CN106326036A - COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof - Google Patents
COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof Download PDFInfo
- Publication number
- CN106326036A CN106326036A CN201610681996.6A CN201610681996A CN106326036A CN 106326036 A CN106326036 A CN 106326036A CN 201610681996 A CN201610681996 A CN 201610681996A CN 106326036 A CN106326036 A CN 106326036A
- Authority
- CN
- China
- Prior art keywords
- write
- linux system
- chinese ink
- data block
- brush dipped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a COW (Copy On Write) snapshoot data brushing and writing method based on a linux system. The method comprises the steps of performing CPW snapshoot operation when IO data are written, and storing generated exception information into a snapshoot data block of a memory; judging whether the snapshoot data block meets a preset brushing and writing condition, and brushing and writing the exception information in the snapshoot data block into a magnetic disk in a unified mode if the snapshoot data block meets the preset brushing and writing condition. The COW snapshoot data brushing and writing method can greatly reduce magnetic disk access times without affecting the CPW snapshoot performance, improves the IO processing speed, and prevents the performance of the linux system from being affected as much as possible. The invention further discloses a COW snapshoot data brushing and writing system based on the linux system. The COW snapshoot data brushing and writing system also has the advantages the same as those of the COW snapshoot data brushing and writing method.
Description
Technical field
The present invention relates to snapping technique field, particularly relate to a kind of COW snapshot data side of writing with a brush dipped in Chinese ink based on Linux system
Method and system thereof.
Background technology
In Linux system, when certain storage position that I/O data is written in the source book of Linux system for the first time,
Can perform COW (Copy On Write, copy-on-write) snapshot operation, the content of COW snapshot operation is: first by this position
Original content reads out, and copies to certain position in purpose volume, is written in this position by I/O data；I.e. newly
During data write, legacy data is stored to another location for avoiding data cover, and one can be produced during this and comprise
The exceptional information of the position mapping relations (between data block) of new legacy data.Current COW snapshot operation often performs once, i.e. can
The exceptional information of generation is write with a brush dipped in Chinese ink to disk.
Owing to, in aforesaid operations, COW snapshot operation is carried out for data block, if the data block size in source book is relatively
Little (for example, 4KB), and the I/O data write is relatively big (for example, 20G), at this moment an I/O write operation may require that and performs repeatedly COW
Snapshot operation, generates multiple exceptional information, therefore the number of times accessing disk in the case of this kind is the biggest, and disk is visited frequently
Ask the processing speed that can drag slow IO, affect the performance of Linux system.
Therefore, how to provide a kind of processing speed fast and the COW snapshot of based on Linux system little on systematic function impact
Data write with a brush dipped in Chinese ink method and system is the problem that those skilled in the art are presently required solution.
Summary of the invention
It is an object of the invention to provide a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink method and system thereof, it is possible to
On the basis of not affecting CPW snapshot performance, greatly reduce the number of times accessing disk, improve the processing speed of IO, keep away as far as possible
Exempt to affect the performance of Linux system.
For solving above-mentioned technical problem, the invention provides a kind of COW snapshot data side of writing with a brush dipped in Chinese ink based on Linux system
Method, including:
When there being I/O data to write, perform CPW snapshot operation, and the snapshot being stored in internal memory by the exceptional information of generation
In data block；
Judge whether described snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, by the example in described snapshot data block
External information is unified to be write with a brush dipped in Chinese ink to disk.
Preferably, described presetting is write with a brush dipped in Chinese ink condition and is specifically included:
Described snapshot data block is judged as the capacity of dirty chained list residing for dirty piece and described dirty piece and limits beyond preset capacity
There is power-down conditions in scope processed and/or described Linux system.
Preferably, described snapshot data block be judged as dirty piece condition particularly as follows:
Described snapshot data block exceedes Preset Time and is not accessed.
Preferably, described preset capacity limits scope is the 75% of relief area fixed capacity value.
Preferably, it is judged that described Linux system whether occur power-down conditions process particularly as follows:
Detect the supply voltage value of described Linux system in real time；
Judge whether described supply voltage value is less than predetermined voltage threshold, if it is, power down feelings occurs in described Linux system
Condition.
Preferably, after judging that power-down conditions occurs in described Linux system, described by the exception in described snapshot data block
Information unification write with a brush dipped in Chinese ink the process to disk particularly as follows:
Control described Linux system to switch to bulky capacitor and power, then the exceptional information in described snapshot data block is united
One writes with a brush dipped in Chinese ink to described disk.
Preferably, the described Linux system of described control switches to also include after bulky capacitor is powered:
Transmission is blocked and is instructed to IO stack, controls described IO stack and stops issuing I/O data；
Determine the state status of current exceptional information, in obtaining status information and writing the superblock of described Linux system,
Process accordingly according to described status information after powering on for described Linux system.
For solving above-mentioned technical problem, present invention also offers a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink and be
System, including:
Snapshot operation module, for when there being I/O data to write, performs CPW snapshot operation, and the exceptional information that will generate
It is stored in the snapshot data block in internal memory；
Write with a brush dipped in Chinese ink judge module, be used for judging whether described snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, by described
Exceptional information in snapshot data block is unified to be write with a brush dipped in Chinese ink to disk.
Preferably, write with a brush dipped in Chinese ink judge module described in specifically include:
Dirty piece of judging unit, is used for judging whether described snapshot data block is judged as residing for dirty piece and described dirty piece
Whether the capacity of dirty chained list limits scope beyond preset capacity, writes with a brush dipped in Chinese ink if it is, described snapshot data block meets described presetting
Condition, triggers and writes with a brush dipped in Chinese ink unit；
Power down judging unit, for the supply voltage value of the described Linux system of detection in real time；Judge described supply voltage value
Whether less than predetermined voltage threshold, if it is, power-down conditions occurs in described Linux system, control described Linux system and switch to
Bulky capacitor is powered, and writes with a brush dipped in Chinese ink unit described in triggering；
Described write with a brush dipped in Chinese ink unit, for writing with a brush dipped in Chinese ink unified for the exceptional information in described snapshot data block to disk.
The invention provides a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink method and system thereof, the present invention cancels
COW snapshot operation generates exceptional information every time and it will write with a brush dipped in Chinese ink operation to disk, but the exception letter that will every time generate
Breath stores in the snapshot data block to internal memory, after through snapshot data block meets and presets and write with a brush dipped in Chinese ink condition, just by snapshot data block
Some exceptional informations of interior storage are disposably write with a brush dipped in Chinese ink to disk.Visible, the present invention is not affecting the basis of CPW snapshot performance
On, greatly reduce the number of times accessing disk, improve the processing speed of IO, avoid the property affecting Linux system as far as possible
Energy.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in prior art and embodiment
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 writes with a brush dipped in Chinese ink the flow process of the process of method for a kind of based on Linux system the COW snapshot data that the present invention provides
Figure；
Fig. 2 writes with a brush dipped in Chinese ink the structural representation of system for a kind of based on Linux system the COW snapshot data that the present invention provides.
Detailed description of the invention
The core of the present invention is to provide a kind of COW snapshot data based on Linux system and writes with a brush dipped in Chinese ink method and system thereof, it is possible to
On the basis of not affecting CPW snapshot performance, greatly reduce the number of times accessing disk, improve the processing speed of IO, keep away as far as possible
Exempt to affect the performance of Linux system.
For making the purpose of the embodiment of the present invention, technical scheme and advantage 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
The a part of 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 not making creative work premise, broadly falls into the scope of protection of the invention.
The invention provides a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink method, shown in Figure 1, Fig. 1 is
A kind of based on Linux system the COW snapshot data that the present invention provides writes with a brush dipped in Chinese ink the flow chart of the process of method；The method includes:
Step s101: when there being I/O data to write, performs CPW snapshot operation, and is stored in by the exceptional information of generation interior
In the snapshot data block deposited；
Step s102: judge whether snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, by the example in snapshot data block
External information is unified to be write with a brush dipped in Chinese ink to disk.
Here exceptional information is specially message bit pattern.Certainly, the present invention does not limit the type of exceptional information.
Wherein, default condition of writing with a brush dipped in Chinese ink here specifically includes:
Snapshot data block is judged as the capacity of dirty chained list residing for dirty piece and dirty piece and limits scope beyond preset capacity
And/or there is power-down conditions in Linux system.
Concrete, snapshot data block be judged as dirty piece condition particularly as follows:
Snapshot data block exceedes Preset Time and is not accessed.
It is understood that snapshot data block is in relief area, in the fixed capacity value of relief area and relief area
The fixed capacity size of data block is relevant, and when data block size is less than 4M, the 2% of distribution main memory is as relief area；Work as number
During according to block size more than 4M, the 25% of distribution virtual memory is as relief area.Wherein, two data are included in each relief area
Block chained list, respectively places the clean chained list of clean block and places the dirty chained list of dirty piece, when snapshot data block exceedes pre-
If the time is not accessed, this snapshot data block can be marked as dirty piece and be positioned in dirty chained list, when the appearance of dirty chained list
When amount limits scope beyond preset capacity, then meet to preset and write with a brush dipped in Chinese ink condition dirty piece of unification in dirty chained list is write with a brush dipped in Chinese ink to disk
In.
Further, preset capacity here limits scope is the 75% of relief area fixed capacity value.Certainly, the present invention is not
Limit relief area fixed capacity value and the specific size of preset capacity restriction scope.
Wherein, it is judged that Linux system whether occur power-down conditions process particularly as follows:
Detect the supply voltage value of Linux system in real time；
Judge whether supply voltage value is less than predetermined voltage threshold, if it is, power-down conditions occurs in Linux system.
Concrete, after judging that power-down conditions occurs in Linux system, write with a brush dipped in Chinese ink unified for the exceptional information in snapshot data block
Process to disk particularly as follows:
Control Linux system to switch to bulky capacitor and power, then by unified for the exceptional information in snapshot data block write with a brush dipped in Chinese ink to
In disk.
Power it is understood that Linux system can be immediately switched to bulky capacitor after a power failure, bulky capacitor face
Time power, during temporary power, whole exceptional informations are write with a brush dipped in Chinese ink to disk, for Linux system after the power-up according to the example of storage
External information carries out data recovery operation, thus ensure that the integrity of data in the case of accident power-off as far as possible.Certainly, this
In predetermined voltage threshold can be with sets itself, the present invention is not construed as limiting.
As preferably, control Linux system and switch to also include after bulky capacitor is powered:
Transmission is blocked instruction and is stopped issuing I/O data to IO stack, control IO stack；
Determine the state status of current exceptional information, in obtaining status information and writing the superblock of Linux system, supply
Linux system processes accordingly according to status information after powering on.
Wherein, status information here includes that exceptional information is in copy state or deletion state etc., such as, copies when being in
During shellfish state, after showing power down, exceptional information has been write with a brush dipped in Chinese ink to disk, and Linux system can be entered according to this exceptional information after powering on
Row data are recovered；When being in deletion state, show that exceptional information is in the state deleted, after Linux system powers on,
Can continue exceptional information is deleted.It addition, status information here can specifically include the state of every exceptional information, also
The state of exceptional information in the range of some start-stop, the shape of the exceptional information in the range of including some start-stop can be included
During state, in status information, also need to include the start-stop range information of correspondence.
Certainly, status information here may also include the information showing other states, and this is not construed as limiting by the present invention.
It addition, default condition of writing with a brush dipped in Chinese ink here can also include: receive and manually trigger signal.I.e. operator manually touch
Function write by hair brush, receives and i.e. judges after manually triggering signal that snapshot data block reaches default and writes with a brush dipped in Chinese ink condition.Certainly, preset write with a brush dipped in Chinese ink
Condition can include three of the above sum or several combinations, or can also include other conditions, and the present invention is only given preferably
Embodiment, does not limit this.
The invention provides a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink method, present invention eliminates COW fast
It will write with a brush dipped in Chinese ink the operation to disk according to operation generates exceptional information every time, but the exceptional information every time generated is stored to
In snapshot data block in internal memory, after through snapshot data block meets and presets and write with a brush dipped in Chinese ink condition, just by storage in snapshot data block
Some exceptional informations are disposably write with a brush dipped in Chinese ink to disk.Visible, the present invention, on the basis of not affecting CPW snapshot performance, subtracts significantly
Lack the number of times accessing disk, improve the processing speed of IO, avoid the performance affecting Linux system as far as possible.
Present invention also offers a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink system, shown in Figure 2, Fig. 2
A kind of based on Linux system COW snapshot data for present invention offer writes with a brush dipped in Chinese ink the structural representation of system.This system includes:
Snapshot operation module 1, for when there being I/O data to write, performs CPW snapshot operation, and the exceptional information that will generate
It is stored in the snapshot data block in internal memory；
Write with a brush dipped in Chinese ink judge module 2, be used for judging whether snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, by snapshot number
Write with a brush dipped in Chinese ink to disk according to the exceptional information in block is unified.
As preferably, write with a brush dipped in Chinese ink judge module 2 and specifically include:
Dirty piece of judging unit 21, is used for judging whether snapshot data block is judged as dirty chained list residing for dirty piece and dirty piece
Capacity whether limit scope beyond preset capacity, if it is, snapshot data block meets presets condition of writing with a brush dipped in Chinese ink, trigger and write with a brush dipped in Chinese ink unit
23；
Power down judging unit 22, for the supply voltage value of detection Linux system in real time；Judge that supply voltage value is the lowest
In predetermined voltage threshold, if it is, Linux system occurs that power-down conditions, control Linux system switch to bulky capacitor and power, and
Unit 23 is write with a brush dipped in Chinese ink in triggering；
Write with a brush dipped in Chinese ink unit 23, for writing with a brush dipped in Chinese ink unified for the exceptional information in snapshot data block to disk.
Wherein, power down judging unit 22 includes voltage sensor, and voltage sensor is for the electricity of detection Linux system in real time
Source magnitude of voltage.
The invention provides a kind of COW snapshot data based on Linux system and write with a brush dipped in Chinese ink system, present invention eliminates COW fast
It will write with a brush dipped in Chinese ink the operation to disk according to operation generates exceptional information every time, but the exceptional information every time generated is stored to
In snapshot data block in internal memory, after through snapshot data block meets and presets and write with a brush dipped in Chinese ink condition, just by storage in snapshot data block
Some exceptional informations are disposably write with a brush dipped in Chinese ink to disk.Visible, the present invention, on the basis of not affecting CPW snapshot performance, subtracts significantly
Lack the number of times accessing disk, improve the processing speed of IO, avoid the performance affecting Linux system as far as possible.
It should be noted that in this manual, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (9)
1. a COW snapshot data based on Linux system writes with a brush dipped in Chinese ink method, it is characterised in that including:
When there being I/O data to write, perform CPW snapshot operation, and the snapshot data being stored in internal memory by the exceptional information of generation
In block；
Judge whether described snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, the exception in described snapshot data block believed
Breath is unified to be write with a brush dipped in Chinese ink to disk.
Method the most according to claim 1, it is characterised in that described presetting is write with a brush dipped in Chinese ink condition and specifically included:
Described snapshot data block is judged as the capacity of dirty chained list residing for dirty piece and described dirty piece and limits model beyond preset capacity
Enclose and/or power-down conditions occurs in described Linux system.
Method the most according to claim 2, it is characterised in that the condition that described snapshot data block is judged as dirty piece is concrete
For:
Described snapshot data block exceedes Preset Time and is not accessed.
Method the most according to claim 2, it is characterised in that it is relief area fixed capacity that described preset capacity limits scope
The 75% of value.
Method the most according to claim 2, it is characterised in that judge whether described Linux system power-down conditions occurs
Process particularly as follows:
Detect the supply voltage value of described Linux system in real time；
Judge whether described supply voltage value is less than predetermined voltage threshold, if it is, power-down conditions occurs in described Linux system.
Method the most according to claim 5, it is characterised in that after judging that power-down conditions occurs in described Linux system, institute
State write with a brush dipped in Chinese ink the process to disk by unified for the exceptional information in described snapshot data block particularly as follows:
Control described Linux system to switch to bulky capacitor and power, then by unified for the exceptional information in described snapshot data block brush
It is written in described disk.
Method the most according to claim 6, it is characterised in that the described Linux system of described control switches to bulky capacitor and supplies
Also include after electricity:
Transmission is blocked and is instructed to IO stack, controls described IO stack and stops issuing I/O data；
Determine the state status of current exceptional information, in obtaining status information and writing the superblock of described Linux system, for institute
State and process accordingly according to described status information after Linux system powers on.
8. a COW snapshot data based on Linux system writes with a brush dipped in Chinese ink system, it is characterised in that including:
Snapshot operation module, for when there being I/O data to write, performs CPW snapshot operation, and the exceptional information storage that will generate
In snapshot data block in internal memory；
Write with a brush dipped in Chinese ink judge module, be used for judging whether described snapshot data block reaches to preset and write with a brush dipped in Chinese ink condition, if it is, by described snapshot
Exceptional information in data block is unified to be write with a brush dipped in Chinese ink to disk.
System the most according to claim 8, it is characterised in that described in write with a brush dipped in Chinese ink judge module and specifically include:
Dirty piece of judging unit, is used for judging whether described snapshot data block is judged as dirty chain residing for dirty piece and described dirty piece
Whether the capacity of table limits scope beyond preset capacity, if it is, described snapshot data block meets described presetting writes with a brush dipped in Chinese ink condition, touches
Hair brush r/w cell；
Power down judging unit, for the supply voltage value of the described Linux system of detection in real time；Whether judge described supply voltage value
Less than predetermined voltage threshold, if it is, power-down conditions occurs in described Linux system, control described Linux system and switch to big electricity
Hold power supply, and write with a brush dipped in Chinese ink unit described in triggering；
Described write with a brush dipped in Chinese ink unit, for writing with a brush dipped in Chinese ink unified for the exceptional information in described snapshot data block to disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681996.6A CN106326036A (en) | 2016-08-17 | 2016-08-17 | COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681996.6A CN106326036A (en) | 2016-08-17 | 2016-08-17 | COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106326036A true CN106326036A (en) | 2017-01-11 |
Family
ID=57743570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610681996.6A Pending CN106326036A (en) | 2016-08-17 | 2016-08-17 | COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106326036A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334139B1 (en) * | 1997-06-12 | 2001-12-25 | Mitsubishi Denki Kabushiki Kaisha | Agent system |
| CN1949197A (en) * | 2006-11-23 | 2007-04-18 | 北京飞天诚信科技有限公司 | Portable equipment based on non-volatile memory and method of realizing power failure protection |
| CN201741411U (en) * | 2010-08-26 | 2011-02-09 | 浪潮电子信息产业股份有限公司 | Quickly-erasing solid state disk |
| CN102053929A (en) * | 2010-12-17 | 2011-05-11 | 天津曙光计算机产业有限公司 | IO cache operation method and system based on DM layer of Linux system |
| CN105843711A (en) * | 2016-06-21 | 2016-08-10 | 北京飞杰信息技术有限公司 | Data powder-failure protection method and system |
-
2016
- 2016-08-17 CN CN201610681996.6A patent/CN106326036A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334139B1 (en) * | 1997-06-12 | 2001-12-25 | Mitsubishi Denki Kabushiki Kaisha | Agent system |
| CN1949197A (en) * | 2006-11-23 | 2007-04-18 | 北京飞天诚信科技有限公司 | Portable equipment based on non-volatile memory and method of realizing power failure protection |
| CN201741411U (en) * | 2010-08-26 | 2011-02-09 | 浪潮电子信息产业股份有限公司 | Quickly-erasing solid state disk |
| CN102053929A (en) * | 2010-12-17 | 2011-05-11 | 天津曙光计算机产业有限公司 | IO cache operation method and system based on DM layer of Linux system |
| CN105843711A (en) * | 2016-06-21 | 2016-08-10 | 北京飞杰信息技术有限公司 | Data powder-failure protection method and system |
Non-Patent Citations (1)
| Title |
|---|
| 郁红英，李春强: "《计算机操作系统实验指导》", 30 September 2008 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101477482B (en) | Method for recovering flash memory data at power-off of built-in Linux system | |
| CN102201259A (en) | Wear leveling method for nonvolatile memory | |
| US9032235B2 (en) | Semiconductor storage device and method for controlling the semiconductor storage device | |
| TWI619018B (en) | Garbage collection method for data storage device | |
| CN104978361B (en) | Method and device for storing real-time monitoring data of power environment | |
| CN102789431B (en) | Data guard method and system | |
| JP2006099763A5 (en) | ||
| CN105868122A (en) | Data processing method and device for quick flashing storage equipment | |
| CN106569692A (en) | Method and device for erasing gesture | |
| CN103345189A (en) | Controller and power fail safeguard method | |
| CN103713941B (en) | Virtual machine image cloning process and system based on qcow2 forms | |
| CN101552840B (en) | A method to reduce the power consumption of mobile terminals and the mobile terminals | |
| CN106569148A (en) | Fault processing system and method of vehicle-mounted power source | |
| CN102279784A (en) | Electronic equipment and method and system for reminding user of use condition of system resource of electronic equipment | |
| CN105023610B (en) | Storage unit controller, control method thereof, and storage device | |
| CN103399520B (en) | For power failure data access method and the device of programmable logic controller system | |
| CN103927215A (en) | kvm virtual machine scheduling optimization method and system based on memory disk and SSD disk | |
| CN105739982A (en) | System hibernation method and apparatus | |
| CN111124094A (en) | Server hard disk power-on and power-off control method, control device and control equipment | |
| CN106326036A (en) | COW (Copy On Write) snapshoot data brushing and writing method based on linux system and system thereof | |
| KR20130090526A (en) | Apparatus and method for memory overlay | |
| CN104834610A (en) | Magnetic disk power-down protection circuit and method | |
| CN111141034A (en) | Blower control method, blower control device and storage medium | |
| CN106650409A (en) | Terminal control method and terminal | |
| CN102279815A (en) | Flash-memory-based storage device and data writing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |