CN109684122A - A method of carving the section table module of the multiple western number hard disk of failure - Google Patents
A method of carving the section table module of the multiple western number hard disk of failure Download PDFInfo
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- CN109684122A CN109684122A CN201811589578.XA CN201811589578A CN109684122A CN 109684122 A CN109684122 A CN 109684122A CN 201811589578 A CN201811589578 A CN 201811589578A CN 109684122 A CN109684122 A CN 109684122A
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0727—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a storage system, e.g. in a DASD or network based storage system
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0766—Error or fault reporting or storing
-
- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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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
- G06F11/1417—Boot up procedures
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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
- G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
Abstract
The invention discloses a kind of methods of section table module for carving the multiple western number hard disk of failure, it is characterised in that the following steps are included: S100: the western number hard disk of connecting fault simultaneously waits the western number hard disk of failure ready and recognizes disk；S200: judge whether that the section table module of the western number hard disk of multiple failure can be carved；S300: the recombination file of creation section table module and the head for generating recombination file；S400: the data volume of recombination file is generated；S500: verifying section table module again, and for the 0x0C byte that test value is inserted recombination file into 0x0F byte, the carving for completing section table module is multiple.
Description
Technical field
The invention belongs to field of information security technology, are related to a kind of side of section table module for carving the multiple western number hard disk of failure
Method.
Background technique
In information security field, as the continuous expansion of hard-disk capacity and the user group of hard disk are continuously increased, cause hard
The bad example of adjustment debit is more and more, wherein also include the case where that 0 magnetic head of hard disk and the section table module of 1 magnetic head all damage, and
Section table module is the important module of hard disk, and the data that the damage of section table module will lead to hard disk can not normally be read, this
In the case that the section table module of 0 magnetic head and 1 magnetic head that invention is just directed to western number hard disk is damaged completely, pass through the starting day of hard disk
Will module carves complete section table module of appearing again.This can not only repair the section table of 0 magnetic head and 1 magnetic head due to hard disk
Data caused by module damage can not be read, and also improved data and reverted to power.
Summary of the invention
Present invention problem in view of the deficiencies of the prior art proposes a kind of section table module for carving the multiple western number hard disk of failure
Method, the method by repairing starting log module, to achieve the purpose that carve multiple section table module, comprising the following steps:
S100: connecting the western number hard disk of the failure and waits the western number hard disk of the failure ready and recognizes disk；
S200: judge whether that the section table module of the western number hard disk of the failure can be carved again；
S300: the recombination file of creation section table module and the head for generating the recombination file；
S400: the data volume of the recombination file is generated；
S500: verifying the section table module again, and test value is inserted the 0x0C byte for recombinating file to 0x0F
In byte, the carving for completing the section table module is multiple.
Preferably, the step S200 the following steps are included:
S201: the starting log module of the western number hard disk of the failure is read；
S202: judging whether the byte content after the address 0x100 of the starting log module is complete zero, if so,
Terminate process, otherwise, executes step S300.
Preferably, specific step is as follows by the step S300:
It obtains the western number hard disk with the western number hard disk same model of the failure and reads 0x00 byte in its section table module
To the content of 0x30 byte, the 0x00 byte of the recombination file is written into 0x30 byte in read content.
Preferably, step S400 the following steps are included:
S401: it obtains the western number hard disk with the western number hard disk same model of the failure and reads its starting log module and section
Position table module；
S402: whether the byte content after the address 0x100 of starting log module described in judgment step S401 is complete zero,
If so, executing step S401, otherwise, step S403 is executed；
S403: the value and byte length of each segment data body in section table module described in read step S401, and finding step
The value of each segment data body and corresponding first address in starting log module described in S401；
S404: generating the first segment data volume of the recombination file, specifically,
It is described recombination file 0x30 byte filling first segment data volume byte length divided by 4 quotient；
The 0x31 byte of the recombination file is to 0x37 byte zero filling；
The 0x38 byte of the recombination file is to 0xCF byte: looking into the starting log module of the western number hard disk of the failure
Keyword 0x00003000 is looked for, keyword 0x00003000 will be found and subsequent data insert the 0x38 of the recombination file
Byte is into 0xCF byte；
S405: generating the second segment data volume of the recombination file, specifically,
It is one group as initial address, with nybble using 0xE000 in the starting log module of the western number hard disk of failure, to
Searching first afterwards is not 0x00000000 byte content, until the last one is not the byte content of 0x00000000,
If described first be not 0x00000000 byte content and it is described the last one be not 0x00000000 byte content it
Between data byte length be equal to the first segment data volume byte length, then the data between the byte content are filled out
Enter the 0x2BC byte of the recombination file into 0x353 byte, and records the data between the byte content in the failure
First address in the starting log module of western number hard disk；
S406: each head of the data volume in the recombination file after determining third segment data body and third segment data body
Address, specifically,
According to the first address of second segment data volume in the starting log module searched in step S403, step is subtracted
Difference is denoted as address difference, the starting log mould searched in each read step S403 by the first address that S405 is recorded
The first address of each data volume in block, subtracts the address difference, as head of each segment data body in the starting log module
Address；
S407: generating the third segment data body of the recombination file, specifically,
S4071: the byte length of the data of third segment data body is obtained: according to third segment data acquired in step S403
The byte length of body, the byte length of the data as third segment data body；
S4072: the first address of the data of third segment data body is obtained: according to step S406 second segment data volume obtained
First address in the recombination file, the first address of the data as third segment data body；
S4073: by the exchange of the content of 0x00 byte to 0x07 byte and 0x08 byte to 0x0F byte；
S4074:, will according to the first address of the data of the byte length of the data of third segment data body and third segment data body
The recombination file is written in the data of third segment data body；
S408: the 4th segment data body and the data volume after the 4th segment data body for generating the recombination file specifically include
Following steps:
S4081: the byte length of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step
The byte length of each segment data body acquired in rapid S403, the byte length of the data as each segment data body；
S4082: the first address of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step
First address of the S406 each segment data body obtained in the recombination file, the first address of the data as each segment data body；
S4083: according to the first address of the data of the byte length of step S4081 and step S4082, by each segment data body
The recombination file is written in data；
S409: ensuring that the integral multiple that the byte length of the recombination file is 512, insufficient section are supplied in tail portion zero filling,
The byte length of the recombination file is inserted divided by 512 quotient in 0x0A the and 0x0B byte of the recombination file.
The beneficial effects of the present invention are:
1, it solves the problems, such as western number hard disk while damaging 0 and 1 section table module to which data can not be restored；
2, it in the case where western number hard disk damages 0 and 1 simultaneously, is carved again by the starting log module of hard disk
Multiple section table module is easy to operate to achieve the purpose that restore data, without any hardware for replacing the western number hard disk of failure.
Detailed description of the invention
Fig. 1 is the general flow chart of method provided by the present invention；
Fig. 2 is the specific flow chart for the data volume that the present invention generates recombination file；
Fig. 3 is the data structure diagram of section table module in one embodiment of the invention.
Specific embodiment
The present embodiment is related to following term:
Starting log module, also referred to as 2E module；
Section table module, also referred to as 03 module.
The present invention is further elaborated with reference to the accompanying drawings and examples.
Fig. 1 shows the general flow chart of method provided by the present invention.
As shown in Figure 1, the method for the present invention includes the following steps:
S100: the western number hard disk of connecting fault simultaneously waits the western number hard disk of the failure ready and recognizes disk；
S200: judging whether that the section table module of the western number hard disk of multiple failure can be carved, step S200 the following steps are included:
S201: the starting log module of the western number hard disk of read failure；
S202: judging whether the byte content after the address 0x100 of starting log module is complete zero, if so, terminating
Otherwise process executes step S300.
S300: the recombination file of creation section table module and the head for generating recombination file, the specific steps of step S300
It is as follows:
It obtains and the western number hard disk of the western number hard disk same model of failure and reads in its section table module 0x00 byte extremely
The 0x00 byte of recombination file is written into 0x30 byte in read content by the content of 0x30 byte.
S400: the data volume of recombination file is generated, step S400 includes following steps as shown in Figure 2:
S401: it obtains the western number hard disk with the western number hard disk same model of failure and reads its starting log module and section table
Module；
S402: whether the byte content after the address 0x100 of judgment step S401 starting log module is complete zero, if
It is to execute step S401, otherwise, executes step S403；
S403: the value and byte length of each segment data body in read step S401 section table module, and finding step S401
The value of each segment data body and corresponding first address in starting log module；
S404: generating the first segment data volume of recombination file, specifically,
Recombinate file 0x30 byte filling first segment data volume byte length divided by 4 quotient；
The 0x31 byte of file is recombinated to 0x37 byte zero filling；
The 0x38 byte of file is recombinated to 0xCF byte: as shown in the content of rectangle frame in Fig. 3, in the western number hard disk of failure
Search key 0x00003000 in starting log module will find keyword 0x00003000 and subsequent data filling weight
The 0x38 byte of group file is into 0xCF byte；
S405: generating the second segment data volume of recombination file, specifically,
In the starting log module of the western number hard disk of failure, it is one group as initial address, with nybble using 0xE000, looks into backward
Looking for first is not 0x00000000 byte content, until the last one is not the byte content of 0x00000000, if
First be not 0x00000000 byte content and the last one be not the word of the data between the byte content of 0x00000000
The byte length that length is equal to first segment data volume is saved, then by the 0x2BC word of the data filling recombination file between byte content
Section records first ground of the data between byte content in the starting log module of the western number hard disk of failure into 0x353 byte
Location；
S406: each first ground of the data volume in recombination file after determining third segment data body and third segment data body
Location, specifically,
According to the first address of second segment data volume in the starting log module searched in step S403, step S405 is subtracted
Difference is denoted as address difference by the first address recorded, each in the starting log module searched in each read step S403
The first address of data volume, subtracts address difference, as first address of each segment data body in starting log module；
S407: generating the third segment data body of recombination file, specifically,
S4071: the byte length of the data of third segment data body is obtained: according to third segment data acquired in step S403
The byte length of body, the byte length of the data as third segment data body；
S4072: the first address of the data of third segment data body is obtained: according to step S406 second segment data volume obtained
First address in recombination file, the first address of the data as third segment data body；
S4073: by the exchange of the content of 0x00 byte to 0x07 byte and 0x08 byte to 0x0F byte；
S4074:, will according to the first address of the data of the byte length of the data of third segment data body and third segment data body
The data write-in recombination file of third segment data body；
S408: the 4th segment data body and the data volume after the 4th segment data body for generating recombination file specifically include following
Step:
S4081: the byte length of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step
The byte length of each segment data body acquired in rapid S403, the byte length of the data as each segment data body；
S4082: the first address of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step
First address of the S406 each segment data body obtained in recombination file, the first address of the data as each segment data body；
S4083: according to the first address of the data of the byte length of step S4081 and step S4082, by each segment data body
Data write-in recombination file；
S409: ensuring to recombinate the integral multiple that the byte length of file is 512, and insufficient section is supplied in tail portion zero filling, will be weighed
The byte length of group file is inserted in 0x0A the and 0x0B byte of recombination file divided by 512 quotient.
S500: verifying section table module again, and test value is inserted the 0x0C byte for recombinating file into 0x0F byte, complete
It is multiple at the carving of section table module.
The method provided through the invention solves and there is no a kind of section table for carving the multiple western number hard disk of failure in the prior art
The technical issues of method of module.
It should be understood that the present invention is not limited to above-mentioned citings, it for those of ordinary skills, can basis
Above description is improved or converted, and all these modifications and variations all should belong to the protection model of appended claims of the present invention
It encloses.
Claims (4)
1. a kind of method for the section table module for carving the multiple western number hard disk of failure, it is characterised in that the following steps are included:
S100: connecting the western number hard disk of the failure and waits the western number hard disk of the failure ready and recognizes disk；
S200: judge whether that the section table module of the western number hard disk of the failure can be carved again；
S300: the recombination file of creation section table module and the head for generating the recombination file；
S400: the data volume of the recombination file is generated；
S500: verifying the section table module again, and test value is inserted the 0x0C byte for recombinating file to 0x0F byte
In, the carving for completing the section table module is multiple.
2. a kind of method of section table module for carving multiple western number hard disk according to claim 1, which is characterized in that the step
Rapid S200 the following steps are included:
S201: the starting log module of the western number hard disk of the failure is read；
S202: judging whether the byte content after the address 0x100 of the starting log module is complete zero, if so, terminating
Otherwise process executes step S300.
3. a kind of method of section table module for carving multiple western number hard disk according to claim 2, which is characterized in that step
Specific step is as follows by S300:
It obtains and the western number hard disk of the western number hard disk same model of the failure and reads in its section table module 0x00 byte extremely
The 0x00 byte of the recombination file is written into 0x30 byte in read content by the content of 0x30 byte.
4. a kind of method of section table module for carving multiple western number hard disk according to claim 3, which is characterized in that step
S400 the following steps are included:
S401: it obtains the western number hard disk with the western number hard disk same model of the failure and reads its starting log module and section table
Module；
S402: whether the byte content after the address 0x100 of starting log module described in judgment step S401 is complete zero, if
It is to execute step S401, otherwise, executes step S403；
S403: the value and byte length of each segment data body in section table module described in read step S401, and finding step S401
The value of each segment data body and corresponding first address in the starting log module；
S404: generating the first segment data volume of the recombination file, specifically,
It is described recombination file 0x30 byte filling first segment data volume byte length divided by 4 quotient；
The 0x31 byte of the recombination file is to 0x37 byte zero filling；
The 0x38 byte of the recombination file is to 0xCF byte: searching and closes in the starting log module of the western number hard disk of the failure
Key word 0x00003000, will find keyword 0x00003000 and subsequent data insert the 0x38 byte of the recombination file
Into 0xCF byte；
S405: generating the second segment data volume of the recombination file, specifically,
In the starting log module of the western number hard disk of failure, it is one group as initial address, with nybble using 0xE000, looks into backward
Looking for first is not 0x00000000 byte content, until the last one is not the byte content of 0x00000000, if
Described first be not 0x00000000 byte content and it is described the last one be not between the byte content of 0x00000000
The byte length of data is equal to the byte length of the first segment data volume, then the data between the byte content is inserted institute
The 0x2BC byte of recombination file is stated into 0x353 byte, and records the data between the byte content in the western number of the failure
First address in the starting log module of hard disk；
S406: each first ground of the data volume in the recombination file after determining third segment data body and third segment data body
Location, specifically,
According to the first address of second segment data volume in the starting log module searched in step S403, step S405 is subtracted
Difference is denoted as address difference, in the starting log module searched in each read step S403 by the first address recorded
The first address of each data volume subtracts the address difference, as first address of each segment data body in the starting log module；
S407: generating the third segment data body of the recombination file, specifically,
S4071: the byte length of the data of third segment data body is obtained: according to third segment data body acquired in step S403
Byte length, the byte length of the data as third segment data body；
S4072: the first address of the data of third segment data body is obtained: according to step S406 second segment data volume obtained in institute
State the first address in recombination file, the first address of the data as third segment data body；
S4073: by the exchange of the content of 0x00 byte to 0x07 byte and 0x08 byte to 0x0F byte；
S4074: according to the first address of the data of the byte length of the data of third segment data body and third segment data body, by third
The recombination file is written in the data of segment data body；
S408: the 4th segment data body and the data volume after the 4th segment data body for generating the recombination file specifically include following
Step:
S4081: the byte length of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step
The byte length of each segment data body acquired in S403, the byte length of the data as each segment data body；
S4082: the first address of the data of the data volume after obtaining the 4th segment data body and the 4th segment data body: according to step S406
First address of each segment data body obtained in the recombination file, the first address of the data as each segment data body；
S4083: according to the first address of the data of the byte length of step S4081 and step S4082, by the data of each segment data body
The recombination file is written；
S409: ensure the integral multiple that the byte length of the recombination file is 512, insufficient section is supplied in tail portion zero filling, by institute
The byte length for stating recombination file is inserted divided by 512 quotient in 0x0A the and 0x0B byte of the recombination file.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811589578.XA CN109684122B (en) | 2018-12-25 | 2018-12-25 | Method for carving and recovering segment bit table module of failed Western digital hard disk |
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| CN201811589578.XA CN109684122B (en) | 2018-12-25 | 2018-12-25 | Method for carving and recovering segment bit table module of failed Western digital hard disk |
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