CN103970625A - Data recovery method without hot spare disk - Google Patents
Data recovery method without hot spare disk Download PDFInfo
- Publication number
- CN103970625A CN103970625A CN201410167439.3A CN201410167439A CN103970625A CN 103970625 A CN103970625 A CN 103970625A CN 201410167439 A CN201410167439 A CN 201410167439A CN 103970625 A CN103970625 A CN 103970625A
- Authority
- CN
- China
- Prior art keywords
- data
- hard disk
- disk
- raid
- strip
- 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.)
- Pending
Links
Abstract
The invention provides a data recovery method without a hot spare disk. The specific implementation process of the data recovery method comprises the steps that when a certain hard disk in an RAID set breaks down, strip check of the faulted hard disk is carried out on the other remaining hard disks of the RAID set one by one; if the fact that a strip of the faulted hard disk is a check bit is judged, the nest strip is judged; if the strip of the faulted hard disk is a data strip, all the hard disks are checked, and data after the check are concurrently written in the remaining hard disks. Compared with the prior art, the data recovery method without the hot spare disk abandons the hot spare disk concept, the data checked out of the remaining hard disks in the RAID set are concurrently written in the remaining hard disks, resources are saved, the data recovery performance is improved, recovery time of some clients with high requirements for stability is saved, and system stability is enhanced.
Description
Technical field
The present invention relates to technical field of data storage, specifically a kind of data reconstruction method without HotSpare disk.
Background technology
Memory array system is generally done traditional RAID mode based on dish age hardness dish and is realized, data hard disk adds hot standby hard disk mode, volume space is distributed on the disk in RAID group, the just Shi Caihui work of breaking down of the hard disk in array of hot standby hard disk, and hot standby hard drive space is always in stand-by state.When the hard disk in array breaks down, HotSpare disk is born data reconstruction allly writes work, data serial writes and need to sequentially carry out, need next band sequential write toward HotSpare disk, HotSpare disk becomes the bottleneck of performance, and when data are rebuild, all other write work and all stopped, wait for after very long reconstruction completes and writing, like this data recovery capability a little less than, performance is general, based on this, a kind of data reconstruction method that there is no HotSpare disk is now provided, and then saves HotSpare disk, and improved the performance that data are recovered.
Summary of the invention
Technical assignment of the present invention is to solve the deficiencies in the prior art, and a kind of data reconstruction method without HotSpare disk is provided.
Technical scheme of the present invention realizes in the following manner, this kind of data reconstruction method without HotSpare disk, and its specific operation process is as follows:
One, data hard disk RAID group is set, this RAID group refers to RAID5 group or RAID6 group;
When two, a hard disk in this RAID group breaks down, in RAID group, remain hard disk and all participate in verification;
When three, verification is data bit to band in faulty hard disk, checking data ice method is written to RAID and organizes in other hard disk, then enter step 4; Verification, to the non-data bit of band in faulty hard disk, during for check bit, directly enters step 4;
Four, carry out next tape verifying;
Five, after all tape verifyings, complete data and resume work.
The beneficial effect that the present invention compared with prior art produced is:
A kind of data reconstruction method without HotSpare disk of the present invention is saved HotSpare disk, improved the performance that data are recovered, save the time of recovering, system stability is strong, economize on resources, shorten system downtime, avoided greatly system to stop between service period data risk of missing again, practical, be easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 is embodiments of the invention schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, a kind of data reconstruction method without HotSpare disk of the present invention is described in detail below.
A kind of data reconstruction method without HotSpare disk is now provided, and its specific operation process is as follows:
One, data hard disk RAID group is set, this RAID group refers to RAID5 group or RAID6 group;
When two, a hard disk in this RAID group breaks down, in RAID group, remaining other hard disk all participates in the tape verifying of bar one by one of faulty hard disk.
When three, verification is data bit to band in faulty hard disk, checking data ice method is written to RAID and organizes in other hard disk, then enter step 4; Verification, to the non-data bit of band in faulty hard disk, during for check bit, directly enters step 4;
Four, carry out next tape verifying;
Five, after all tape verifyings, complete data and resume work.
The method writes than the serial of front traditional HotSpare disk, and performance has great lifting.
Embodiment:
As shown in Figure 1, after in the RAID group that 10 hard disks form, a hard disk goes offline and rolls off the production line, in RAID, other 9 hard disks participate in verification and checking data are written in these 9 hard disks.
In sum, the HotSpare disk in traditional RAID has been given up in this invention, tradition RAID in after a hard disk breaks down, after bar tape verifying, write HotSpare disk one by one, in this invention, after a hard disk breaks down, in RAID, all associated hard disk bands participate in verification, and verification Data Concurrent is write back to hard disk remaining in RAID, thereby improved the performance of whole system.Change traditional RAID verification data strip band serial in faulty hard disk is write to HotSpare disk method, change into checking data is written in RAID group in other hard disk, serial changes concurrent writing into, improved data resume speed, shortened system downtime, avoid greatly system to stop between service period data risk of missing again, to the unaffected maintenance of system performance is stable, played very important effect, especially to the extremely stable client of performance requirement.
The foregoing is only embodiments of the invention, within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. without a data reconstruction method for HotSpare disk, it is characterized in that its specific operation process is as follows:
One, data hard disk RAID group is set, this RAID group refers to RAID5 group or RAID6 group;
When two, a hard disk in this RAID group breaks down, in RAID group, remain hard disk and all participate in verification;
When three, verification is data bit to band in faulty hard disk, checking data ice method is written to RAID and organizes in other hard disk, then enter step 4; Verification, to the non-data bit of band in faulty hard disk, during for check bit, directly enters step 4;
Four, carry out next tape verifying;
Five, after all tape verifyings, complete data and resume work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167439.3A CN103970625A (en) | 2014-04-24 | 2014-04-24 | Data recovery method without hot spare disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167439.3A CN103970625A (en) | 2014-04-24 | 2014-04-24 | Data recovery method without hot spare disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103970625A true CN103970625A (en) | 2014-08-06 |
Family
ID=51240156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410167439.3A Pending CN103970625A (en) | 2014-04-24 | 2014-04-24 | Data recovery method without hot spare disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103970625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142872A (en) * | 2014-08-13 | 2014-11-12 | 浪潮电子信息产业股份有限公司 | Quick reestablishment method for RAID (redundan array of inexpensive disk) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100031081A1 (en) * | 2004-03-31 | 2010-02-04 | Nec Corporation | Data Storage System and Control Method Thereof |
| CN101976175A (en) * | 2010-08-19 | 2011-02-16 | 北京同有飞骥科技有限公司 | Method for constructing disk array by horizontal grouping parallel concentrated verification |
| CN102508747A (en) * | 2011-12-01 | 2012-06-20 | 浪潮电子信息产业股份有限公司 | Method for accelerating recovery of failure disc |
-
2014
- 2014-04-24 CN CN201410167439.3A patent/CN103970625A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100031081A1 (en) * | 2004-03-31 | 2010-02-04 | Nec Corporation | Data Storage System and Control Method Thereof |
| CN101976175A (en) * | 2010-08-19 | 2011-02-16 | 北京同有飞骥科技有限公司 | Method for constructing disk array by horizontal grouping parallel concentrated verification |
| CN102508747A (en) * | 2011-12-01 | 2012-06-20 | 浪潮电子信息产业股份有限公司 | Method for accelerating recovery of failure disc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142872A (en) * | 2014-08-13 | 2014-11-12 | 浪潮电子信息产业股份有限公司 | Quick reestablishment method for RAID (redundan array of inexpensive disk) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103823728B (en) | A kind of method of raid-array Intelligent Reconstruction | |
| CN103513942B (en) | The reconstructing method of raid-array and device | |
| CN103034458B (en) | Method and the device of Redundant Array of Independent Disks (RAID) is realized in solid state hard disc | |
| GB201303376D0 (en) | Implementing large block random write hot spare SSD for SMR raid | |
| CN106527971B (en) | A method of promoting SSD reading performance during garbage reclamation | |
| CN104142872A (en) | Quick reestablishment method for RAID (redundan array of inexpensive disk) | |
| CN104407933A (en) | Data backup method and device | |
| CN104331254A (en) | Dual-active storage system design method based on dual-active logical volumes | |
| CN103019893A (en) | Multi-disk fault-tolerant two-dimensional hybrid disk RAID4 system architecture and read-write method thereof | |
| CN102541466A (en) | Hybrid storage control system and method | |
| CN104375904A (en) | Disaster recovery backup method based on snapshot differentiation data transmission | |
| CN102073561A (en) | Method for correcting error of write operation of solid state hard disk | |
| CN103488547A (en) | Rapid reconstruction method of RAID group fault hard disk | |
| CN103617195A (en) | Data synchronization system and data synchronization method used for MySQL database | |
| CN102693096B (en) | Bit-based serial transmission cloud storage method and device | |
| CN101840311A (en) | Self-repairing method suitable for RAID system and RAID system | |
| CN104572374B (en) | Processing method, device and the storage device of storage | |
| CN103049407B (en) | Date storage method, Apparatus and system | |
| EP2889751B1 (en) | Method and apparatus for determining redundant array of independent disks | |
| CN101901115A (en) | Method for constructing redundant array of inexpensive disks (RAID) 6 level | |
| CN104252420A (en) | Data writing method and memory system | |
| CN102495680A (en) | Reconstruction method of RAID (Redundant Array of Independent Disks) system | |
| CN103970625A (en) | Data recovery method without hot spare disk | |
| CN102708062A (en) | Multimedia storage method and multimedia storage device based on data block | |
| CN104156276B (en) | It is a kind of to prevent two pieces of RAID methods of disk failures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |