CN107894932A - The method and its system of data consistency before and after holding system reboot - Google Patents
The method and its system of data consistency before and after holding system reboot Download PDFInfo
- Publication number
- CN107894932A CN107894932A CN201610864064.5A CN201610864064A CN107894932A CN 107894932 A CN107894932 A CN 107894932A CN 201610864064 A CN201610864064 A CN 201610864064A CN 107894932 A CN107894932 A CN 107894932A
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- China
- Prior art keywords
- block device
- internal memory
- memory
- physical memory
- memory block
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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
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1441—Resetting or repowering
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
Abstract
The invention discloses the method and its system of data consistency before and after a kind of holding system reboot, method includes：The total physical memory of system is divided into the reserved physical memory and system control internal memory of default size；System control internal memory is dimensioned to boot kernel parameter；Using the reserved physical memory as internal memory block device, and write corresponding block device driver；After system restarting, block device driver corresponding to the reserved physical memory is loaded；If the internal memory block device formats the internal memory block device without formatting；The memory block equipment is mounted to default catalogue.By setting reserved physical memory, some interim useful informations can be safely saved on internal memory, without frequently wiping other external memory devices；Feasible system restarts the uniformity of front and rear internal storage data, and improves the flexibility to message file operation.
Description
Technical field
The present invention relates to a kind of side of data consistency before and after technical field of data storage, more particularly to holding system reboot
Method and its system.
Background technology
Current many embedded products are required for preserving some temporary information files, or timing is sent to message file
Remote server.The save location of these temporary files is probably on impermanent memory memory or permanent memory memory.
Message file is stored on impermanent memory memory and some drawbacks be present, if software watchdog, which resets, causes system reboot
Or these message files can be lost during due to other reasonses system reboot.Message file is stored on permanent memory memory
There is also some drawbacks, it is necessary to frequent flash memory part, so as to shorten the service life of memory device.In order to solve above disadvantage
End, some embedded technology schemes are used in system initialisation phase, such as Chinese patent in Publication No. CN102193847A
Open file, reserved memory will not be included into internal storage management system, then by directly operating and not reserved by system administration
The physical address deposited enters row information storage, but this scheme has the ineffective activity of operation, it has not been convenient to the operation to message file.
The content of the invention
The technical problems to be solved by the invention are：It is proposed it is a kind of keep system reboot before and after data consistency method and
Its system, prevent from causing file to be lost due to system, and improve the flexibility to message file operation.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：One kind keeps data before and after system reboot
The method of uniformity, including：
The total physical memory of system is divided into the reserved physical memory and system control internal memory of default size；
System control internal memory is dimensioned to boot kernel parameter；
Using the reserved physical memory as internal memory block device, and write corresponding block device driver；
After system restarting, block device driver corresponding to the reserved physical memory is loaded；
If the internal memory block device formats the internal memory block device without formatting；
The memory block equipment is mounted to default catalogue.
The invention further relates to a kind of system of data consistency before and after holding system reboot, including：
Division module, for being divided into the total physical memory of system in the reserved physical memory and system control of default size
Deposit；
Setup module, for system control internal memory to be dimensioned into boot kernel parameter；
Module is write, for using the reserved physical memory as internal memory block device, and writes corresponding Block Device Driver
Program；
Load-on module, after being restarted for system, load block device driver corresponding to the reserved physical memory；
Formatting module, it is used for, if the internal memory block device formats the internal memory block device without formatting；
Carry module, for the memory block equipment to be mounted into default catalogue.
The beneficial effects of the present invention are：, can be some interim useful information safety by setting reserved physical memory
Ground is saved on internal memory, and without frequently wiping other external memory devices, the performance and can that can improve system extends outside
The service life of memory device；Meanwhile memory block equipment corresponding to reserved physical memory is mounted to assigned catalogue, i.e., not by
File system is established on the internal memory block device of system control, both message file can be temporarily held in volatile dynamic storage
The message file before once system reboot can above be retained after system reboot again not lose, and improve and message file is grasped
The flexibility of work；Preservation message file is applicable not only to apply also for preserving other interim vital documents.
Brief description of the drawings
Fig. 1 is the method flow diagram of data consistency before and after a kind of holding system reboot of the present invention；
Fig. 2 is the method flow diagram of the embodiment of the present invention one；
Fig. 3 be the present invention it is a kind of keep system reboot before and after data consistency system structural representation；
Fig. 4 is the system structure diagram of the embodiment of the present invention two.
Label declaration：
1st, division module；2nd, setup module；3rd, module is write；4th, load-on module；5th, formatting module；6th, carry module；
7th, preserving module.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained in detail.
The design of most critical of the present invention is：Reserved physical memory is set, and is mounted to default catalogue.
Referring to Fig. 1, it is a kind of keep system reboot before and after data consistency method, including：
The total physical memory of system is divided into the reserved physical memory and system control internal memory of default size；
System control internal memory is dimensioned to boot kernel parameter；
Using the reserved physical memory as internal memory block device, and write corresponding block device driver；
After system restarting, block device driver corresponding to the reserved physical memory is loaded；
If the internal memory block device formats the internal memory block device without formatting；
The memory block equipment is mounted to default catalogue.
It was found from foregoing description, the beneficial effects of the present invention are：By setting reserved physical memory, some can be faced
When useful information be safely saved on internal memory, without frequently wiping other external memory devices；Before feasible system is restarted
The uniformity of internal storage data afterwards, and improve the flexibility to message file operation.
Further, after described " the memory block equipment is mounted into default catalogue ", further comprise：
Message file is saved in the default catalogue.
Seen from the above description, message file is saved in mount directory, after system reboot, in mount directory it can be seen that
Existing complete file before restarting.
Further, the system is Linux system.
Refer to Fig. 3, the present invention also proposes a kind of system for keeping data consistency before and after system reboot, including：
Division module, for being divided into the total physical memory of system in the reserved physical memory and system control of default size
Deposit；
Setup module, for system control internal memory to be dimensioned into boot kernel parameter；
Module is write, for using the reserved physical memory as internal memory block device, and writes corresponding Block Device Driver
Program；
Load-on module, after being restarted for system, load block device driver corresponding to the reserved physical memory；
Formatting module, it is used for, if the internal memory block device formats the internal memory block device without formatting；
Carry module, for the memory block equipment to be mounted into default catalogue.
Further, in addition to：
Preserving module, for message file to be saved in into the default catalogue.
Further, the system is Linux system.
Embodiment one
Fig. 2 is refer to, embodiments of the invention one are：A kind of method of data consistency before and after holding system reboot, can
Applied to Linux system, comprise the following steps：
S1：The total physical memory of system is divided into the reserved physical memory and system control internal memory of default size；It is for example, false
If the size of the total physical memory of system is x, by the y that is sized to of reserved physical memory, then it is z=that system, which controls the size of internal memory,
x-y；Reserved physical memory is not controlled then by system.
S2：System control internal memory is dimensioned to boot kernel parameter；Specifically, boot codes can be changed, are being drawn
The size that system is controlled internal memory when leading kernel mirror image passes to kernel as systematic parameter, for example, setting mem=z.
S3：Using the reserved physical memory as internal memory block device, and write corresponding block device driver；Block device
Driver is used for the internal memory block device for controlling corresponding reserved physical memory, there is provided the operate interface of internal memory block device.
S4：After system restarting, block device driver corresponding to the reserved physical memory is loaded.
S5：Judge whether the internal memory block device is formatted, if it is not, performing step S6.
S6：Format the internal memory block device.If not formatted, illustrate it is that power supply electrifying starts, now reserve interior
The internal storage data of counterfoil, it is necessary to reformat reserved internal memory block device, otherwise illustrates that electricity is restarted in non-power, without lattice to be empty
Formula internal memory block device.
S7：The memory block equipment is mounted to default catalogue；For example, be mounted to/ram_log mount points on.
S8：Message file is saved in the default catalogue；After restarting systems, step S4 is performed.
During system operation, if restarting systems, it is not as long as being reloaded after system restarting
The block device driver of the internal memory block device of system control is simultaneously mounted to assigned catalogue, before mount directory is it can be seen that restart
Existing complete file, realize that Linux system restarts the uniformity of front and rear internal storage data.
Embodiment two
Fig. 4 is refer to, the present embodiment is data consistency before and after a kind of holding system reboot for corresponding to above-described embodiment
System, including：
Division module 1, for the total physical memory of system to be divided into reserved physical memory and the system control of default size
Internal memory；
Setup module 2, for system control internal memory to be dimensioned into boot kernel parameter；
Module 3 is write, for using the reserved physical memory as internal memory block device, and writes corresponding Block Device Driver
Program；
Load-on module 4, after being restarted for system, load Block Device Driver journey corresponding to the reserved physical memory
Sequence；
Formatting module 5, is used for, if the internal memory block device formats the internal memory block device without formatting；
Carry module 6, for the memory block equipment to be mounted into default catalogue.
Further, in addition to：
Preserving module 7, for message file to be saved in into the default catalogue.
Further, the system is Linux system.
In summary, it is provided by the invention it is a kind of keep system reboot before and after data consistency method and its system, lead to
The reserved physical memory of setting is crossed, some interim useful informations can be safely saved on internal memory, without frequently wiping it
His external memory device, the performance and can that can improve system extend the service life of external memory device；Meanwhile by reserved thing
Memory block equipment corresponding to reason internal memory is mounted to assigned catalogue, i.e., is not establishing file system on the internal memory block device by system control
System, can not only be temporarily held in message file on volatile dynamic storage but also can retain after system reboot and be once
Message file before system is restarted is not lost, and improves the flexibility to message file operation；It is applicable not only to preserve information text
Part applies also for preserving other interim vital documents.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (6)
1. a kind of method of data consistency before and after holding system reboot, it is characterised in that including：
The total physical memory of system is divided into the reserved physical memory and system control internal memory of default size；
System control internal memory is dimensioned to boot kernel parameter；
Using the reserved physical memory as internal memory block device, and write corresponding block device driver；
After system restarting, block device driver corresponding to the reserved physical memory is loaded；
If the internal memory block device formats the internal memory block device without formatting；
The memory block equipment is mounted to default catalogue.
2. the method for data consistency before and after holding system reboot according to claim 1, it is characterised in that described " by
The memory block equipment is mounted to default catalogue " after, further comprise：
Message file is saved in the default catalogue.
3. the method for data consistency before and after the holding system reboot according to claim any one of 1-2, it is characterised in that
The system is Linux system.
A kind of 4. system of data consistency before and after holding system reboot, it is characterised in that including：
Division module, for the total physical memory of system to be divided into the reserved physical memory and system control internal memory of default size；
Setup module, for system control internal memory to be dimensioned into boot kernel parameter；
Module is write, for using the reserved physical memory as internal memory block device, and writes corresponding block device driver；
Load-on module, after being restarted for system, load block device driver corresponding to the reserved physical memory；
Formatting module, it is used for, if the internal memory block device formats the internal memory block device without formatting；
Carry module, for the memory block equipment to be mounted into default catalogue.
5. the system of data consistency before and after holding system reboot according to claim 4, it is characterised in that also include：
Preserving module, for message file to be saved in into the default catalogue.
6. the system of data consistency before and after the holding system reboot according to claim any one of 4-5, it is characterised in that
The system is Linux system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864064.5A CN107894932A (en) | 2016-09-29 | 2016-09-29 | The method and its system of data consistency before and after holding system reboot |
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| CN201610864064.5A CN107894932A (en) | 2016-09-29 | 2016-09-29 | The method and its system of data consistency before and after holding system reboot |
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| CN107894932A true CN107894932A (en) | 2018-04-10 |
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| CN201610864064.5A Pending CN107894932A (en) | 2016-09-29 | 2016-09-29 | The method and its system of data consistency before and after holding system reboot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109271206A (en) * | 2018-08-24 | 2019-01-25 | 晶晨半导体(上海)股份有限公司 | A kind of memory compression and store method that exception is live |
| WO2020119213A1 (en) * | 2018-12-11 | 2020-06-18 | 海信视像科技股份有限公司 | Methods for generating and loading mirror file, and device |
| CN113660103A (en) * | 2020-05-12 | 2021-11-16 | 大唐移动通信设备有限公司 | Startup information recording method and device, electronic equipment and storage medium |
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| US20070083792A1 (en) * | 2005-10-11 | 2007-04-12 | Mcdermott Andrew | System and method for error detection and reporting |
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| US6591389B1 (en) * | 1999-01-29 | 2003-07-08 | Lucent Technologies Inc. | Testing system for circuit board self-test |
| CN1479209A (en) * | 2003-07-25 | 2004-03-03 | 北京港湾网络有限公司 | Method of maintaining stored information by synchronous dynamic random access memory |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109271206A (en) * | 2018-08-24 | 2019-01-25 | 晶晨半导体(上海)股份有限公司 | A kind of memory compression and store method that exception is live |
| WO2020119213A1 (en) * | 2018-12-11 | 2020-06-18 | 海信视像科技股份有限公司 | Methods for generating and loading mirror file, and device |
| CN113660103A (en) * | 2020-05-12 | 2021-11-16 | 大唐移动通信设备有限公司 | Startup information recording method and device, electronic equipment and storage medium |
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Application publication date: 20180410 |