CN102662877A - Method for preventing loss of raid (redundant array of independent discs) information on condition with multiple damaged hard discs - Google Patents
Method for preventing loss of raid (redundant array of independent discs) information on condition with multiple damaged hard discs Download PDFInfo
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- CN102662877A CN102662877A CN2012101164052A CN201210116405A CN102662877A CN 102662877 A CN102662877 A CN 102662877A CN 2012101164052 A CN2012101164052 A CN 2012101164052A CN 201210116405 A CN201210116405 A CN 201210116405A CN 102662877 A CN102662877 A CN 102662877A
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Abstract
The invention provides a method for preventing the loss of raid (redundant array of independent discs) information on a condition with multiple damaged hard discs. According to the method disclosed by the invention, a method for separating the raid information from data information is adopted for preventing the loss of the raid information under the situation that the hard discs are offline, hardware comprises a raid information memory and a data memory, raid is controlled through software, the raid information is written into the erasable raid information memory, and data of a user is saved into the hard disc data memory, so that the loss of the raid information can be prevented under the situation that the multiple hard discs are damaged.
Description
Technical field
The present invention relates to the Computer Storage field tests, be specifically related to a kind of method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout.
Background technology
Present raid mechanism, no matter be that radi5 or raid6 only allow going offline of 1-2 piece hard disk, if exceed this scope, array just will collapse, and data are probably directly all lost.Tracing it to its cause is because losing of array information causes whole array no datat index information, causes data can't recover completely.This array information generally is kept in the hard disk, if hard disk goes offline, raid information will go offline together and lose so; Traditional connected mode is that raid card and hard disk are directly coupled together; The ROC chip of raid card carries out the establishment of raid, but because raid itself can not store raid information, so this part information has been placed in hard disk; If so hard disk corruptions go offline, that raid information will with one of lost block.
Summary of the invention
The purpose of this invention is to provide a kind of method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout.Through the preservation of raid information, can guarantee that the raid array can not lose, guaranteed that follow-up data recover.
The objective of the invention is to realize, under the situation that the method realization hard disk that adopts raid information to separate with data message goes offline, prevent losing of raid information by following mode; Hardware comprises raid information-storing device and data-carrier store, through software raid is controlled, and raid information is write erasable raid information-storing device; Deposit user's data in the hard disc data storer, be implemented under the polylith hard disk corruptions situation and prevent losing of raid information, step is following: according to ROM data under the situation of outage is to lose the characteristic that can carry out dynamic assignment with the rom space according to the quantity of hard disk; Integrated erasable ROM layer in the middle of the raid card, the rom layer can be that every hard disk is divided a storage space separately according to the quantity of hard disk, like this when being raid; At first raid information is write the ROM layer; The raid card can be cut apart ROM according to the quantity of hard disk, and the hard disk of the ROM space that will cut apart and rear end is bound one by one and marked, after marked; The raid card can write ROM separately with the RAID information of every hard disk; Like this, even hard disk corruptions can not cause raid information dropout yet, and only with storage of subscriber data in the hard disk of rear end; So just reached the purpose of raid information and data hard disk separate storage; Even the rear end hard disk corruptions can not make raid information dropout to make the restorability of data obviously improve so yet.
A kind of method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout is under the method realization hard disk that adopts raid information to separate with the data message situation about going offline, and prevents losing of raid information; Hardware comprises raid information-storing device and data-carrier store, through software raid is controlled, in the ROM that raid information writes with hard disk separates; Deposit user's data in the hard disc data storer, under polylith hard disk corruptions situation, prevent losing of raid information, step is following: on the hard disk backboard of storage according to the ROM of hard disk quantity configuration equal number; Hard-disk interface of each ROM collocation uses; This rom capacity does not need very big, even several million is just enough, like this when being raid; Raid information is deposited in the every pairing ROM of hard disk the inside; And with storage of subscriber data hard disk the inside, so also can accomplish to prevent under polylith hard disk corruptions situation, also can not cause raid information dropout separating of hard disk and RAID information.
A kind of method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout; Be under the method realization hard disk that adopts raid information the to separate situation about going offline with data message; Prevent losing of raid information; Use the SSD hard disk to replace the rom storer, backup through batch raid information and storage are implemented under the polylith hard disk corruptions situation and prevent losing of raid information.
The invention has the beneficial effects as follows: the method that adopts raid information to separate with data message, under the situation that the realization hard disk corruptions goes offline, the assurance raid information system of not losing does not collapse.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of integrated erasable ROM layer in the middle of the raid card.
The invention embodiment
Mode one: the erasable ROM that will mention in will inventing, be integrated on the RAID card, the size in ROM space can customize according to demand; But this is not equal to the buffer memory of raid card, and raid card data in buffer is all cut off the power supply and lost, and the ROM layer is that no. like this when being raid; The raid card can be cut apart ROM according to the quantity of hard disk; And the hard disk of the ROM space that will cut apart and rear end is bound one by one and marked, and this work is necessary, if because mark just can not detect hard disk; If have hard disk to go offline so, can't confirm it specifically is any piece hard disk.After marked, the raid card can write ROM separately with the RAID information of every hard disk, the raid information dropout that so just can avoid hard disk corruptions to cause, and only with storage of subscriber data in the hard disk of rear end;
Mode two: be the implementation that breaks away from the raid card, that be exactly on the hard disk backboard of storage according to the ROM of hard disk quantity configuration equal number, hard-disk interface of each ROM collocation uses; This rom capacity does not need very big; Even several million is just enough, and when being raid, raid information is deposited in the every pairing ROM of hard disk the inside like this; And with storage of subscriber data hard disk the inside, so also accomplished separating of hard disk and RAID information.
Certainly, other deriving modes are arranged also,, can accomplish the backup and the storage of raid information in batches like this such as replacing the rom storer with the SSD hard disk.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (3)
1. method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout; The method that it is characterized in that adopting raid information to separate with data message realizes under the situation that hard disk goes offline; Prevent losing of raid information, hardware comprises raid information-storing device and data-carrier store, through software raid is controlled; Raid information is write erasable raid information-storing device; Deposit user's data in the hard disc data storer, be implemented under the polylith hard disk corruptions situation and prevent losing of raid information, step is following:
According to ROM data under the situation of outage is to lose the characteristic that can carry out dynamic assignment with the rom space according to the quantity of hard disk, integrated erasable ROM layer in the middle of the raid card, and the rom layer can be that every hard disk is divided a storage space separately according to the quantity of hard disk; When being raid, at first raid information is write the ROM layer like this, the raid card can be cut apart ROM according to the quantity of hard disk; And the hard disk of the ROM space that will cut apart and rear end is bound one by one and marked; After marked, the raid card can write ROM separately with the RAID information of every hard disk, like this; Even hard disk corruptions can not cause raid information dropout yet; And only with storage of subscriber data in the hard disk of rear end, so just reached the purpose of raid information and data hard disk separate storage, even the rear end hard disk corruptions; Can not make yet and raid information dropout make the restorability of data obviously improve like this.
2. method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout is characterized in that preventing losing of raid information under the situation that the method that adopts raid information to separate with data message realizes that hard disk goes offline; Hardware comprises raid information-storing device and data-carrier store, through software raid is controlled, in the ROM that raid information writes with hard disk separates; Deposit user's data in the hard disc data storer, under polylith hard disk corruptions situation, prevent losing of raid information, step is following: on the hard disk backboard of storage according to the ROM of hard disk quantity configuration equal number; Hard-disk interface of each ROM collocation uses; This rom capacity does not need very big, even several million is just enough, like this when being raid; Raid information is deposited in the every pairing ROM of hard disk the inside; And with storage of subscriber data hard disk the inside, so also can accomplish to prevent under polylith hard disk corruptions situation, also can not cause raid information dropout separating of hard disk and RAID information.
3. method of avoiding under polylith hard disk corruptions situation, preventing raid information dropout; The method that it is characterized in that adopting raid information to separate with data message realizes under the situation that hard disk goes offline; Prevent losing of raid information; Use the SSD hard disk to replace the rom storer, backup through batch raid information and storage are implemented under the polylith hard disk corruptions situation and prevent losing of raid information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101164052A CN102662877A (en) | 2012-04-20 | 2012-04-20 | Method for preventing loss of raid (redundant array of independent discs) information on condition with multiple damaged hard discs |
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| CN2012101164052A CN102662877A (en) | 2012-04-20 | 2012-04-20 | Method for preventing loss of raid (redundant array of independent discs) information on condition with multiple damaged hard discs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500136A (en) * | 2013-10-18 | 2014-01-08 | 浪潮电子信息产业股份有限公司 | Method for protecting computer hardware data in cloud system |
| CN105760255A (en) * | 2016-02-14 | 2016-07-13 | 北京艾森思科技有限公司 | RAID card configuration information backup and recovery method and device |
| CN106843764A (en) * | 2017-01-22 | 2017-06-13 | 联想(北京)有限公司 | Soft raid-array creation method and system |
| CN107463336A (en) * | 2017-08-07 | 2017-12-12 | 郑州云海信息技术有限公司 | The processing method and system that solid magnetic disc fails in a kind of SSD cachings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025702A (en) * | 2006-02-17 | 2007-08-29 | 深圳奇峰创智科技有限公司 | Method for automatic backup using computer network |
| US20080250269A1 (en) * | 2007-04-05 | 2008-10-09 | Jacob Cherian | System and Method for Improving Rebuild Speed Using Data in Disk Block |
| CN101593083A (en) * | 2008-05-26 | 2009-12-02 | 联想(北京)有限公司 | Device, computing machine and method that computer profile is protected and recovered |
-
2012
- 2012-04-20 CN CN2012101164052A patent/CN102662877A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025702A (en) * | 2006-02-17 | 2007-08-29 | 深圳奇峰创智科技有限公司 | Method for automatic backup using computer network |
| US20080250269A1 (en) * | 2007-04-05 | 2008-10-09 | Jacob Cherian | System and Method for Improving Rebuild Speed Using Data in Disk Block |
| CN101593083A (en) * | 2008-05-26 | 2009-12-02 | 联想(北京)有限公司 | Device, computing machine and method that computer profile is protected and recovered |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500136A (en) * | 2013-10-18 | 2014-01-08 | 浪潮电子信息产业股份有限公司 | Method for protecting computer hardware data in cloud system |
| CN105760255A (en) * | 2016-02-14 | 2016-07-13 | 北京艾森思科技有限公司 | RAID card configuration information backup and recovery method and device |
| CN105760255B (en) * | 2016-02-14 | 2019-01-22 | 北京艾森思科技有限公司 | A kind of backup and reduction method and apparatus of RAID card configuration information |
| CN106843764A (en) * | 2017-01-22 | 2017-06-13 | 联想(北京)有限公司 | Soft raid-array creation method and system |
| CN106843764B (en) * | 2017-01-22 | 2020-02-21 | 联想(北京)有限公司 | Method and system for creating soft independent redundant disk array |
| CN107463336A (en) * | 2017-08-07 | 2017-12-12 | 郑州云海信息技术有限公司 | The processing method and system that solid magnetic disc fails in a kind of SSD cachings |
| CN107463336B (en) * | 2017-08-07 | 2020-09-22 | 苏州浪潮智能科技有限公司 | Method and system for processing failure of solid state disk in SSD (solid state disk) cache |
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Application publication date: 20120912 |