CN103019893A - Multi-disk fault-tolerant two-dimensional hybrid disk RAID4 system architecture and read-write method thereof - Google Patents
Multi-disk fault-tolerant two-dimensional hybrid disk RAID4 system architecture and read-write method thereof Download PDFInfo
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Abstract
The invention discloses a multi-disk fault-tolerant two-dimensional hybrid disk RAID4 (Redundant Access Independent Disk 4) system and a system architecture thereof. The system comprises an RAID4 controller and disk arrays, wherein the disk arrays comprise a magnetic disk array and a solid hard disk taken as a verification disk; the magnetic disk array and the solid hard disk form a two-dimensional array structure; and a buffer memory module and an XOR module are additionally arranged in the solid hard disk, wherein the buffer memory module is used for buffering of data, and the XOR module is achieved in the field programmable logic gate array of the solid hard disk and used for calculating RAID4 verification data, so as to effectively accelerate the processing speed of calculation. According to the invention, an IO (Input/Output) operation process is simplified and the two-dimensional hybrid disk RAID4 system architecture taking the solid hard disk as the verification disk is established, so that errors of at least three disks can be corrected, the verification and the calculation of data is lucidly completed, and meanwhile IO operand of reading/writing the verification disk can be reduced to a great extent, the bottleneck of the reading/writing of the verification disk is effectively eliminated, and the performance of the system is improved.
Description
Technical field
The invention belongs to technical field of memory, more specifically, relate to a kind of polydisc fault-tolerant two-dimentional mixing pan RAID4 system architecture and reading/writing method thereof.
Background technology
Raid-array (Redundant Access Independent Disk is called for short RAID) technology is widely used in the data storage as a kind of proven technique.The RAID technology has seven kinds of basic RAID ranks from RAID0 to RAID6, and different ranks is representing different memory properties, data security and carrying cost.Wherein RAID4 grows up on the basis of RAID3.As shown in Figure 1; in the RAID4 pattern; disk array comprises the disk (abbreviation data disks) of N storage data and the disk (abbreviation check disk) that is specifically designed to store parity information; its band (Datastriping) is the basis; after the file data piecemeal, write in the data disks; to in other data disks with this data block same disc in all data blocks of position calculate their parity values (xor operation is finished); message block that is formed by parity values of final formation; and it is write check disk, this is called as data protection (Data guarding).It can only tolerate that a disk breaks down, and the fault-tolerant ability that how to improve disk array is the problem that we will solve.In addition, because that the per second of disk is processed the IO functipnal capability is limited, new read-write requests must wait for that old read-write could process after finishing.That is to say for the RAID4 system, can only realize concurrent to the data disks read operation, can not realize the concurrent of array write operation.Simultaneously, in order effectively to solve large-scale storage systems when polydisc lost efficacy, the RAID structure of one dimension can only be held an intertwining situation.How to solve the bottleneck of check disk and the problem that polydisc lost efficacy, thereby the performance of raising array and the reliability of array are the problems that we will solve.In addition, along with the widespread use of disk array high low side in every field, the energy consumption of disk array also becomes the problem of extensive concern, and how reducing the array energy consumption is another problem that we will solve equally.
Summary of the invention
Defective for prior art, the object of the present invention is to provide the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a kind of polydisc, the present invention is by simplifying the IO operating process, setting up the two-dimentional mixing pan RAID4 architectural framework of solid state hard disc as check disk, at least can correct 3 intertwining mistakes, and the transparent data check of finishing calculates, significantly reduce simultaneously the IO operand of read-write check dish, effectively eliminate the read-write bottleneck of check disk, improve the performance of system.
For achieving the above object, the invention provides the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a kind of polydisc, comprise RAID4 controller and dish battle array, dish battle array comprises disk array and as the solid state hard disc of check disk, disk array and solid state hard disc form two-dimensional array structure, set up cache module and XOR module in the controller of solid state hard disc, cache module is used for the buffering of data, the XOR module is to realize in the field programmable gate array in solid state hard disc, for the treatment of the calculating of RAID4 checking data.
The present invention also provides the read operation method of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a kind of polydisc, may further comprise the steps:
(1) step 701, the processing threads of RAID controller core core module at first takes out read request from the scsi command formation;
(2) step 702, to this read request read address space according to the row major principle, band is split, the band that belongs to same read request is with queue management;
(3) step 703, the processing threads of RAID controller is the read command of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 704 receives the order of read data band 1, data band 2, data band 3, and respectively from data disks 1, data disks 2 is read band 1, band 2, band 3 in the data disks 3, and strip data is buffered in the cache module;
(5) step 705 is transmitted host side by DMA.
The present invention also provides the write operation method of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a kind of polydisc, may further comprise the steps:
(1) step 801, the processing threads of RAID controller core core module at first takes out this write order from the scsi command formation;
(2) step 802 splits according to band the address space of reading of this write order, belong to the longitudinal band of same write order and laterally band respectively with queue management;
(3) step 803, the processing threads of RAID controller is the write order of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 804 is the newly-increased custom command " XOR is write " of the special solid state hard disc in the RAID4 system;
(5) step 805 is carried out XOR in the XOR module
(wherein data P is original checking data) obtains new checking data band P ';
(6) step 806 writes band P ' in the solid state hard disc as check disk again, simultaneously band 1 ' is write in the corresponding data disks.
In the step (4), for write operation, be that the data that adopt new data and old data to produce after the internal logic of check disk carries out XOR write.
By the above technical scheme that the present invention conceives, compared with prior art, the present invention has following beneficial effect:
1, owing to adopted two-dimensional array structure, effectively solves the problem that polydisc lost efficacy, improved significantly the reliability of RAID4 system.
2, owing to adopted solid state hard disc as check disk, significantly improve the response speed of RAID4 system, also reduced the power consumption of system simultaneously.
3, realize owing to the checksum update module in traditional RAID controller is placed in the solid state hard disc, significantly reduced the IO operand of monitor desk when reading and writing data, greatly improved the performance of system.
4, realize in solid state hard disc owing to the checksum update module, greatly reduce RAID controller's design difficulty and cost.
Description of drawings
Fig. 1 is existing RAID4 system topology synoptic diagram.
Fig. 2 is the fault-tolerant two-dimentional mixing pan RAID4 system architecture topological structure synoptic diagram of polydisc of the present invention.
Fig. 3 is the one-piece construction synoptic diagram of existing RAID4 system.
Fig. 4 is the one-piece construction synoptic diagram of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of polydisc of the present invention.
Fig. 5 is the solid state hard disc one-piece construction synoptic diagram among the present invention.
Fig. 6 is the fault-tolerant two-dimentional mixing pan RAID4 error-detection error-correction synoptic diagram of the polydisc among the present invention.
Fig. 7 is the process flow diagram of the read operation method of the fault-tolerant two-dimentional mixing pan RAID4 system of polydisc of the present invention.
Fig. 8 is the process flow diagram of the write operation method of the fault-tolerant two-dimentional mixing pan RAID4 system of polydisc of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, 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.
Fig. 2 is the topological structure synoptic diagram of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of polydisc of the present invention, and traditional mechanical disk 201 and solid-state disk of the present invention 202 consist of a two dimensional topology.
The fault-tolerant two-dimentional mixing pan RAID4 system of polydisc provided by the invention as shown in Figure 4, the same with existing RAID4 system, include RAID4 controller 403 and dish battle array, its mid-game battle array comprises disk array 404 and as the solid state hard disc 405 of check disk, they form a two-dimensional array structure.Host side server 401,302 links to each other with RAID controller 403 with iSCSI passage 407 by optical-fibre channel 406.Comparison diagram 3 can find that the system among the present invention is different from the RAID4 system of prior art, and the two-dimensional array structure that the present invention adopts has high fault tolerance, minimumly can tolerate that three disks break down simultaneously.As shown in Figure 6, the worst situation is that three out of order disks have been lined up cruciform.Wherein label 601 is out of order disk, and 602 is normal disk, and 603 is the solid state hard disc check disk that uses among the present invention.When finding to have disk to break down, because the symmetry of parity checking, can be first according to check disk c1 and other recovering disk data disks 01 of 1 row disk, then recover disk 10 according to check disk r1 and other words of 1 row by data, recover disk 00 according to check disk c0 or r0 at last, the assurance data are not lost.
Solid state hard disc among the present invention has the function of simplifying the IO operation in addition.As shown in Figure 5, improved solid state hard disc is to have added two functional modules in the solid-state hard disk controller of existing structure: cache module (Data Buffer) 4093 and XOR module 4091, wherein cache module 4093 is except the buffering as data, the life problems of writing owing to solid state hard disc, usability is buffer memory hardware and the more excellent strategy of writing preferably, can reduce the flash media of solid state hard disc write number of times (at main frame to identical address repeatedly during write operation, can in buffer memory, finally be merged into one and operate and send to flash media), thus the life-span of prolongation solid state hard disc.XOR module 4091 is to change in the field programmable gate array in solid state hard disc and realizing originally being arranged on checksum update module in the RAID controller in addition, processed originally processing to change in the solid-state hard disk controller at the data XOR that this layer of RAID controller carries out, the benefit of doing like this is to reduce the IO operand that produces because upgrading checking data between RAID controller and the solid state hard disc, to improve the entire system performance.Because in the RAID controller during calculation check, original check information need to read back first, and calculate to generate new check information with the data of new data writing dish, therefore calculation check can be avoided unnecessary data transfer operation in check disk, the maximum capacity of performance IO interface, thereby the overall performance of raising system.
The below sets forth the read-write operation method of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of polydisc of the present invention.
As shown in Figure 7, the read operation method of the two-dimentional mixing pan RAID4 system that polydisc of the present invention is fault-tolerant is with SCSI(Small Computer System Interface, small computer system interface) agreement is example, may further comprise the steps:
(1) step 701, the processing threads of RAID controller core core module at first takes out read request from the scsi command formation;
(2) step 702, to this read request read address space according to the row major principle, band is split, the band that belongs to same read request is with queue management;
(3) step 703, the processing threads of RAID controller is the read command of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 704 receives the order of read data band 1, data band 2, data band 3, and respectively from data disks 1, data disks 2 is read band 1, band 2, band 3 in the data disks 3, and strip data is buffered in the cache module;
(5) step 705 is transmitted host side by DMA.
As shown in Figure 8, the write operation method of the fault-tolerant two-dimentional mixing pan RAID4 system of polydisc of the present invention may further comprise the steps:
(1) step 801, the processing threads of RAID controller core core module at first takes out this write order from the scsi command formation;
(2) step 802 splits according to band the address space of reading of this write order, belong to the longitudinal band of same write order and laterally band respectively with queue management;
(3) step 803, the processing threads of RAID controller is the write order of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 804 is the newly-increased custom command " XOR is write " of the special solid state hard disc in the RAID4 system;
(5) step 805 is carried out XOR in the XOR module
(wherein data P is original checking data) obtains new checking data band P ';
(6) step 806 writes band P ' in the solid state hard disc as check disk again, simultaneously band 1 ' is write in the corresponding data disks.
The benefit of bringing like this has 2:
(1) the IO operand that is a half need not with the old data reading in the check disk to the RAID controller, be done xor operation with new data and afterwards the result be write in the RAID controller;
(2) the 2nd, for the RAID controller, the command process comparing class that XOR is write is similar to write operation, because the existence of verification solid state hard disc buffer memory, as long as buffer memory is discontented, the IO operation just can not blocked, and can obtain the very little IO response time.
Those skilled in the art will readily understand; the above only is preferred embodiment of the present invention; not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. two-dimentional mixing pan RAID4 system architecture that polydisc is fault-tolerant, comprise RAID4 controller and dish battle array, dish battle array comprises disk array and as the solid state hard disc of check disk, it is characterized in that, disk array and solid state hard disc form the two-dimensional array architecture, set up cache module and XOR module in the controller of solid state hard disc, and cache module is used for the buffering of data, the XOR module is to realize in the field programmable gate array in solid state hard disc, for the treatment of the calculating of RAID4 checking data.
2. the read operation method of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a polydisc claimed in claim 1 is characterized in that, may further comprise the steps:
(1) step 701, the processing threads of RAID controller core core module at first takes out read request from the scsi command formation;
(2) step 702, to this read request read address space according to the row major principle, band is split, the band that belongs to same read request is with queue management;
(3) step 703, the processing threads of RAID controller is the read command of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 704 receives the order of read data band 1, data band 2, data band 3, and respectively from data disks 1, data disks 2 is read band 1, band 2, band 3 in the data disks 3, and strip data is buffered in the cache module;
(5) step 705 is transmitted host side by DMA.
3. the write operation method of the fault-tolerant two-dimentional mixing pan RAID4 system architecture of a polydisc claimed in claim 1 is characterized in that, may further comprise the steps:
(1) step 801, the processing threads of RAID controller core core module at first takes out this write order from the scsi command formation;
(2) step 802 splits according to band the address space of reading of this write order, belong to the longitudinal band of same write order and laterally band respectively with queue management;
(3) step 803, the processing threads of RAID controller is the write order of communicating by letter between destination end of each banded structure and the cache module, and order is sent to cache module;
(4) step 804 is the newly-increased custom command " XOR is write " of the special solid state hard disc in the RAID4 system;
(5) step 805 is carried out XOR in the XOR module
(wherein data P is original checking data) obtains new checking data band P ';
(6) step 806 writes band P ' in the solid state hard disc as check disk again, simultaneously band 1 ' is write in the corresponding data disks.
4. write operation method according to claim 3 is characterized in that, in the step (4), for write operation, is that the data that adopt new data and old data to produce after the internal logic of check disk carries out XOR write.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488432A (en) * | 2013-09-16 | 2014-01-01 | 哈尔滨工程大学 | Hybrid disk array, deferred write verification method for hybrid disk array, and data recovery method for hybrid disk array |
| CN103761058A (en) * | 2014-01-23 | 2014-04-30 | 天津中科蓝鲸信息技术有限公司 | RAID1 and RAID4 hybrid structure network storage system and method |
| CN104461926A (en) * | 2014-11-27 | 2015-03-25 | 记忆科技(深圳)有限公司 | Method for protecting solid state disk data based on two-dimensional RAIDs |
| CN104750433A (en) * | 2015-03-26 | 2015-07-01 | 浪潮集团有限公司 | Cache design method based on SCST |
| CN106021034A (en) * | 2016-05-11 | 2016-10-12 | 华中科技大学 | Encoding optimization method for tolerating faults of multiple devices and sectors |
| CN106293990A (en) * | 2016-08-10 | 2017-01-04 | 华中科技大学 | A kind of RAID method based on batch write check |
| CN108595269A (en) * | 2018-04-26 | 2018-09-28 | 北京腾凌科技有限公司 | A kind of data processing method, command generating device and data read-write equipment |
| CN109933547A (en) * | 2019-01-29 | 2019-06-25 | 山东华芯半导体有限公司 | The passive accelerator of RAID and accelerated method in a kind of SSD master control |
| CN117311646A (en) * | 2023-11-29 | 2023-12-29 | 苏州元脑智能科技有限公司 | Solid state disk configuration management method and device, computer equipment and storage medium |
| CN117389481A (en) * | 2023-12-08 | 2024-01-12 | 鹏钛存储技术(南京)有限公司 | Method for realizing XOR acceleration by solid state disk |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172321A1 (en) * | 2002-03-11 | 2003-09-11 | Wolin Dale Haddon | System and methods for fault path testing through automated error injection |
| CN101923501A (en) * | 2010-07-30 | 2010-12-22 | 华中科技大学 | Disk array multi-level fault tolerance method |
| CN102122235A (en) * | 2011-01-24 | 2011-07-13 | 武汉固捷联讯科技有限公司 | RAID4 (redundant array of independent disks) system and data reading and writing method thereof |
-
2012
- 2012-11-16 CN CN201210464825XA patent/CN103019893A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172321A1 (en) * | 2002-03-11 | 2003-09-11 | Wolin Dale Haddon | System and methods for fault path testing through automated error injection |
| CN101923501A (en) * | 2010-07-30 | 2010-12-22 | 华中科技大学 | Disk array multi-level fault tolerance method |
| CN102122235A (en) * | 2011-01-24 | 2011-07-13 | 武汉固捷联讯科技有限公司 | RAID4 (redundant array of independent disks) system and data reading and writing method thereof |
Cited By (17)
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|---|---|---|---|---|
| CN103488432B (en) * | 2013-09-16 | 2017-05-24 | 哈尔滨工程大学 | Hybrid disk array, deferred write verification method for hybrid disk array, and data recovery method for hybrid disk array |
| CN103488432A (en) * | 2013-09-16 | 2014-01-01 | 哈尔滨工程大学 | Hybrid disk array, deferred write verification method for hybrid disk array, and data recovery method for hybrid disk array |
| CN103761058A (en) * | 2014-01-23 | 2014-04-30 | 天津中科蓝鲸信息技术有限公司 | RAID1 and RAID4 hybrid structure network storage system and method |
| CN103761058B (en) * | 2014-01-23 | 2016-08-17 | 天津中科蓝鲸信息技术有限公司 | RAID1 and RAID4 mixed structure network store system and method |
| CN104461926A (en) * | 2014-11-27 | 2015-03-25 | 记忆科技(深圳)有限公司 | Method for protecting solid state disk data based on two-dimensional RAIDs |
| CN104750433A (en) * | 2015-03-26 | 2015-07-01 | 浪潮集团有限公司 | Cache design method based on SCST |
| CN106021034A (en) * | 2016-05-11 | 2016-10-12 | 华中科技大学 | Encoding optimization method for tolerating faults of multiple devices and sectors |
| CN106293990B (en) * | 2016-08-10 | 2019-06-07 | 华中科技大学 | A kind of redundant array of independent disks reading/writing method based on batch write check |
| CN106293990A (en) * | 2016-08-10 | 2017-01-04 | 华中科技大学 | A kind of RAID method based on batch write check |
| CN108595269A (en) * | 2018-04-26 | 2018-09-28 | 北京腾凌科技有限公司 | A kind of data processing method, command generating device and data read-write equipment |
| CN108595269B (en) * | 2018-04-26 | 2020-10-09 | 北京腾凌科技有限公司 | Data processing method, instruction generation device and data read-write device |
| CN109933547A (en) * | 2019-01-29 | 2019-06-25 | 山东华芯半导体有限公司 | The passive accelerator of RAID and accelerated method in a kind of SSD master control |
| CN109933547B (en) * | 2019-01-29 | 2023-03-10 | 山东华芯半导体有限公司 | RAID passive acceleration device and method in SSD master control |
| CN117311646A (en) * | 2023-11-29 | 2023-12-29 | 苏州元脑智能科技有限公司 | Solid state disk configuration management method and device, computer equipment and storage medium |
| CN117311646B (en) * | 2023-11-29 | 2024-02-23 | 苏州元脑智能科技有限公司 | Solid state disk configuration management method and device, computer equipment and storage medium |
| CN117389481A (en) * | 2023-12-08 | 2024-01-12 | 鹏钛存储技术(南京)有限公司 | Method for realizing XOR acceleration by solid state disk |
| CN117389481B (en) * | 2023-12-08 | 2024-02-09 | 鹏钛存储技术(南京)有限公司 | Method for realizing XOR acceleration by solid state disk |
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Application publication date: 20130403 |