CN103389918A - Repair method for false fault in RAID (Redundant Array of Independent Disks) system - Google Patents
Repair method for false fault in RAID (Redundant Array of Independent Disks) system Download PDFInfo
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- CN103389918A CN103389918A CN2013103126100A CN201310312610A CN103389918A CN 103389918 A CN103389918 A CN 103389918A CN 2013103126100 A CN2013103126100 A CN 2013103126100A CN 201310312610 A CN201310312610 A CN 201310312610A CN 103389918 A CN103389918 A CN 103389918A
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Abstract
The invention provides a repair method for a false fault in an RAID (Redundant Array of Independent Disks) system. The RAID system comprises a plurality of disks. The repair method comprises the steps of when the fault occurs in the disk of the RAID system, enabling a hot spare disk to reconstruct the RAID system; after the RAID system is reconstructed, performing status detection to the faulted disk and judging whether the faulted disk is a falsely faulted disk or a truly faulted disk according to the status detection result of the faulted disk; if the faulted disk is the falsely faulted disk, repairing the faulted disk and executing the next step; if the faulted disk is the truly faulted disk, giving out a disk damage alarm; and adding the faulted disk as a global hot spare disk. The repair method for the false fault in the RAID system provided by the invention can scientifically and effectively judge whether the faulted disk is the truly faulted disk or the falsely faulted disk and the falsely faulted disk can be automatically repaired, so that the use cost of a memory system is reduced and the security of data is better improved.
Description
[technical field]
The present invention relates to a kind of disk storage technology field, particularly RAID technology, relate in particular to the restorative procedure of false fault in a kind of RAID of being applicable to system.
[background technology]
Redundant Array of Independent Disks (RAID) (redundant array of independent disks; RAID) be the method in the different place of a plurality of hard disks that identical data are stored in.By data being placed on a plurality of hard disks, the mode of input-output operation symmetrical is overlapping, improved performance; Simultaneously, because a plurality of hard disk has increased the mean time between failures, storing redundant data has also increased fault-tolerant.RAID due to its fast, magnanimity and reliability high, be widely used in the industry-by-industries such as industry, military affairs, education, it is also the focus of industry that RAID is studied always.
HotSpare disk refers to the disk of conduct backup use under normal circumstances, is not used in the data storage; Only have when in the RAID system, the transmission disk failures causes RAID member to coil inefficacy, HotSpare disk replaces the RAID member of losing efficacy and coils for storing data.The process of the automatic RAID member's dish of HotSpare disk is called again the RIAD system reconfiguration.The use of HotSpare disk has improved the data security of RIAD system.
Memory device in the network operation process,, due to problems such as the long-term reading and writing data of disk can cause that disk track damage or magnetic head can't accurately be located, causes the data of storing in disk to read and write for a long time, and dish breaks down.Be the problem that system can't be repaired automatically because magnetic track damages problems, so the faulty disk that is caused by this class problem is the true fault dish, and head skew causes and can't accurately locate the problem that causes and can automatically be recovered by system, so the faulty disk that problems causes is false faulty disk.
But in practice, disk is that true fault dish or false faulty disk are all to change hard disk, faulty disk is returned to former factory detect, and the disk overwhelming majority of damaging in RAID is all false faulty disk.In this case, can additionally increase the use cost of a lot of memory devices; And the uncertainty of the time of breaking down due to disk, have cycle regular hour to again buying and install disk after disk breaks down, and will cause like this memory device redundance not enough, and the data security of preserving is caused certain threat.
[summary of the invention]
The technical problem to be solved in the present invention is to overcome memory device in prior art and in use occurs, after false faulty disk, failed disk is carried out automatic detection and rehabilitation, thereby reduces use cost, improves service efficiency and data security.
For solving the problems of the technologies described above, the present invention adopts following technical proposals:
A kind of restorative procedure that is applicable to false fault in the RAID system, wherein, described RAID system comprises a plurality of disks, comprises the steps:
When in described RAID system, disk breaks down, enable the described RAID system of HotSpare disk reconstruct;
Failed disk is carried out state-detection, and, according to described failed disk state-detection result, judge that described failed disk is false faulty disk or true property faulty disk;
If false faulty disk, repair described failed disk, and carry out next step; If true property faulty disk sends disk failures and reports to the police; And described failed disk is added to overall HotSpare disk.
In the present embodiment, wherein, described failed disk state-detection is comprised: disk has been repaired bad track, sector replacement operation execution number of times, the sector number that can't correct, current sector number to be mapped and the sector number of interface communication mistake has detected.
In the present embodiment, wherein,, according to failed disk state-detection result, judge that described failed disk is false faulty disk or true property faulty disk, specifically comprises the steps:
Receive described failed disk and damage signal;
Detect the damage sector that disk has been repaired;
According to testing result, judge that disk repaired bad track and whether exceeded threshold values, if "Yes" is true property faulty disk, and sends disk failures and report to the police; If "No", carry out next step;
Detect the sector replacement operation and carry out number of times;
, according to testing result, judge that whether sector replacement operation execution number of times exceeds threshold values,, if "Yes" is true property faulty disk, sends disk failures and reports to the police; If "No", carry out next step;
The sector number that detection can't be corrected;
According to testing result, whether the sector number that judgement can't be corrected exceeds threshold values, if "Yes" is true property faulty disk, and sends the disk failures warning; If "No", carry out next step;
Detect current sector number to be mapped;
According to testing result, judge whether current sector number to be mapped exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No", carry out next step;
Detect the sector number of interface communication mistake;
According to testing result, judge whether the sector number of interface communication mistake exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No" is false faulty disk.
In the present embodiment, wherein,, if false faulty disk is repaired described failed disk, comprise and remove described failed disk legacy data and described failed disk partition information.
Adopt technique scheme, beneficial effect of the present invention is:
the restorative procedure that is applicable to false fault in the RAID system that the above embodiment of the present invention provides, when disk breaks down in the RAID system, after enabling HotSpare disk the RAID system being reconstructed, failed disk is carried out state-detection, according to the state-detection result, judge whether described failed disk is false faulty disk, if during false faulty disk, after failed disk being repaired, and failed disk is added to overall HotSpare disk, scientificlly and effectively judged the true and false property faulty disk of disk, and false fault is repaired automatically, thereby reduced the use cost of storage system, improved better the security of data.
In addition, the restorative procedure that is applicable to false fault in the RAID system that the above embodiment of the present invention provides, can also promptly feed back to the keeper with true property fault, in order to get rid of in time true property fault.
[description of drawings]
Steps flow chart Figure 100 of the restorative procedure that is applicable to false fault in the RAID system that Fig. 1 provides for the embodiment of the present invention.
Fig. 2 for the embodiment of the present invention provide according to failed disk state-detection result, judge that described failed disk is steps flow chart Figure 200 of false faulty disk or true property faulty disk.
[embodiment]
, in order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, steps flow chart Figure 100 of the restorative procedure that is applicable to false fault in the RAID system that Fig. 1 provides for the embodiment of the present invention comprises the steps S110～step S140:
Step S110: when in the RAID system, disk breaks down, enable HotSpare disk the RAID system is reconstructed;
Be appreciated that the RAID system comprises a plurality of disks, when wherein any one disk breaks down, enable HotSpare disk the RAID system is reconstructed; There is no HotSpare disk in RAID system such as system, only send disk and kicked out of message, do not do other actions, wait for that the keeper processes.
Step S120: after the RAID system reconfiguration is completed, failed disk is carried out state-detection, and according to failed disk state-detection result, the failure judgement disk is false faulty disk or true property faulty disk;
Wherein, the failed disk state-detection is comprised: disk has been repaired bad track, sector replacement operation execution number of times, the sector number that can't correct, current sector number to be mapped and the sector number of interface communication mistake has detected.
See also Fig. 2, Fig. 2 for a preferred embodiment of the present invention provide according to failed disk state-detection result, judge that described failed disk is steps flow chart Figure 200 of false faulty disk or true property faulty disk, comprises the steps:
Step S210: receive failed disk and damage signal;
Step S220: detect the damage sector that disk has been repaired;
Step S230:, according to testing result, judge that disk repaired bad track and whether exceeded threshold values, if "Yes" is true property faulty disk, and sends disk failures and report to the police; If "No", carry out next step;
Being appreciated that there is its fixing threshold values the damage sector that disk has been repaired, when the result of the damage sector that the disk that detects has been repaired exceeds its threshold values, is true property faulty disk, will send disk failures and report to the police.In practice, the threshold values of the damage sector that has been repaired of the disk that different businessmans produce can be distinguished to some extent, and in embodiment provided by the invention, the threshold values of the damage sector that disk has been repaired is preferably 140.
Step S240: detect the sector replacement operation and carry out number of times;
Step S250:, according to testing result, judge that whether sector replacement operation execution number of times exceeds threshold values, if "Yes" is true property faulty disk, and sends the disk failures warning; If "No", carry out next step;
Being appreciated that disk sector replacement operation execution number of times has its fixing threshold values, when the result of the sector replacement operation execution number of times that detects exceeds its threshold values, is true property faulty disk, will send disk failures and report to the police.In practice, the sector replacement operation of the disk that different businessmans produce is carried out the threshold values of number of times and can be distinguished to some extent, and in embodiment provided by the invention, the threshold values that the disk sector replacement operation is carried out number of times is preferably 0.
Step S260: the sector number that detection can't be corrected;
Step S270: according to testing result, whether the sector number that judgement can't be corrected exceeds threshold values, if "Yes" is true property faulty disk, and sends the disk failures warning; If "No", carry out next step;
Being appreciated that the sector number that disk can't be corrected has its fixing threshold values, when the result of the sector number that can't correct that detects exceeds its threshold values, is true property faulty disk, will send disk failures and report to the police.In practice, the threshold values of the sector number that can't correct of the disk that different businessmans produce can be distinguished to some extent, and in embodiment provided by the invention, the threshold values of the sector number that disk can't be corrected is preferably 0.
Step S280: detect current sector number to be mapped;
Step S290:, according to testing result, judge whether current sector number to be mapped exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No", carry out next step;
Being appreciated that current sector number to be mapped has its fixing threshold values, when the result of the sector number current to be mapped that detects exceeds its threshold values, is true property faulty disk, will send disk failures and report to the police.In practice, the threshold values of the sector number current to be mapped of the disk that different businessmans produce can be distinguished to some extent, and in embodiment provided by the invention, the threshold values of the current sector number to be mapped of disk is preferably 0.
Step S2110: the sector number that detects the interface communication mistake;
Step S2111:, according to testing result, judge whether the sector number of interface communication mistake exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No" is false faulty disk.
The sector number that is appreciated that the interface communication mistake has its fixing threshold values, when the result of the sector number of the interface communication mistake that detects exceeds its threshold values, is true property faulty disk, will send the disk failures warning.In practice, the threshold values of the sector number of the interface communication mistake of the disk that different businessmans produce can be distinguished to some extent, and in embodiment provided by the invention, the threshold values of the sector number of disk interface garble is preferably 0.
be appreciated that, in above-mentioned steps S210～step S2111, disk has been repaired bad track, the sector replacement operation is carried out number of times, the sector number that can't correct, the description of the detection of the sector number of current sector number to be mapped and interface communication mistake has sequencing, but, only for convenience herein, and in practice to their sequentially not requirement of detection, as long as and comprise, disk has been repaired bad track, the sector replacement operation is carried out number of times, the sector number that can't correct, the detection of the sector number of current sector number to be mapped and interface communication mistake, and when disk has been repaired bad track, the sector replacement operation is carried out number of times, the sector number that can't correct, be judged as true property faulty disk when in the sector number of current sector number to be mapped and interface communication mistake, any testing result exceeds its corresponding threshold values, and only have and just be judged as false faulty disk when above-mentioned all testing results all do not exceed corresponding threshold values.
Step S130:, if false faulty disk is repaired failed disk, and carry out next step; If true property faulty disk sends disk failures and reports to the police;
In a preferred embodiment provided by the invention, failed disk is repaired, comprise and remove failed disk legacy data and failed disk partition information.
Step S140: failed disk is added to overall HotSpare disk.
After reparation is completed to failed disk, disk is added to the overall HotSpare disk of storage array,, as there is no HotSpare disk in the RAID system, only send disk and kicked out of message, do not do other actions, wait for that the keeper processes.
Online detection and the reparation of false fault in above-mentioned steps S110～step S140 has completed the RAID system.
the restorative procedure that is applicable to false fault in the RAID system that the above embodiment of the present invention provides, when disk breaks down in the RAID system, after enabling HotSpare disk the RAID system being reconstructed, failed disk is carried out state-detection, according to the state-detection result, judge whether described failed disk is false faulty disk, if during false faulty disk, after failed disk being repaired, and failed disk is added to overall HotSpare disk, scientificlly and effectively judged the true and false property faulty disk of disk, and false fault is repaired automatically, thereby reduced the use cost of storage system, improved better the security of data.
the above, it is only preferred embodiment of the present invention, not the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. restorative procedure that is applicable to false fault in the RAID system, wherein, described RAID system comprises a plurality of disks, it is characterized in that, comprises the steps:
When in described RAID system, disk breaks down, enable the described RAID system of HotSpare disk reconstruct;
Failed disk is carried out state-detection, and, according to described failed disk state-detection result, judge that described failed disk is false faulty disk or true property faulty disk;
If false faulty disk, repair described failed disk, and carry out next step; If true property faulty disk sends disk failures and reports to the police; And
Described failed disk is added to overall HotSpare disk.
2. the restorative procedure that is applicable to false fault in the RAID system according to claim 1, it is characterized in that, wherein, described failed disk state-detection is comprised: disk has been repaired bad track, sector replacement operation execution number of times, the sector number that can't correct, current sector number to be mapped and the sector number of interface communication mistake has detected.
3. the restorative procedure that is applicable to false fault in the RAID system according to claim 1, is characterized in that, wherein,, according to failed disk state-detection result, judges that described failed disk is false faulty disk or true property faulty disk, specifically comprises the steps:
Receive described failed disk and damage signal;
Detect the damage sector that disk has been repaired;
According to testing result, judge that disk repaired bad track and whether exceeded threshold values, if "Yes" is true property faulty disk, and sends disk failures and report to the police; If "No", carry out next step;
Detect the sector replacement operation and carry out number of times;
, according to testing result, judge that whether sector replacement operation execution number of times exceeds threshold values, if "Yes" is true property faulty disk, and sends the disk failures warning; If "No", carry out next step;
The sector number that detection can't be corrected;
According to testing result, whether the sector number that judgement can't be corrected exceeds threshold values,, if "Yes" is true property faulty disk, sends disk failures and reports to the police; If "No", carry out next step;
Detect current sector number to be mapped;
According to testing result, judge whether current sector number to be mapped exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No", carry out next step;
Detect the sector number of interface communication mistake;
According to testing result, judge whether the sector number of interface communication mistake exceeds threshold values, if "Yes" is true property faulty disk, and send the disk failures warning; If "No" is false faulty disk.
4. the restorative procedure that is applicable to false fault in the RAID system according to claim 1, it is characterized in that, wherein,, if false faulty disk is repaired described failed disk, comprise and remove described failed disk legacy data and described failed disk partition information.
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| CN104268028A (en) * | 2014-09-22 | 2015-01-07 | 浙江宇视科技有限公司 | Magnetic disk data reading method and device based on magnetic disk read error category |
| CN104484251A (en) * | 2014-12-11 | 2015-04-01 | 华为技术有限公司 | Method and device for processing faults of hard disk |
| CN106407033A (en) * | 2016-09-30 | 2017-02-15 | 郑州云海信息技术有限公司 | Magnetic disc fault handling method and device |
| CN108245049A (en) * | 2018-01-30 | 2018-07-06 | 九阳股份有限公司 | A kind of fault handling method of food processor |
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| CN103645997A (en) * | 2013-12-26 | 2014-03-19 | 深圳市迪菲特科技股份有限公司 | Data protection method and system |
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| CN109308238A (en) * | 2018-12-03 | 2019-02-05 | 郑州云海信息技术有限公司 | A kind of method, device and equipment that storage system disk array low-quality disk is adjusted |
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| CN110825639A (en) * | 2019-11-08 | 2020-02-21 | 西安雷风电子科技有限公司 | Tamper-resistant time software License verification method |
| CN110825639B (en) * | 2019-11-08 | 2023-01-31 | 西安雷风电子科技有限公司 | Tamper-resistant time software License verification method |
| CN113671928A (en) * | 2021-07-05 | 2021-11-19 | 浙江零跑科技股份有限公司 | Fault-tolerant type fault detection and protection method for controller of electric drive assembly |
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Application publication date: 20131113 |