CN103488547A - Rapid reconstruction method of RAID group fault hard disk - Google Patents
Rapid reconstruction method of RAID group fault hard disk Download PDFInfo
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- CN103488547A CN103488547A CN201310437232.9A CN201310437232A CN103488547A CN 103488547 A CN103488547 A CN 103488547A CN 201310437232 A CN201310437232 A CN 201310437232A CN 103488547 A CN103488547 A CN 103488547A
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Abstract
The invention provides a rapid reconstruction method of a RAID group fault hard disk. The method specifically comprises, firstly, reading incorrupt and readable data from the fault hard disk through a memory and hard disk communication mechanism to copy the data into a hot spare disk, then after finishing copying the readable data, verifying corrupt and unreadable data in the hard disk through a stripe verification operation function. Compared with the prior art, the rapid reconstruction method of the RAID group fault hard disk provides rapid copying of the readable data of the fault hard disk, improves the data reconstruction speed of the fault hard disk and largely saves service waiting time.
Description
Technical field
The present invention relates to field of computer technology, specifically a kind of method of RAID group faulty hard disk Fast Reconstruction.
Background technology
Memory array system is generally done traditional RAID mode based on dish age hardness dish and is realized, the data hard disk adds hot standby hard disk mode, volume space can only be distributed on the disk in the RAID group, the just Shi Caihui work of breaking down of the hard disk in array of hot standby hard disk, hot standby hard drive space is always in stand-by state.When the hard disk in array breaks down, HotSpare disk need to be born data reconstruction allly writes work, data write and need to sequentially carry out, need all band sequential write of next band toward HotSpare disk, HotSpare disk becomes the bottleneck of performance, and, when data are rebuild, all other write work and all stopped, participate in the exclusive or check computing, wait for that very long band computing and write operation finish just can work on.
Summary of the invention
Technical assignment of the present invention is to solve the deficiencies in the prior art, and a kind of method of RAID group faulty hard disk Fast Reconstruction is provided.
Technical scheme of the present invention realizes in the following manner, the method of this kind of RAID group faulty hard disk Fast Reconstruction, its concrete process of reconstruction is: at first use storage and hard disk communication mechanism to read in faulty hard disk the unspoiled data direct copying that can read in HotSpare disk, after treating that all data of reading all copy, the verification of recycling bar tape verifying calculation function has damaged the data in hard disk that can't read.
The detailed step of described process of reconstruction is:
The first step: check whether faulty hard disk has directly reading out data, if having, faulty hard disk and HotSpare disk, to copying, are made all data Replicas that damage can be identified in HotSpare disk, otherwise directly enter second step;
Second step: by faulty hard disk corrupt data by the verification compute mode, draw, then write in HotSpare disk.
The beneficial effect that the present invention compared with prior art produced is:
The method of a kind of RAID group faulty hard disk Fast Reconstruction of the present invention breaks through traditional RAID and breaks down after hard disk, all bands in faulty hard disk are first calculated to the fixed mode that rear order writes one by one, increase elder generation and directly read not impaired data, direct copying is to HotSpare disk, avoid many duplication check calculating processes, accelerated the RAID process of reconstruction; Saved faulty hard disk release time, the data of recovering the soonest to system requirements are the most again reached the standard grade and are played an important role, avoided the risk because of loss of data between age at failure, especially high to stability requirement, to portfolio large, many client, the present invention is improved will great competitive power, practical, be easy to promote.
The accompanying drawing explanation
Accompanying drawing 1 is realization flow figure of the present invention.
Accompanying drawing 2 is schematic diagram of step 1 of the present invention.
Accompanying drawing 3 is schematic diagram of step 2 of the present invention.
Mark in accompanying drawing means respectively:
1, data hard disk, 2, faulty hard disk, 3, hot standby hard disk.
Embodiment
Method below in conjunction with accompanying drawing to a kind of RAID group faulty hard disk Fast Reconstruction of the present invention elaborates.
As shown in Figure 1, a kind of method of RAID group faulty hard disk Fast Reconstruction now is provided, its concrete process of reconstruction is: at first use storage and hard disk communication mechanism to read in faulty hard disk the unspoiled data direct copying that can read in HotSpare disk, after treating that all data of reading all copy, the verification of recycling bar tape verifying calculation function has damaged the data in hard disk that can't read.
The detailed step of described process of reconstruction is as shown in accompanying drawing 2, Fig. 3, and wherein 1 means the data hard disk, and 2 mean faulty hard disk, and 3 mean hot standby hard disk.
Its detailed step is:
The first step: check whether faulty hard disk has directly reading out data, if having, faulty hard disk and HotSpare disk, to copying, are made all data Replicas that damage can be identified in HotSpare disk, otherwise directly enter second step;
Second step: by faulty hard disk corrupt data by the verification compute mode, draw, then write in HotSpare disk.
The present invention is by after being checked through the data that in faulty hard disk, existence can directly be read, direct copying is to hot standby hard disk, for a lot of faulty hard disks that all do not damage, increased the rapid copy of faulty hard disk readable data, improved the speed of faulty hard disk data reconstruction, greatly save the time that business is waited for, avoided the very long wait of traditional RAID.
Except the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1. the method for RAID group faulty hard disk Fast Reconstruction, it is characterized in that, its concrete process of reconstruction is: at first use storage and hard disk communication mechanism to read in faulty hard disk the unspoiled data direct copying that can read in HotSpare disk, after treating that all data of reading all copy, the verification of recycling bar tape verifying calculation function has damaged the data in hard disk that can't read.
2. the method for a kind of RAID group faulty hard disk Fast Reconstruction according to claim 1, is characterized in that, the detailed step of described process of reconstruction is:
The first step: check whether faulty hard disk has directly reading out data, if having, faulty hard disk and HotSpare disk, to copying, are made all data Replicas that damage can be identified in HotSpare disk, otherwise directly enter second step;
Second step: by faulty hard disk corrupt data by the verification compute mode, draw, then write in HotSpare disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310437232.9A CN103488547A (en) | 2013-09-24 | 2013-09-24 | Rapid reconstruction method of RAID group fault hard disk |
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| CN201310437232.9A CN103488547A (en) | 2013-09-24 | 2013-09-24 | Rapid reconstruction method of RAID group fault hard disk |
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| CN103488547A true CN103488547A (en) | 2014-01-01 |
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| CN201310437232.9A Pending CN103488547A (en) | 2013-09-24 | 2013-09-24 | Rapid reconstruction method of RAID group fault hard disk |
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Cited By (5)
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| CN105183583A (en) * | 2015-07-31 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for data reconstruction of disk array, and disk array system |
| CN106371947A (en) * | 2016-09-14 | 2017-02-01 | 郑州云海信息技术有限公司 | Multi-fault disk data recovery method for RAID (Redundant Arrays of Independent Disks) and system thereof |
| CN107766180A (en) * | 2017-09-22 | 2018-03-06 | 成都华为技术有限公司 | Management method, device and the readable storage medium storing program for executing of storage medium |
| CN107908515A (en) * | 2017-11-16 | 2018-04-13 | 郑州云海信息技术有限公司 | A kind of system and method for test server hard disk large data files transmittability |
| CN111158608A (en) * | 2019-12-31 | 2020-05-15 | 云和恩墨(北京)信息技术有限公司 | Hard disk fault processing method and device and distributed system |
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| CN102981778A (en) * | 2012-11-15 | 2013-03-20 | 浙江宇视科技有限公司 | Redundant array of independent disks (RAID) array reconstruction method and device thereof |
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| US20090327801A1 (en) * | 2008-06-30 | 2009-12-31 | Fujitsu Limited | Disk array system, disk controller, and method for performing rebuild process |
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| CN101609420A (en) * | 2009-07-17 | 2009-12-23 | 杭州华三通信技术有限公司 | Realize method and the redundant arrays of inexpensive disks and the controller thereof of rebuilding of disc redundant array |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105183583A (en) * | 2015-07-31 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for data reconstruction of disk array, and disk array system |
| CN106371947A (en) * | 2016-09-14 | 2017-02-01 | 郑州云海信息技术有限公司 | Multi-fault disk data recovery method for RAID (Redundant Arrays of Independent Disks) and system thereof |
| CN106371947B (en) * | 2016-09-14 | 2019-07-26 | 郑州云海信息技术有限公司 | A kind of multiple faults disk data reconstruction method and its system for RAID |
| CN107766180A (en) * | 2017-09-22 | 2018-03-06 | 成都华为技术有限公司 | Management method, device and the readable storage medium storing program for executing of storage medium |
| CN107766180B (en) * | 2017-09-22 | 2020-08-14 | 成都华为技术有限公司 | Storage medium management method and device and readable storage medium |
| US11237929B2 (en) | 2017-09-22 | 2022-02-01 | Huawei Technologies Co., Ltd. | Method and apparatus, and readable storage medium |
| US11714733B2 (en) | 2017-09-22 | 2023-08-01 | Huawei Technologies Co., Ltd. | Method and apparatus, and readable storage medium |
| CN107908515A (en) * | 2017-11-16 | 2018-04-13 | 郑州云海信息技术有限公司 | A kind of system and method for test server hard disk large data files transmittability |
| CN111158608A (en) * | 2019-12-31 | 2020-05-15 | 云和恩墨(北京)信息技术有限公司 | Hard disk fault processing method and device and distributed system |
| CN111158608B (en) * | 2019-12-31 | 2021-11-23 | 云和恩墨(北京)信息技术有限公司 | Hard disk fault processing method and device and distributed system |
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