CN107391396A - The data partition method and writeable fast photographing device of a kind of writeable fast photographing device - Google Patents
The data partition method and writeable fast photographing device of a kind of writeable fast photographing device Download PDFInfo
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- CN107391396A CN107391396A CN201710625184.4A CN201710625184A CN107391396A CN 107391396 A CN107391396 A CN 107391396A CN 201710625184 A CN201710625184 A CN 201710625184A CN 107391396 A CN107391396 A CN 107391396A
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- data
- writeable
- photographing device
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- fast photographing
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- 238000005192 partition Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013507 mapping Methods 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 abstract description 16
- 238000013500 data storage Methods 0.000 abstract description 9
- 230000008520 organization Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0646—Configuration or reconfiguration
- G06F12/0653—Configuration or reconfiguration with centralised address assignment
Abstract
The invention discloses a kind of data partition method of writeable fast photographing device and writeable fast photographing device, this method to include：Receive the data of default logical block addresses；If writing copy data headed by data, the head in the space of writeable fast photographing device writes space data storage corresponding to the distribution of copy area, and establishes the mapping that logical block addresses write the corresponding space of copy area distribution with head；If data, which are main frame application, writes data, space data storage corresponding to the host services area distribution in the space of writeable fast photographing device, and establish the mapping in the corresponding space that logical block addresses are distributed with host services area；The present invention utilizes the logical partition inside writeable fast photographing device, head is write into copy data and writes data partition storage with main frame application, and the logically mapping of partitioned organization metadata, the data acquisition system of snapshot time is done so as to ensure that writeable fast photographing device can both store first copy data of writing, while data can be write with storage host application again.
Description
Technical field
The present invention relates to data center's calamity for technical field, more particularly to a kind of data partition method of writeable fast photographing device
And writeable fast photographing device.
Background technology
Snapshot is a kind of calamity for technology, and on specifying a completely available copy of data acquisition system, the copy includes corresponding
Image of the data at some time point (time point that copy starts).Snapshot can be a copy of the data represented by it,
Can also be a duplicate of data.
In the prior art, industry writes the snapshot in copy implementation in head, receives to write for the first time after snapshot is created and asks
Ask rear, it is necessary to first carry out the data read-out of correspondence position, be then stored in other positions and go, finally again write new write request
Go.So, for writeable fast photographing device, if same position is accessed by main frame application write request, main frame application will be made to write data
Covering head writes copy data, causes first copy data of writing completely to preserve the data acquisition system for doing snapshot time.Therefore, how to protect
The first data acquisition system write copy data and do snapshot time can both have been stored by demonstrate,proving writeable fast photographing device, while can be answered again with storage host
With data are write, be now urgent need to resolve the problem of.
The content of the invention
It is an object of the invention to provide a kind of data partition method of writeable fast photographing device and writeable fast photographing device, to utilize
Logical partition inside writeable fast photographing device, head is write into copy data and writes data partition storage with main frame application, is improved in data
The performance of heart snapshot, improve the competitiveness of data center.
In order to solve the above technical problems, the present invention provides a kind of data partition method of writeable fast photographing device, including：
Receive the data of default logical block addresses；
If writing copy data headed by the data, it is corresponding that the head in the space of writeable fast photographing device writes copy area distribution
Space store the data, and establish the logical block addresses and write reflecting for the corresponding space distributed copy area with the head
Penetrate；
If the data, which are main frame application, writes data, the host services in the space of the writeable fast photographing device are distinguished
The data are stored with corresponding space, and establish the corresponding sky that the logical block addresses are distributed with the host services area
Between mapping.
Optionally, before the data for receiving default logical block addresses, in addition to：
Logical partition is carried out to the space of the writeable fast photographing device, the space of the writeable fast photographing device is divided into institute
State head and write copy area and the host services area.
Optionally, the space of the writeable fast photographing device is specially linear address space.
In addition, present invention also offers a kind of writeable fast photographing device, including：
Receiving module, for receiving the data of default logical block addresses；
First memory module, if for writing copy data headed by the data, in the space of writeable fast photographing device
Head writes the storage data in space corresponding to the distribution of copy area, and establishes the logical block addresses and write copy differentiation with the head
The mapping in the corresponding space matched somebody with somebody；
Second memory module, if being that data are write in main frame application for the data, in the sky of the writeable fast photographing device
Between in the distribution of host services area corresponding to space store the data, and establish the logical block addresses and taken with the main frame
The mapping in the corresponding space of business area distribution.
Optionally, the device also includes：
Division module, for carrying out logical partition to the space of the writeable fast photographing device, by the writeable fast photographing device
Space be divided into the head and write copy area and the host services area.
A kind of data partition method of writeable fast photographing device provided by the present invention, including：Receive default logical blocks
The data of address；If writing copy data headed by data, it is corresponding that the head in the space of writeable fast photographing device writes copy area distribution
Space data storage, and establish the mapping in logical block addresses and the first corresponding space for writing copy area distribution；If data are
Data are write in main frame application, then space data storage corresponding to the host services area distribution in the space of writeable fast photographing device, and
Establish the mapping in the corresponding space that logical block addresses are distributed with host services area；
Distribute and correspond to it can be seen that the present invention writes copy area or host services area by the head in the space of writeable fast photographing device
Space storage head write copy data or main frame application write data, can utilize writeable fast photographing device inside logical partition, will
Head writes copy data and writes data partition storage with main frame application；By establishing, logical block addresses write copy area with head or main frame takes
Be engaged in area's distribution corresponding space mapping, can logically partitioned organization metadata mapping, so as to ensure writeable snapshot
Device can both store first copy data of writing and do the data acquisition system of snapshot time, while can write data with storage host application again,
The performance of data center's snapshot is improved, improves the competitiveness of data center.To be filled in addition, present invention also offers a kind of writeable snapshot
Put, equally with above-mentioned beneficial effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, 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 data partition method for writeable fast photographing device that Fig. 1 is provided by the embodiment of the present invention；
A kind of data storage signal of the data partition method for writeable fast photographing device that Fig. 2 is provided by the embodiment of the present invention
Figure；
A kind of structure chart for writeable fast photographing device that Fig. 3 is provided by the embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It refer to Fig. 1, a kind of stream of the data partition method for writeable fast photographing device that Fig. 1 is provided by the embodiment of the present invention
Cheng Tu.This method can include：
Step 101：Receive the data of default logical block addresses.
Wherein, for the concrete mode of this step, can voluntarily be set according to practical scene and user's request by designer
Put, such as can be by the way of similar to prior art, the present embodiment does not do any restrictions to this.
Step 102：If writing copy data headed by data, the head in the space of writeable fast photographing device writes copy area distribution
Corresponding space data storage, and establish the mapping that logical block addresses write the corresponding space of copy area distribution with head.
Wherein, the space of writeable fast photographing device can be a linear address space, can carry out this linear address space
Logical partition, copy area and host services area are write headed by division；Other subregions can also be marked off.Can as long as can mark off
To store the Liang Ge areas that head writes copy data and data are write in main frame application respectively, for specific dividing mode and the sky marked off
Between size, can voluntarily be set according to practical scene and user's request by designer, the present embodiment does not do any limit to this
System.
Step 103：If data, which are main frame application, writes data, the host services in the space of writeable fast photographing device are distinguished
With corresponding space data storage, and establish the mapping in the corresponding space that logical block addresses are distributed with host services area.
It is understood that step 102 and step 103 can be with as shown in Fig. 2 snapshot (writeable fast photographing device) ought be established
Afterwards, when the head for receiving default logical block addresses Lba1 writes copy data, space corresponding to the distribution of copy area can be write in head
P1 storages head writes copy data, and establishes Lba1->P1 mapping.Similarly, can when main frame application writes data to Lba1
To write data in space p4 storage host applications corresponding to the distribution of host services area, and establish lba1->P4 mapping, so may be used
So that head writes copy data and data are write in main frame application by isolating, the data of snapshot time are done so as to ensure that snapshot can both store
Set can receive main frame application write access simultaneously again.
In the present embodiment, the embodiment of the present invention writes copy area by the head in the space of writeable fast photographing device or main frame takes
Space storage head writes copy data corresponding to the distribution of business area or data are write in main frame application, can utilize inside writeable fast photographing device
Logical partition, head is write into copy data and writes data partition storage with main frame application；Write by establishing logical block addresses and copied with head
The mapping in the corresponding space of Bei Qu or the distribution of host services area, can logically partitioned organization metadata mapping, so as to
Ensure that writeable fast photographing device can both store the first data acquisition system write copy data and do snapshot time, while again can be with storage host
Using data are write, the performance of data center's snapshot is improved, improves the competitiveness of data center.
It refer to Fig. 3, a kind of structure chart for writeable fast photographing device that Fig. 3 is provided by the embodiment of the present invention.The device can
With including：
Receiving module 100, for receiving the data of default logical block addresses；
First memory module 200, if for writing copy data headed by data, the head in the space of writeable fast photographing device
Space data storage corresponding to the distribution of copy area is write, and establishes the corresponding space that logical block addresses write copy area distribution with head
Mapping；
Second memory module 300, if being that data are write in main frame application for data, in the space of writeable fast photographing device
Space data storage corresponding to the distribution of host services area, and establish the corresponding sky that logical block addresses are distributed with host services area
Between mapping.
Optionally, the device can also include：
Division module, for carrying out logical partition to the space of writeable fast photographing device, the space of writeable fast photographing device is drawn
It is divided into head and writes copy area and host services area.
In the present embodiment, the embodiment of the present invention is by the first memory module 200 and the second memory module 300, writeable fast
According to the head in the space of device write copy area or host services area distribution corresponding to space storage head write copy data or main frame should
With data are write, the logical partition inside writeable fast photographing device can be utilized, head is write into copy data and writes data point with main frame application
Deposit in area；, can by establishing logical block addresses and the first mapping for writing the corresponding space that copy area or host services area distribute
With the mapping of logically partitioned organization metadata, done soon so as to ensure that writeable fast photographing device can both store head and write copy data
According to the data acquisition system at moment, while data can be write with storage host application again, improve the performance of data center's snapshot, improve data
The competitiveness at center.
Each embodiment is described by the way of progressive in specification, and what each embodiment 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, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The data partition method to writeable fast photographing device provided by the present invention and writeable fast photographing device have been carried out in detail above
It is thin to introduce.Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the ordinary skill for the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification, these improvement can also be carried out to the present invention
Also fallen into modification in the protection domain of the claims in the present invention.
Claims (5)
- A kind of 1. data partition method of writeable fast photographing device, it is characterised in that including：Receive the data of default logical block addresses；If writing copy data headed by the data, the head in the space of writeable fast photographing device writes empty corresponding to the distribution of copy area Between store the data, and establish the mapping that the logical block addresses and the head write the corresponding space of copy area distribution；If the data, which are main frame application, writes data, the host services in the space of the writeable fast photographing device distinguish pairing The space answered stores the data, and establishes the corresponding space that the logical block addresses are distributed with the host services area Mapping.
- 2. the data partition method of writeable fast photographing device according to claim 1, it is characterised in that the reception is default Before the data of logical block addresses, in addition to：Logical partition is carried out to the space of the writeable fast photographing device, the space of the writeable fast photographing device is divided into the head Write copy area and the host services area.
- 3. the data partition method of writeable fast photographing device according to claim 2, it is characterised in that the writeable snapshot dress The space put is specially linear address space.
- A kind of 4. writeable fast photographing device, it is characterised in that including：Receiving module, for receiving the data of default logical block addresses；First memory module, if for writing copy data headed by the data, the head in the space of writeable fast photographing device writes Space corresponding to the distribution of copy area stores the data, and establishes the logical block addresses and write copy area distribution with the head The mapping in corresponding space；Second memory module, if being that data are write in main frame application for the data, in the space of the writeable fast photographing device The distribution of host services area corresponding to space store the data, and establish the logical block addresses and the host services area The mapping in the corresponding space of distribution.
- 5. writeable fast photographing device according to claim 4, it is characterised in that also include：Division module, for carrying out logical partition to the space of the writeable fast photographing device, by the sky of the writeable fast photographing device Between be divided into the head and write copy area and the host services area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710625184.4A CN107391396B (en) | 2017-07-27 | 2017-07-27 | Data partitioning method of snapshot-writable device and snapshot-writable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710625184.4A CN107391396B (en) | 2017-07-27 | 2017-07-27 | Data partitioning method of snapshot-writable device and snapshot-writable device |
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| CN107391396A true CN107391396A (en) | 2017-11-24 |
| CN107391396B CN107391396B (en) | 2020-10-23 |
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|---|---|---|---|---|
| CN101140542A (en) * | 2007-10-19 | 2008-03-12 | 华中科技大学 | Method for copying snapshot writing response time in the time of shortening writing time |
| CN101174231A (en) * | 2006-11-03 | 2008-05-07 | 英业达股份有限公司 | Snap backup method |
| US20110161298A1 (en) * | 2009-12-29 | 2011-06-30 | Grobman Steven L | System and method for opportunistic re-imaging using cannibalistic storage techniques on sparse storage devices |
| US20150193315A1 (en) * | 2014-01-07 | 2015-07-09 | Electronics And Telecommunications Research Institute | Method and device for managing multiple snapshots of data strorage device |
| CN105988895A (en) * | 2015-02-10 | 2016-10-05 | 中兴通讯股份有限公司 | Snapshot processing method and device |
| US20170139840A1 (en) * | 2015-11-12 | 2017-05-18 | International Business Machines Corporation | Memory mapping for object-based storage devices |
-
2017
- 2017-07-27 CN CN201710625184.4A patent/CN107391396B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174231A (en) * | 2006-11-03 | 2008-05-07 | 英业达股份有限公司 | Snap backup method |
| CN101140542A (en) * | 2007-10-19 | 2008-03-12 | 华中科技大学 | Method for copying snapshot writing response time in the time of shortening writing time |
| US20110161298A1 (en) * | 2009-12-29 | 2011-06-30 | Grobman Steven L | System and method for opportunistic re-imaging using cannibalistic storage techniques on sparse storage devices |
| US20150193315A1 (en) * | 2014-01-07 | 2015-07-09 | Electronics And Telecommunications Research Institute | Method and device for managing multiple snapshots of data strorage device |
| CN105988895A (en) * | 2015-02-10 | 2016-10-05 | 中兴通讯股份有限公司 | Snapshot processing method and device |
| US20170139840A1 (en) * | 2015-11-12 | 2017-05-18 | International Business Machines Corporation | Memory mapping for object-based storage devices |
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