CN106294019A - A kind of operating system mirror image preserves and restoration methods and device - Google Patents

A kind of operating system mirror image preserves and restoration methods and device Download PDF

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Publication number
CN106294019A
CN106294019A CN201610658753.0A CN201610658753A CN106294019A CN 106294019 A CN106294019 A CN 106294019A CN 201610658753 A CN201610658753 A CN 201610658753A CN 106294019 A CN106294019 A CN 106294019A
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CN
China
Prior art keywords
address space
reserved address
nonvolatile memory
operating
memory
Prior art date
Application number
CN201610658753.0A
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Chinese (zh)
Inventor
范冬冬
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浪潮(北京)电子信息产业有限公司
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Priority to CN201610658753.0A priority Critical patent/CN106294019A/en
Publication of CN106294019A publication Critical patent/CN106294019A/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14Error detection or correction of the data by redundancy in operation
    • G06F11/1402Saving, restoring, recovering or retrying
    • G06F11/1415Saving, restoring, recovering or retrying at system level
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/445Program loading or initiating
    • G06F9/44505Configuring for program initiating, e.g. using registry, configuration files

Abstract

The invention discloses a kind of operating system mirror image to preserve and restoration methods and device.The method comprises the following steps: be storage device by driver by the reserved address spatial abstraction of nonvolatile memory;By formatting command, described storage device is formatted as exchange partition;By amendment carry configuration file so that described exchange partition automatic carry when computer starting;Start configuration file by amendment and described exchange partition is set to system image restorer, to be preserved and recovery operation system image by described exchange partition.The technical scheme that the application embodiment of the present invention is provided, can ensure that the storage device being all based on nonvolatile memory that operating system mirror image uses when preserving and recover, data can be retained by nonvolatile memory for a long time, avoid losing data during system power failure, furthermore, it is possible to improve the speed that operating system mirror image preserves and recovers.

Description

A kind of operating system mirror image preserves and restoration methods and device

Technical field

The present invention relates to field of computer technology, particularly relate to a kind of operating system mirror image and preserve and restoration methods and dress Put.

Background technology

In a computer, in time operating system mirror image is preserved, in order to recovery operation system image when needed.

Storage in computer at present mainly has Installed System Memory and outside storage two class storage.

Common Installed System Memory is DRAM (Dynamic Random Access Memory, dynamic RAM), DRAM is the shortest for the holding time of data, and in order to preserve data, DRAM uses capacitance storage mode, at set intervals will Refreshing a memory element, if certain memory element is not refreshed, the data wherein stored will be lost, and computer Shutdown also results in loss of data, so, operating system mirror image cannot preserve in DRAM.

Outside storage predominantly mechanical disk, solid state hard disc, distributed storage device etc..Mostly operating system mirror image is at present It is stored in disk, but owing to being limited by physical characteristic, the recovery time of operating system mirror image based on disk compares Long.

Summary of the invention

For solving above-mentioned technical problem, the present invention provides a kind of operating system mirror image to preserve and restoration methods and device.

A kind of operating system mirror image preserves and restoration methods, including:

It is storage device by driver by the reserved address spatial abstraction of nonvolatile memory;

By formatting command, described storage device is formatted as exchange partition;

By amendment carry configuration file so that described exchange partition automatic carry when computer starting;

Start configuration file by amendment and described exchange partition is set to system image restorer, with by described friendship Change subregion to preserve and recovery operation system image.

In a kind of detailed description of the invention of the present invention, described by driver, the reserved address of nonvolatile memory is empty Between abstract for storage device, including:

For the reserved address space of described nonvolatile memory, for described reserved address space application device number, and for Described reserved address space creates independent request queue, with by the process function of described request queue to described reserved address Space is read or write corresponding data;

Initialize the data structure of described reserved address space and register in systems according to the device number of application.

In a kind of detailed description of the invention of the present invention, determine the described reserved of described nonvolatile memory by following steps Address space:

Determining the size of common memory in described system, described common memory is except described nonvolatile memory in described system Outer internal memory;

According to the size of described common memory, determine the memory size to be applied for for described nonvolatile memory;

The address space of memory size described in described nonvolatile memory is defined as reserved address space.

In a kind of detailed description of the invention of the present invention, also include:

When reaching the dormancy trigger condition of described system, operating system mirror image is saved in described exchange partition, inspection Measure after preservation completes, trigger described system power failure.

In a kind of detailed description of the invention of the present invention, also include:

After described system re-powers, by the described operating system image recovery in described exchange partition to described system Common memory in.

A kind of operating system mirror image preserves and recovery device, including:

Abstract module, for being storage device by driver by the reserved address spatial abstraction of nonvolatile memory;

Formatting module, for being formatted as exchange partition by formatting command by described storage device;

Carry configuration modification module, for by revising carry configuration file so that described exchange partition is at computer starting Shi Zidong carry;

Start configuration modification module, for starting configuration file by amendment, described exchange partition is set to system image Restorer, to preserve and recovery operation system image by described exchange partition.

In a kind of detailed description of the invention of the present invention, described abstract module, specifically for:

For the reserved address space of described nonvolatile memory, for described reserved address space application device number, and for Described reserved address space creates independent request queue, with by the process function of described request queue to described reserved address Space is read or write corresponding data;

Initialize the data structure of described reserved address space and register in systems according to the device number of application.

In a kind of detailed description of the invention of the present invention, described device also includes that reserved address space determines module, is used for The described reserved address space of described nonvolatile memory is determined by following steps:

Determining the size of common memory in described system, described common memory is except described nonvolatile memory in described system Outer internal memory;

According to the size of described common memory, determine the memory size to be applied for for described nonvolatile memory;

The address space of memory size described in described nonvolatile memory is defined as reserved address space.

In a kind of detailed description of the invention of the present invention, also include that operating system mirror image preserves module, be used for:

When reaching the dormancy trigger condition of described system, operating system mirror image is saved in described exchange partition, inspection Measure after preservation completes, trigger described system power failure.

In a kind of detailed description of the invention of the present invention, also include operating system image recovery module, be used for:

After described system re-powers, by the described operating system image recovery in described exchange partition to described system Common memory in.

The method that the application embodiment of the present invention is provided, is taken out the reserved address space of nonvolatile memory by driver As for storage device, this storage device being formatted as exchange partition, this exchange partition is made to exist by amendment carry configuration file Automatic carry during computer starting, starts configuration file by amendment and this exchange partition is set to system image restorer, In this manner it is ensured that the storage device being all based on nonvolatile memory that operating system mirror image uses when preserving and recover, non- Data can be retained by volatile memory for a long time, it is to avoid during system power failure, lose data, furthermore, it is possible to improve operating system The speed that mirror image preserves and recovers.

Accompanying drawing explanation

For the clearer explanation embodiment of the present invention or the technical scheme of prior art, below will be to embodiment or existing In technology description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root Other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is that in the embodiment of the present invention, operating system mirror image preserves and a kind of implementing procedure figure of restoration methods;

Fig. 2 is that in the embodiment of the present invention, operating system mirror image preserves and the another kind of implementing procedure figure of restoration methods;

Fig. 3 is that in the embodiment of the present invention, a kind of operating system mirror image preserves and the structural representation of recovery device.

Detailed description of the invention

In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and detailed description of the invention The present invention is described in further detail.Obviously, described embodiment be only 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 are not making creative work premise Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.

Shown in Figure 1, a kind of operating system mirror image provided by the embodiment of the present invention preserves and the reality of restoration methods Executing flow chart, the method may comprise steps of:

S110: be storage device by the reserved address spatial abstraction of nonvolatile memory by driver.

In embodiments of the present invention, having two classes in computer system, a class is common memory, as dynamic random stores Device DRAM, a class is nonvolatile memory.

The distinguishing feature of nonvolatile memory it is possible to typically preserve complete interior poke system is fully powered-off when According to, its access speed is faster than outside storage a lot.

In actual applications, can be in operating system aspect by the one of the range of physical addresses of the nonvolatile memory in system Sector address space is as reserved address space, it is ensured that system, when carrying out Memory Allocation, will not use this reserved address space.

In a kind of detailed description of the invention of the present invention, the reserved address of nonvolatile memory can be determined by following steps Space:

Step one: determine the size of common memory in system, common memory is in system unless internal memory outside volatile memory;

Step 2: according to the size of common memory, determine the memory size to be applied for for nonvolatile memory;

Step 3: the address space of memory size in nonvolatile memory is defined as reserved address space.

For ease of describing, above three step is combined and illustrates.

In actual applications, total size of nonvolatile memory is more much larger than total size of common memory.Can first determine and be The size of common memory in system, determines according to the size of common memory in system and needs the internal memory of application from nonvolatile memory big Little.Common memory is in system unless internal memory outside volatile memory.The memory size to apply for from nonvolatile memory can be One times of common memory size or twice.Such as, in system, common memory is 8GB, then to apply for from nonvolatile memory Memory size can be 16GB.

Determine for after the memory size that nonvolatile memory is to be applied for, can be by this memory size in nonvolatile memory Address space is defined as reserved address space.System will not use this reserved address space when carrying out Memory Allocation.

The reserved address spatial abstraction of nonvolatile memory can be storage device by driver by kernel.

In a kind of detailed description of the invention of the present invention, step S110 may comprise steps of:

First step: for the reserved address space of nonvolatile memory, for reserved address space application device number, and pin Reserved address space is created independent request queue, being read to reserved address space by the process function of request queue or Person writes corresponding data;

Second step: the data structure of initializing reservation address space the device number according to application are carried out in systems Registration.

For ease of describing, above-mentioned two step is combined and illustrates.

For the reserved address space of nonvolatile memory, kernel can be this reserved address space application by driver Device number.In system, distinct device has different device numbers.At the same time it can also be create independent asking for reserved address space Ask queue, to distinguish with the request queue of other internal memories in system, improve response speed.So, by the place of this request queue Reason function can read to this reserved address space or write corresponding data.

Initialize the data structure of this reserved address space and register in systems according to the device number of application.

S120: storage device is formatted as exchange partition by formatting command.

After the reserved address spatial abstraction of nonvolatile memory is storage device by driver by step S110, permissible By formatting command, this storage device is formatted as exchange partition, i.e. swap subregion.

S130: by amendment carry configuration file so that exchange partition automatic carry when computer starting.

In embodiments of the present invention, exchange partition can be made at computer starting by the carry configuration file of amendment system Shi Zidong carry, so, system can read the data preserved in this exchange partition.

Concrete, can add following code in carry configuration file/etc/fstab file:

/dev/NVM_SWAP swap swap defaults 0 0。

S140: start configuration file by amendment and exchange partition is set to system image restorer.

In embodiments of the present invention, configuration file can be started by amendment and exchange partition is set to system image recovery Equipment, in this manner it is ensured that use storage based on nonvolatile memory to set when the backup of operating system image file and recovery Standby.Before system power failure, operating system image file can be saved in this system image restorer, in system start-up Time, can from this system image restorer read operation system image file.

Concrete, can increase code below in starting configuration file grub.cfg:

Resume=/dev/NVM_SWAP.

In a kind of detailed description of the invention of the present invention, the method can also comprise the following steps:

When reaching the dormancy trigger condition of system, operating system mirror image is saved in exchange partition, preservation detected After completing, trigger system power failure.

In embodiments of the present invention, the sleep command that system itself is integrated can be used, trigger in the dormancy reaching system During condition, by operating system mirror back-up to exchange partition, i.e. in this exchange partition, operating system mirror image is preserved.

After detecting that operating system mirror image has preserved, system power failure can be triggered.

In a kind of detailed description of the invention of the present invention, the method can also comprise the following steps:

After system re-powers, by the operating system image recovery in exchange partition to the common memory of system.

In embodiments of the present invention, after system re-powers, can be by the operating system image recovery in exchange partition To the common memory of system.

Shown in Figure 2, as a example by (SuSE) Linux OS, the operating system mirror image being provided the embodiment of the present invention is protected Deposit and illustrate with restoration methods.

Reserved address space storage in nonvolatile memory has operating system mirror image.At operating system mirror image to be preserved Time, by creation of operating system mirror image preparation, creation of operating system mirror image, operating system mirror image can be write based on non- In the storage device of volatile memory.When wanting recovery operation system image, read from this storage device based on nonvolatile memory Take corresponding data, it is thus achieved that operating system mirror image, by operating system image recovery to common memory.

The method that the application embodiment of the present invention is provided, is taken out the reserved address space of nonvolatile memory by driver As for storage device, this storage device being formatted as exchange partition, this exchange partition is made to exist by amendment carry configuration file Automatic carry during computer starting, starts configuration file by amendment and this exchange partition is set to system image restorer, In this manner it is ensured that the storage device being all based on nonvolatile memory that operating system mirror image uses when preserving and recover, non- Data can be retained by volatile memory for a long time, it is to avoid during system power failure, lose data, furthermore, it is possible to improve operating system The speed that mirror image preserves and recovers.

Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of operating system mirror image and preserves and recover Device, operations described below system image preserves and recovery device preserves and recovery side with operations described above system image Method can be mutually to should refer to.

Shown in Figure 3, this device can include with lower module:

Abstract module 310, for being storage device by driver by the reserved address spatial abstraction of nonvolatile memory;

Formatting module 320, for being formatted as exchange partition by formatting command by storage device;

Carry configuration modification module 330, for by revising carry configuration file so that exchange partition is at computer starting Shi Zidong carry;

Start configuration modification module 340, for starting configuration file by amendment, exchange partition is set to system image Restorer, to preserve and recovery operation system image by exchange partition.

The device that the application embodiment of the present invention is provided, is taken out the reserved address space of nonvolatile memory by driver As for storage device, this storage device being formatted as exchange partition, this exchange partition is made to exist by amendment carry configuration file Automatic carry during computer starting, starts configuration file by amendment and this exchange partition is set to system image restorer, In this manner it is ensured that the storage device being all based on nonvolatile memory that operating system mirror image uses when preserving and recover, non- Data can be retained by volatile memory for a long time, it is to avoid during system power failure, lose data, furthermore, it is possible to improve operating system The speed that mirror image preserves and recovers.

In a kind of detailed description of the invention of the present invention, abstract module 310, specifically for:

For the reserved address space of nonvolatile memory, for reserved address space application device number, and for reserved address Space creates independent request queue, with corresponding to the reading of reserved address space or write by the process function of request queue Data;

The data structure of initializing reservation address space the device number according to application are registered in systems.

In a kind of detailed description of the invention of the present invention, this device also includes that reserved address space determines module, is used for leading to Cross following steps and determine the reserved address space of nonvolatile memory:

Determining the size of common memory in system, common memory is in system unless internal memory outside volatile memory;

According to the size of common memory, determine the memory size to be applied for for nonvolatile memory;

The address space of memory size in nonvolatile memory is defined as reserved address space.

In a kind of detailed description of the invention of the present invention, also include that operating system mirror image preserves module, be used for:

When reaching the dormancy trigger condition of system, operating system mirror image is saved in exchange partition, preservation detected After completing, trigger system power failure.

In a kind of detailed description of the invention of the present invention, also include operating system image recovery module, be used for:

After system re-powers, by the operating system image recovery in exchange partition to the common memory of system.

In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, between each embodiment, same or similar part sees mutually.For filling disclosed in embodiment For putting, owing to it corresponds to the method disclosed in Example, so describe is fairly simple, relevant part sees method part Illustrate.

Professional further appreciates that, in conjunction with the unit of each example that the embodiments described herein describes And algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and The interchangeability of software, the most generally describes composition and the step of each example according to function.These Function performs with hardware or software mode actually, depends on application-specific and the design constraint of technical scheme.Specialty Technical staff specifically should can be used for using different methods to realize described function to each, but this realization should not Think beyond the scope of this invention.

The method described in conjunction with the embodiments described herein or the step of algorithm can direct hardware, processor be held The software module of row, or the combination of the two implements.Software module can be placed in random access memory (RAM), internal memory, read-only deposit Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology In any other form of storage medium well known in field.

Above a kind of operating system mirror image provided by the present invention is preserved and restoration methods and device have carried out detailed Jie Continue.Principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only It is the method and core concept thereof being adapted to assist in and understanding the present invention.It should be pointed out that, for those skilled in the art For, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and repair Decorations also fall in the protection domain of the claims in the present invention.

Claims (10)

1. an operating system mirror image preserves and restoration methods, it is characterised in that including:
It is storage device by driver by the reserved address spatial abstraction of nonvolatile memory;
By formatting command, described storage device is formatted as exchange partition;
By amendment carry configuration file so that described exchange partition automatic carry when computer starting;
Start configuration file by amendment and described exchange partition is set to system image restorer, to be divided by described exchange District preserves and recovery operation system image.
Method the most according to claim 1, it is characterised in that described by driver by the backup land of nonvolatile memory Location spatial abstraction is storage device, including:
For the reserved address space of described nonvolatile memory, for described reserved address space application device number, and for described Reserved address space creates independent request queue, with by the process function of described request queue to described reserved address space Read or write corresponding data;
Initialize the data structure of described reserved address space and register in systems according to the device number of application.
Method the most according to claim 1 and 2, it is characterised in that determine described nonvolatile memory by following steps Described reserved address space:
Determine the size of common memory in described system, described common memory be in described system in addition to described nonvolatile memory Internal memory;
According to the size of described common memory, determine the memory size to be applied for for described nonvolatile memory;
The address space of memory size described in described nonvolatile memory is defined as reserved address space.
Method the most according to claim 3, it is characterised in that also include:
When reaching the dormancy trigger condition of described system, operating system mirror image is saved in described exchange partition, detects After preservation completes, trigger described system power failure.
Method the most according to claim 4, it is characterised in that also include:
After described system re-powers, by general to described system of the described operating system image recovery in described exchange partition In logical internal memory.
6. an operating system mirror image preserves and recovery device, it is characterised in that including:
Abstract module, for being storage device by driver by the reserved address spatial abstraction of nonvolatile memory;
Formatting module, for being formatted as exchange partition by formatting command by described storage device;
Carry configuration modification module, for by amendment carry configuration file so that described exchange partition when computer starting from Dynamic carry;
Start configuration modification module, for starting configuration file by amendment, described exchange partition is set to system image recovery Equipment, to preserve and recovery operation system image by described exchange partition.
Device the most according to claim 6, it is characterised in that described abstract module, specifically for:
For the reserved address space of described nonvolatile memory, for described reserved address space application device number, and for described Reserved address space creates independent request queue, with by the process function of described request queue to described reserved address space Read or write corresponding data;
Initialize the data structure of described reserved address space and register in systems according to the device number of application.
8. according to the device described in claim 6 or 7, it is characterised in that described device also includes that reserved address space determines mould Block, for being determined the described reserved address space of described nonvolatile memory by following steps:
Determine the size of common memory in described system, described common memory be in described system in addition to described nonvolatile memory Internal memory;
According to the size of described common memory, determine the memory size to be applied for for described nonvolatile memory;
The address space of memory size described in described nonvolatile memory is defined as reserved address space.
Device the most according to claim 8, it is characterised in that also include that operating system mirror image preserves module, be used for:
When reaching the dormancy trigger condition of described system, operating system mirror image is saved in described exchange partition, detects After preservation completes, trigger described system power failure.
Device the most according to claim 9, it is characterised in that also include operating system image recovery module, be used for:
After described system re-powers, by general to described system of the described operating system image recovery in described exchange partition In logical internal memory.
CN201610658753.0A 2016-08-11 2016-08-11 A kind of operating system mirror image preserves and restoration methods and device CN106294019A (en)

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