CN106293982A - A kind of repair the method that dish do not recognized by western number hard disk - Google Patents
A kind of repair the method that dish do not recognized by western number hard disk Download PDFInfo
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- CN106293982A CN106293982A CN201610626236.5A CN201610626236A CN106293982A CN 106293982 A CN106293982 A CN 106293982A CN 201610626236 A CN201610626236 A CN 201610626236A CN 106293982 A CN106293982 A CN 106293982A
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- module
- hard disk
- byte
- rom
- uba
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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
- G06F11/0793—Remedial or corrective actions
Abstract
The invention discloses and a kind of repair the method that dish do not recognized by western number hard disk, specifically comprise the following steps that S1: read the rom chip data volume on hard disk pcb board；S2: resolve rom chip data volume and find 0B module and extract its data volume；S3: resolve OB module, obtains module map UBA address, firmware district；S4: by UBA address location module deposit position.Beneficial effects of the present invention is as follows: can recover hard disc data in the case of not recognizing dish；It is accurately positioned firmware map position；Quickly position other firmware place physical locations by calculating, recover hard disc data success rate high, reduce the loss brought because of hard disk corruptions.
Description
Technical field
The present invention relates to field of information security technology, repair, particularly to a kind of, the method that dish do not recognized by western number hard disk.
Background technology
Western number hard disk is to use one of brand producer most, widest hard disk on the market.Come from the feedback information in market
Saying, the up-to-date hard disk that Xi Shuo producer produced after 2012, in use for some time it is possible that do not recognize the fault of dish.
The assembly of the most most of western number hard disk or intact.Cause this situation not recognizing dish general
It is owing to western number hard disk cannot cause by access hard disk firmware；Want quickly to repair, it is necessary to read and accurately read ground, hard disk firmware district
Figure, thus reach quickly to position other firmware module reparations and do not recognize the purpose of dish fault, but currently available technology is at repair process
In can not quick locating module position, cause repairing hard disk overlong time.
Summary of the invention
The present invention is directed to the defect of prior art, it is provided that a kind of repair the method that dish do not recognized by western number hard disk, can be effective
Solve the problem that above-mentioned prior art exists.
A kind of repair the method that dish do not recognized by western number hard disk, specifically comprise the following steps that
S1: read the rom chip data volume on hard disk pcb board；
S2: resolve rom chip data volume and find 0B module and extract its data volume；
S3: resolve OB module, obtains module map UBA address, firmware district；
S4: by UBA address location module deposit position.
As preferably, the detailed step of described S2 is as follows:
S21: the module head feature in retrieval rom chip data volume successively；
S22: after retrieving module head feature, offsets 4 bytes backward in this feature, takes 2 byte ROM module spies
Levy；
S23: judge whether these module No. data are 0B module；If it is S24 is performed, if not with this position being then
Initial execution S21；
S24: 2 byte after acquisition module number, sector number shared by module；
S25: obtain from module head feature until data between next module head feature, fills out 0 after data, directly
To reaching the total size in sector shared by module, form complete 0B module data body.
As preferably, the detailed step of described S3 is as follows:
S31: obtaining the value of OB module head bias 0x06 position, this value represents the inclined of OB module valid data original position
Move address；
S32: being offset to valid data original position later byte is the entry number of ROM module；
S33:ROM module entry number takes a byte backward, for the byte number shared by each entry of ROM module, record strip
Mesh byte number；
S34: entry byte number takes a byte backward, for ROM module COPY number；
S35:COPY number takes 2 bytes backward and represents module No., records 01 module；
S36: module No. 2 bytes backward represent sector number shared by module, record sector number；
S37: sector number shared by module offsets the UBA address that 4 bytes are 01 module place backward.
As preferably, the detailed step of described S4 is as follows:
S41: obtain hard disk RAM information, offsets " 0x24 ", takes 2 byte datas, for the magnetic track sum of this hard disk；
S42: calculate header address allocation table start offset position, firmware district, execution below equation:
Shared by OB module valid data original position+ROM module entry number * entry, byte number=firmware district header address divides
Join table start offset original position；
S43: be offset to firmware district header address allocation table original position and obtain firmware district magnetic head map allocation information table and account for
Use total size；
S44: allocation information table takies total size and scans whole allocation table according to the map, obtains 0 UBA end position；
S45: obtain SPT value, performs formula " the magnetic track sum of SPT=0 head UBA end position/hard disk "；
S46: the UBA address extracting 01 module is converted into 10 systems；
S47: perform formula " sector number more than the value of 10 systems/SPT value=track number A ", obtain track number A and sector number；
S48: obtain 01 mapping module place magnetic track, formula is " track number A-magnetic track sum=track number B "；
S49: calculate magnetic head number, see the value of track number A, if being 0 between 0-255,256 and more than 256 then divided by
256, round numbers, described integer is track number A.
Compared with prior art it is an advantage of the current invention that: hard disc data can be recovered in the case of not recognizing dish；It is accurately positioned
Firmware map position；Quickly position other firmware place physical locations by calculating, recover hard disc data success rate high, subtract
Few loss brought because of hard disk corruptions.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention hard disk chip data 16 system structure chart；
Fig. 2 is the embodiment of the present invention 01 module data 16 system structure chart.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, by the following examples, the present invention is done into
One step describes in detail.
Repair, as it is shown in figure 1, a kind of, the method that dish do not recognized by western number hard disk, specifically comprise the following steps that
S1: read the rom chip data volume on hard disk pcb board, size 256KB.
S2: resolving rom chip data volume and find 0B module and extract its data, its detailed step is as follows:
S21: the module head feature " 0x52 4F 59 4C " in retrieval rom chip data volume successively；
S22: after retrieving module head feature, offsets 4 bytes backward in this feature, then takes 2 byte datas, and these are 2 years old
Byte just represents ROM module feature；
S23: judge whether these module No. data are " 0x0B 00 " (being confirmed whether as 0B module)；If it is perform
S24, if not then performing S21 with this position for initial；
S24: obtain the size of this module, after module No., 2 bytes represent the number of sector shared by module；
S25: from module head feature until the data to next module head feature " 0x52 4F 59 4C " all
For the data zone content of OB module, take the data between two features, after data, fill out 0, until it reaches shared by module, sector is total
Till size, form complete 0B module data body.
S3: resolve OB module, obtains module map UBA address, firmware district, and its detailed step is as follows:
S31: obtaining the value " 0x1E " of OB module head bias 0x06 position, this value represents OB module valid data start bit
The offset address put；
S32: being offset to valid data original position later byte is the entry number of ROM module, is " 0x0A " in this example,
Record this entry number；
S33:ROM module entry number takes a byte backward, for the byte number shared by each entry of ROM module, record strip
Mesh byte number, this example is " 0x12 "；
S34: entry byte number takes a byte backward, for ROM module COPY number, record COPY number " 0x02 "；
S35:COPY number takes 2 bytes backward and represents module No., and logging modle number (01 module), is " 0,x01 00 " in this example；
S36: module No. 2 bytes backward represent sector number shared by module, record sector number, are " 0,x20 00 " in this example；
S37: sector number shared by module offsets the UBA address that 4 bytes are 01 module place backward, is " 0x08EF in this example
02 00”。
S4: be accurately positioned module deposit position by UBA address, its detailed step is as follows:
S41: obtain hard disk RAM information, offsets " 0x24 ", takes 2 byte datas, and the magnetic track for this hard disk is total such as Fig. 2 institute
Show, this example is " 0x0001 "；
S42: calculate header address allocation table start offset position, firmware district, execution below equation:
Shared by OB module valid data original position+ROM module entry number * entry, byte number=firmware district header address divides
Join table start offset original position, this example is 1E+0A*12=0xD2；
S43: be offset to " 0xD2 " (firmware district header address allocation table original position) and obtain the magnetic head map distribution of firmware district
Information table takies total size, is " 0x46 " in this example；
S44: allocation information table takies total size " 0x46 " and scans whole allocation table according to the map, obtains 0 UBA stop bits
Put；
" 0x46 " rear 4 byte representation firmware district magnetic head bitmaps, are " 0x02FF 0F 03 " in this example；
Firmware district magnetic head bitmap later byte is placeholder；
Placeholder offsets the UBA length that 4 byte representations 0 are actually used backward, and this example is " 0xFE FA 02 00 "；
Skew 0 UBA starting position of 4 byte representations backward, this example is " 0,x00 00 00 00 "；
Skew 1 actually used UBA length of 4 byte representations backward, this example is " 0xFE FA 02 00 "；
Skew 0 UBA end position of 4 byte representations backward, this example is " 00 2A 06 00 "；
Skew 1 actually used UBA length of 4 byte representations backward, this example is " 0xFE FA 02 00 "；
Skew 1 UBA end position of 4 byte representations backward, this example is " 0,x00 54 0C 00 "；
S45: obtain SPT value, performs formula " the magnetic track sum of SPT=0 head UBA end position/hard disk ", in this example is
0x62A00/0x100=1578；
S46: the UBA address extracting 01 module is converted into 10 systems；In this example, " 0x08EF 02 00 " is converted to 10 and enters
It is made as 192264
S47: perform formula " sector number more than the value of 10 systems/SPT value=track number A ", obtain track number B and sector number,
This example is 192264/1578=121 mores than 1326；
S48: obtain 01 mapping module place cylinder, formula is " track number A-magnetic track sum=track number B ", and this example is
121-256=-135；
S49: calculate magnetic head number, see the value of track number A, if being 0 between 0-255,256 and more than 256 then divided by
256, round numbers, described integer is track number A.
The CHS deposit position that i.e. can get 01 module after performing above-mentioned steps is: 0,135 negative magnetic tracks, in magnetic track partially
Shifting is 1326 sectors, is gone out the position of other modules of hard disk by 01 module CHS location resolution, reads the mutual write-back of firmware the most readable
Take hard disc data.
Those of ordinary skill in the art it will be appreciated that embodiment described here be to aid in reader understanding this
Bright implementation, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.Ability
The those of ordinary skill in territory can make various its without departing from essence of the present invention according to these technology disclosed by the invention enlightenment
Its various concrete deformation and combination, these deformation and combination are the most within the scope of the present invention.
Claims (4)
1. repair the method that dish do not recognized by western number hard disk for one kind, it is characterised in that specifically comprise the following steps that
S1: read the rom chip data volume on hard disk pcb board；
S2: resolve rom chip data volume and find 0B module and extract its data volume；
S3: resolve OB module, obtains module map UBA address, firmware district；
S4: by UBA address location module deposit position.
The most according to claim 1 a kind of repair the method that dish do not recognized by western number hard disk, it is characterised in that described S2's is detailed
Step is as follows:
S21: the module head feature in retrieval rom chip data volume successively；
S22: after retrieving module head feature, offsets 4 bytes backward in this feature, takes 2 byte ROM module features；
S23: judge whether these module No. data are 0B module；If it is S24 is performed, if not being then initial with this position
Perform S21；
S24: 2 byte after acquisition module number, sector number shared by module；
S25: obtaining from module head feature until the data between next module head feature, filling out 0 after data, until reaching
To the total size in sector shared by module, form complete 0B module data body.
The most according to claim 2 a kind of repair the method that dish do not recognized by western number hard disk, it is characterised in that described S3's is detailed
Step is as follows:
S31: obtain the value of OB module head bias 0x06 position, this value represents the skew ground of OB module valid data original position
Location；
S32: being offset to valid data original position later byte is the entry number of ROM module；
S33:ROM module entry number takes a byte backward, for the byte number shared by each entry of ROM module, records entry word
Joint number；
S34: entry byte number takes a byte backward, for ROM module COPY number；
S35:COPY number takes 2 bytes backward and represents module No., records 01 module；
S36: module No. 2 bytes backward represent sector number shared by module, record sector number；
S37: sector number shared by module offsets the UBA address that 4 bytes are 01 module place backward.
The most according to claim 3 a kind of repair the method that dish do not recognized by western number hard disk, it is characterised in that described S4's is detailed
Step is as follows:
S41: obtain hard disk RAM information, offsets " 0x24 ", takes 2 byte datas, for the magnetic track sum of this hard disk；
S42: calculate header address allocation table start offset position, firmware district, execution below equation:
Byte number=firmware district header address allocation table shared by OB module valid data original position+ROM module entry number * entry
Start offset original position；
S43: be offset to firmware district header address allocation table original position and obtain firmware district magnetic head map allocation information table and take always
Size；
S44: allocation information table takies total size and scans whole allocation table according to the map, obtains 0 UBA end position；
S45: obtain SPT value, performs formula " the magnetic track sum of SPT=0 head UBA end position/hard disk "；
S46: the UBA address extracting 01 module is converted into 10 systems；
S47: perform formula " sector number more than the value of 10 systems/SPT value=track number A ", obtain track number A and sector number；
S48: obtain 01 mapping module place magnetic track, formula is " track number A-magnetic track sum=track number B "；
S49: calculating magnetic head number, see the value of track number A, if being 0 between 0-255,256 and more than 256, then divided by 256, take
Integer, described integer is track number A.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626236.5A CN106293982B (en) | 2016-08-02 | 2016-08-02 | A method of it repairing western number hard disk and does not recognize disk |
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| CN201610626236.5A CN106293982B (en) | 2016-08-02 | 2016-08-02 | A method of it repairing western number hard disk and does not recognize disk |
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| CN106293982A true CN106293982A (en) | 2017-01-04 |
| CN106293982B CN106293982B (en) | 2019-08-06 |
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| CN201610626236.5A Active CN106293982B (en) | 2016-08-02 | 2016-08-02 | A method of it repairing western number hard disk and does not recognize disk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656747A (en) * | 2018-11-30 | 2019-04-19 | 四川巧夺天工信息安全智能设备有限公司 | A method of carving the data adaptation module of multiple western number hard disk |
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| CN105161138A (en) * | 2015-09-30 | 2015-12-16 | 四川效率源信息安全技术股份有限公司 | Repair method for situation of incapability of accessing to data block caused by error of Seagate hard disk firmware manager |
| CN105260130A (en) * | 2015-09-18 | 2016-01-20 | 四川效率源信息安全技术股份有限公司 | Read-write method for Seagate hard disk system file |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7461197B2 (en) * | 2005-12-19 | 2008-12-02 | Broadcom Corporation | Disk formatter and methods for use therewith |
| CN104778106A (en) * | 2015-04-30 | 2015-07-15 | 四川效率源信息安全技术有限责任公司 | Restoration method of Western Digital hard disk firmware zone scratch |
| CN105260130A (en) * | 2015-09-18 | 2016-01-20 | 四川效率源信息安全技术股份有限公司 | Read-write method for Seagate hard disk system file |
| CN105161138A (en) * | 2015-09-30 | 2015-12-16 | 四川效率源信息安全技术股份有限公司 | Repair method for situation of incapability of accessing to data block caused by error of Seagate hard disk firmware manager |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656747A (en) * | 2018-11-30 | 2019-04-19 | 四川巧夺天工信息安全智能设备有限公司 | A method of carving the data adaptation module of multiple western number hard disk |
| CN109656747B (en) * | 2018-11-30 | 2022-03-04 | 四川巧夺天工信息安全智能设备有限公司 | Method for carving data adaptation module of composite Western digital hard disk |
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| CN106293982B (en) | 2019-08-06 |
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