out distributed treatment automatically, guarantee entire mechanism efficient operation, not influence the performance of application, improve
The availability of whole system.
It can easily be carried out very much specified time, specified time for the availability of sophisticated systems by timing snapshot component
Section synchronizes snapshot, and timing snapshot at the appointed time triggers storage synchronisation snapshot component, while Host Administration assembly synergistic work
Make, the execution of completion timing snapshot.
It is important to note that the embodiment of above system uses the embodiment of the above method to illustrate each mould
The course of work of block, those skilled in the art can be it is readily conceivable that other by these module applications to the above method be implemented
In example.
In addition, above method step and system unit or module also can use controller and for storing so that controlling
Device processed realizes that the computer readable storage medium of above-mentioned steps or unit or the computer program of functions of modules is realized.
Those skilled in the art will also understand is that, various illustrative logical blocks, mould in conjunction with described in disclosure herein
Block, circuit and algorithm steps may be implemented as the combination of electronic hardware, computer software or both.It is hard in order to clearly demonstrate
This interchangeability of part and software, with regard to various exemplary components, square, module, circuit and step function to its into
General description is gone.This function is implemented as software and is also implemented as hardware depending on concrete application and application
To the design constraint of whole system.The function that those skilled in the art can realize in various ways for every kind of concrete application
Can, but this realization decision should not be interpreted as causing a departure from range disclosed by the embodiments of the present invention.
Above-described embodiment, especially any " preferably " embodiment are the possibility examples realized, and only for clear geography
It solves the principle of the present invention and proposes.It can be in the case where not departing from the spirit and principle of techniques described herein to above-mentioned reality
It applies example and carries out many change and modification.All modifications are intended to be included in the scope of the present disclosure and are protected by appended claims
Shield.
Claims (10)
1. a kind of method of more storages equipment synchronisation snapshot, which comprises the following steps:
The instruction that snapshot is executed in response to receiving, by the Snapshot time in the preset time of each storage equipment of same application
Axis is split as timestamp；
The timestamp is compared, the timing node in the timestamp the latest is defined as baseline snapshot node；
Snapshot is executed to each storage equipment based on the baseline snapshot node.
2. the method according to claim 1, wherein by the preset time of each storage equipment of same application
Snapshot time axis be split as timestamp and include:
Snapshot time axis of each logic unit of each storage equipment in one section of preset time is split as timestamp.
3. the method according to claim 1, wherein the preset time includes 20 seconds to 60 seconds.
4. the method according to claim 1, wherein comparing the timestamp and including:
The timestamp that the end HOST issues data is compared.
5. the method according to claim 1, wherein comparing the timestamp further include:
It is ranked up the timestamp is chronologically-based.
6. according to the method described in claim 5, it is characterized in that, the baseline snapshot node is the last in the sequence
Timestamp corresponding to node.
7. the method according to claim 1, wherein being set based on the baseline snapshot node to each storage
Include: for snapshot is executed
Determine metadata pointer gauge, by the data of each storage subsequent write-in of equipment, according to snapshot Copy on write mechanism,
Metadata is written in snapped volume, and change data are written in reel.
8. the method according to claim 1, wherein being set based on the baseline snapshot node to each storage
Include: for snapshot is executed
Snapshot is executed to each logic unit of each storage equipment.
9. a kind of computer equipment, comprising:
At least one processor；And
Memory, the memory are stored with the computer program that can be run on the processor, which is characterized in that the place
Manage the method executed as described in claim 1-8 any one when device executes described program.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In perform claim requires method described in 1-8 any one when the computer program is executed by processor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111295023A (en) * | 2020-03-25 | 2020-06-16 | 众盒智能科技(上海)有限公司 | timeline city grade light show deduction system and method |
| CN111381937A (en) * | 2020-04-02 | 2020-07-07 | 中国电子科技网络信息安全有限公司 | Experimental scene snapshot generating system and method based on time base line |
| CN112219412A (en) * | 2020-08-07 | 2021-01-12 | 福州通安电子有限公司 | Lamp synchronization method and terminal |
| CN117687844A (en) * | 2024-01-30 | 2024-03-12 | 苏州元脑智能科技有限公司 | Method and device for realizing timing snapshot, computer equipment and storage medium |
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| CN111295023A (en) * | 2020-03-25 | 2020-06-16 | 众盒智能科技(上海)有限公司 | timeline city grade light show deduction system and method |
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Application publication date: 20191105 |