CN104821176A - Method for repairing faults of magnetic read of Seagate hard disk - Google Patents
Method for repairing faults of magnetic read of Seagate hard disk Download PDFInfo
- Publication number
- CN104821176A CN104821176A CN201510202388.8A CN201510202388A CN104821176A CN 104821176 A CN104821176 A CN 104821176A CN 201510202388 A CN201510202388 A CN 201510202388A CN 104821176 A CN104821176 A CN 104821176A
- Authority
- CN
- China
- Prior art keywords
- disk
- data
- sap
- matching
- magnetic head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
- G11B20/1889—Methods for assignment of alternate areas for defective areas with discs
Abstract
The invention discloses a method for repairing faults of the magnetic read of a Seagate hard disk. The method includes the following steps that: S1, selecting hard disks from normal hard disks as matching disks, wherein the model number, the first three numbers of the series number and firmware version number of each selected hard disk are consistent with those of a fault disk: S2, searching magnetic read deviation rates of the matching disks and the fault disk, searching a matching disk of which the magnetic read deviation rate is most approximate to that of the fault disk; and S3, recombining and replacing magnetic read parameters in the fault disk (ROM). With the method of the invention adopted, the problem of incapability of realizing adaptation after the magnetic read of a hard disk is replaced can be solved; through two times of screening, the matching disk which is most approximate to the fault disk can be found fast and accurately, and data incompatibility of the matching disk in an adaptation process can be prevented; and SAP data can be found and re-combined, and the success rate of hard disk repair is high, and repair time can be reduced.
Description
Technical field
The present invention relates to field of information security technology, particularly a kind of method of repairing Seagate hard disc magnetic head fault.
Background technology
Hard disk carrys out store data by the read-write of magnetic head, due to hard disk impact that is long and not specific factor service time, the magnetic head of hard disk all can be made to damage as shaken hard disk in hard disk operational process, cause hard disk ATA state always long busy or downright bad, at this moment hard disk is just had no idea the data that read in hard disk, and appearance can tracking, strike dish, abnormal sound, even the phenomenon such as cannot to run up.
At present, the method for repairing Seagate hard disc magnetic head fault mainly adopts the mode changing magnetic head, but easily occurs magnetic head and the unmatched situation of disk body after changing magnetic head, and at this moment hard disk cannot normally work.
Summary of the invention
The present invention is directed to the defect of prior art, propose a kind of method of repairing Seagate hard disc magnetic head fault, it is characterized in that comprising the following steps:
S1: select dish all consistent with No. Model, faulty disk, SN front three, firmware version number in normal hard disk then as matching disc;
S2: the magnetic head bias ratio finding matching disc and faulty disk, finds magnetic head bias ratio closest to the matching disc of faulty disk;
S3: recombinate and replace the SAP magnetic head parameter in faulty disk ROM.
As preferably, the detailed step of described S2 is as follows:
S201: make matching disc and faulty disk all enter T level pattern by instruction, then enter 2 grades of instruction modes;
S202: the magnetic head bias ratio obtaining matching disc and faulty disk;
S203: contrast matching disc and the magnetic head bias ratio of faulty disk, finds matching disc closest to faulty disk as the final matching disc needed, eliminates other matching discs.
As preferably, the detailed step of described S3 is as follows:
S301: the ROM data reading matching disc and faulty disk;
S302: the memory location finding the SAP data in ROM data body;
S303: the size calculating SAP data volume, and extract;
S304: 8, the front and back byte of SAP data volume is removed;
S305: SAP data volume is divided into 5 data segments;
S306: legacy data is replaced in the relevant position of the second data segment of matching disc and the 4th data segment Write fault dish SAP data volume;
S307: replace original SAP data volume by the ROM of the new SAP data volume Write fault dish replaced.
As preferably, the data volume segmented mode in described S305 is as follows:
First data segment is: " 0 ~ 4B ";
Second data segment is: " 4C ~ 2CD ";
3rd data segment is: " 2CE ~ 2FC ";
4th data segment is: " 2FD ~ 32C ";
5th data segment is: " 32D ~ afterbody ".
Compared with prior art the invention has the advantages that: solve cannot be adaptive after hard disk replacement magnetic head problem; By twice screening, fast and accurately find the matching disc closest to faulty disk, prevent the situation that matching disc data are incompatible in adaptation procedure; Can find and SAP data of recombinating, repair process can not destroy the data of hard-disc storage, repairs the hard disk success ratio high time of also reducing reparation and spending.
Accompanying drawing explanation
Fig. 1 is the main flow chart of the embodiment of the present invention;
Fig. 2 is the detail flowchart of step S2 of the present invention;
Fig. 3 is the detail flowchart of step S3 of the present invention.
Embodiment
In order to describe the specific embodiment of the present invention in detail, illustrate below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of method of repairing Seagate hard disc magnetic head fault, is characterized in that comprising the following steps:
S1: select dish all consistent with No. Model, faulty disk, SN front three, firmware version number in normal hard disk then as matching disc;
Here by checking that outer No. model, the label of hard disk must be consistent.
By checking that the outer label SN front three of hard disk must be consistent: SN first bit representation manufacturing location (W=Wuxi, S=Suzhou, Z=Thailand); SN second represents disk types (disk types/density (1=1TB/platter, 2=500GB/platter)); SN the 3rd bit representation magnetic head number (E=4 magnetic head, F=6 magnetic head, D=2 magnetic head);
Must be consistent by the outer label firmware version number (FW) of hard disk.
S2: the magnetic head bias ratio finding matching disc and faulty disk, finds magnetic head bias ratio closest to the matching disc of faulty disk;
S3: recombinate and replace the SAP magnetic head parameter in faulty disk ROM.
As shown in Figure 2, the detailed step of described S2 is as follows:
S201: make matching disc and faulty disk all enter T level pattern by instruction, then enter 2 grades of instruction modes;
S202: the magnetic head bias ratio obtaining matching disc and faulty disk;
S203: contrast matching disc and the magnetic head bias ratio of faulty disk, finds matching disc closest to faulty disk as the final matching disc needed, eliminates other matching discs.
As shown in Figure 3, the detailed step of described S3 is as follows:
S301: the ROM data reading matching disc and faulty disk;
It should be noted that, below " the XX XX XX " that mention be variable value;
S302: the memory location finding the SAP data in ROM data body, here the storage address of SAP is found to have two kinds of modes, the first is: look for ROM head with, it is one group with 4 bytes, find SAP feature " 05 XX XX XX ", this value is the head bias feature of SAP data volume, and redirect can obtain SAP data volume head position.
The second is: be one group with 4 bytes in ROM head and retrieve, and finds SAP base address offset feature " 24 XX XX XX ", retrieves backward find SAP feature " 05 XX XX XX " by being directly one group with 4 after this feature redirect.
Such as: SAP base address is characterized as " 24 00 00 10 ", so " 0x10000 " is exactly SAP base address offset feature, is one group retrieves backward " 05 86 68 00 " after redirect with 4 bytes,
SAP data volume head bias position is obtained for " 0x18668 " by " 0x10000 "+" 0x6886 "=" 0x18668 ".
S303: the size calculating SAP data volume, and extract; The computing method of described size are 4 and oneself are one group, and after rear three bytes of one group of data after SAP feature deduct SAP feature, the value of three bytes equals SAP data volume size.It is then RAP feature " 06 00 50 07 " below that such as SAP is characterized as " 05 00 00 07 ", so obtains SAP data volume size by " 0x07500 "-" 0x07000 ".
S304: 8, the front and back byte of SAP data volume is removed;
S305: SAP data volume is divided into 5 data segments;
First data segment is: " 0 ~ 4B ";
Second data segment is: " 4C ~ 2CD ";
3rd data segment is: " 2CE ~ 2FC ";
4th data segment is: " 2FD ~ 32C ";
5th data segment is: " 32D ~ afterbody ".
S306: legacy data is replaced in the relevant position of the second data segment of matching disc and the 4th data segment Write fault dish SAP data volume;
S307: replace original SAP data volume by the ROM of the new SAP data volume Write fault dish replaced.
More than describe and set forth detail to fully understand the present invention, but the present invention can also adopt other to be different from this describing mode to implement, therefore the present invention is not limited to above disclosed concrete enforcement.
Claims (4)
1. repair a method for Seagate hard disc magnetic head fault, it is characterized in that comprising the following steps:
S1: select dish all consistent with No. Model, faulty disk, SN front three, firmware version number in normal hard disk then as matching disc;
S2: the magnetic head bias ratio finding matching disc and faulty disk, finds magnetic head bias ratio closest to the matching disc of faulty disk;
S3: recombinate and replace the SAP magnetic head parameter in faulty disk ROM.
2. according to claim 1 a kind of repair western number hard disk cannot the method for visit data, it is characterized in that the detailed step of described S2 is as follows:
S201: make matching disc and faulty disk all enter T level pattern by instruction, then enter 2 grades of instruction modes;
S202: the magnetic head bias ratio obtaining matching disc and faulty disk;
S203: contrast matching disc and the magnetic head bias ratio of faulty disk, finds matching disc closest to faulty disk as the final matching disc needed, eliminates other matching discs.
3. according to claim 1 a kind of repair western number hard disk cannot the method for visit data, it is characterized in that the detailed step of described S3 is as follows:
S301: the ROM data reading matching disc and faulty disk;
S302: the memory location finding the SAP data in ROM data body;
S303: the size calculating SAP data volume, and extract;
S304: 8, the front and back byte of SAP data volume is removed;
S305: SAP data volume is divided into 5 data segments;
S306: legacy data is replaced in the relevant position of the second data segment of matching disc and the 4th data segment Write fault dish SAP data volume;
S307: replace original SAP data volume by the ROM of the new SAP data volume Write fault dish replaced.
4. according to claim 3 a kind of repair western number hard disk cannot the method for visit data, it is characterized in that the data volume segmented mode in described S305 is as follows:
First data segment is: " 0 ~ 4B ";
Second data segment is: " 4C ~ 2CD ";
3rd data segment is: " 2CE ~ 2FC ";
4th data segment is: " 2FD ~ 32C ";
5th data segment is: " 32D ~ afterbody ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202388.8A CN104821176B (en) | 2015-04-27 | 2015-04-27 | A kind of method for repairing Seagate hard disc magnetic head failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202388.8A CN104821176B (en) | 2015-04-27 | 2015-04-27 | A kind of method for repairing Seagate hard disc magnetic head failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104821176A true CN104821176A (en) | 2015-08-05 |
| CN104821176B CN104821176B (en) | 2017-11-10 |
Family
ID=53731444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510202388.8A Active CN104821176B (en) | 2015-04-27 | 2015-04-27 | A kind of method for repairing Seagate hard disc magnetic head failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104821176B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321534A (en) * | 2015-11-16 | 2016-02-10 | 四川效率源信息安全技术股份有限公司 | Method for modifying magnetic head bitmap of Xijie hard disk |
| CN105354099A (en) * | 2015-09-30 | 2016-02-24 | 四川效率源信息安全技术股份有限公司 | Western digital hard disk repair method |
| CN111145789A (en) * | 2019-12-31 | 2020-05-12 | 厦门市美亚柏科信息股份有限公司 | Magnetic head matching method and system for Seagate hard disk |
| CN111785305A (en) * | 2020-06-23 | 2020-10-16 | 厦门市美亚柏科信息股份有限公司 | Seagate hard disk outer edge scratch data recovery method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038090A (en) * | 1996-04-03 | 2000-03-14 | International Business Machines Corporation | Method and apparatus for improving baseline recovery of an MR head using a programmable recovery time constant |
| CN1503231A (en) * | 2002-11-19 | 2004-06-09 | 三星电子株式会社 | Disk writer and writing method thereof |
| US20120014012A1 (en) * | 2010-07-16 | 2012-01-19 | Mike Holmberg | Varying data reader response |
| CN104536854A (en) * | 2014-11-29 | 2015-04-22 | 江门市未来之星网络科技有限公司 | Seagate hard disk firmware fault deep detection device and detection method thereof |
-
2015
- 2015-04-27 CN CN201510202388.8A patent/CN104821176B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038090A (en) * | 1996-04-03 | 2000-03-14 | International Business Machines Corporation | Method and apparatus for improving baseline recovery of an MR head using a programmable recovery time constant |
| CN1503231A (en) * | 2002-11-19 | 2004-06-09 | 三星电子株式会社 | Disk writer and writing method thereof |
| US20120014012A1 (en) * | 2010-07-16 | 2012-01-19 | Mike Holmberg | Varying data reader response |
| CN104536854A (en) * | 2014-11-29 | 2015-04-22 | 江门市未来之星网络科技有限公司 | Seagate hard disk firmware fault deep detection device and detection method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 冯宪光: "磁盘数据恢复中固件修复的研究与实现", 《计算机工程应用技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354099A (en) * | 2015-09-30 | 2016-02-24 | 四川效率源信息安全技术股份有限公司 | Western digital hard disk repair method |
| CN105321534A (en) * | 2015-11-16 | 2016-02-10 | 四川效率源信息安全技术股份有限公司 | Method for modifying magnetic head bitmap of Xijie hard disk |
| CN105321534B (en) * | 2015-11-16 | 2018-07-06 | 四川效率源信息安全技术股份有限公司 | A kind of method for changing Seagate hard disc magnetic head bitmap |
| CN111145789A (en) * | 2019-12-31 | 2020-05-12 | 厦门市美亚柏科信息股份有限公司 | Magnetic head matching method and system for Seagate hard disk |
| CN111785305A (en) * | 2020-06-23 | 2020-10-16 | 厦门市美亚柏科信息股份有限公司 | Seagate hard disk outer edge scratch data recovery method |
| CN111785305B (en) * | 2020-06-23 | 2021-06-22 | 厦门市美亚柏科信息股份有限公司 | Seagate hard disk outer edge scratch data recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104821176B (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104821176A (en) | Method for repairing faults of magnetic read of Seagate hard disk | |
| CN103177127B (en) | Based on CD server database storage system and utilize the method for this system | |
| CN100419894C (en) | Information recording device, information recording method | |
| JP4891418B2 (en) | Recording method | |
| CN105786401A (en) | Data management method and device in server cluster system | |
| CN102508620B (en) | Method for processing RAID5 (Redundant Array of Independent Disks) bad sector | |
| CN105354099A (en) | Western digital hard disk repair method | |
| CN107704211A (en) | A kind of magneto-optic electricity mixed light is made an inventory of goods in a warehouse and its management method and management system | |
| CN104598165A (en) | Method and device for improving durability of storage on embedded equipment | |
| CN104765754A (en) | Data storage method and device | |
| CN104407821A (en) | Method and device for achieving RAID reconstitution | |
| CN107728943B (en) | Method for delaying generation of check optical disc and corresponding data recovery method | |
| US7500136B2 (en) | Replacing member disks of disk arrays with spare disks | |
| CN104731532B (en) | A kind of method for repairing hard disk firmware area adaptation parameter module | |
| CN105242985B (en) | Data recovery method and device | |
| CN105761759A (en) | Test method and test device for random access memory | |
| CN1717732A (en) | Its method of information storage medium and recoding/reproduction | |
| US9466321B1 (en) | Angular position tracking of data accesses to mitigate risk of data loss | |
| CN109582237B (en) | Bad sector mapping method based on mechanical hard disk | |
| CN107797940A (en) | A kind of restoration methods for hard disc data area of Toshiba can not be accessed | |
| CN106527996A (en) | Disk identification method and device for disk cabinet | |
| CN103155040A (en) | Record/access device and record/access method | |
| CN106547490A (en) | Data read-write method and data read-write system | |
| CN105321534A (en) | Method for modifying magnetic head bitmap of Xijie hard disk | |
| CN101727940A (en) | Disc rotating direction control method and device and disc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 641000 Sichuan province Neijiang City Songshan Road No. 183 Applicant after: SICHUAN XLY INFORMATION SAFETY TECHNOLOGY CO., LTD. Address before: 641000 Sichuan province Neijiang City Songshan Road No. 183 Applicant before: Sichuan SalvationData Information Safety Technology Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Xiaoning Inventor after: Dong Chao Inventor after: Zhang Jiaqiang Inventor before: Liang Xiaoning |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |