CN106874151A - A kind of method and device of synchronization caching - Google Patents
A kind of method and device of synchronization caching Download PDFInfo
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- CN106874151A CN106874151A CN201710048898.3A CN201710048898A CN106874151A CN 106874151 A CN106874151 A CN 106874151A CN 201710048898 A CN201710048898 A CN 201710048898A CN 106874151 A CN106874151 A CN 106874151A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2017—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where memory access, memory control or I/O control functionality is redundant
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Abstract
The present invention relates to technical field of memory, the method and device of synchronization caching more particularly in double control storage system.The present invention discloses a kind of method of synchronization caching, is included in default third party's caching in double control storage system；Whether the controller that monitoring judges in double control storage system delays machine, and the machine if a square controller is delayed enables third party and caches；If it is not, continuing to monitor；Third party caches and normal controller synchronization caching.Invention additionally discloses a kind of device of synchronization caching, including, presetting module, for presetting third party's caching in double control storage system；Whether judge module, delay machine for monitoring the controller for judging in double control storage system, and the machine if a square controller is delayed enables third party and caches；If it is not, continuing to monitor；Synchronization module, for third party's caching and normal controller synchronization caching.The present invention is realized improving double control one controller of storage system and is delayed the shortcoming that machine another controller cache closes by default third party's caching mechanism.
Description
Technical field
The present invention relates to the technical field for storing, the method and dress of synchronization caching more particularly in double control storage system
Put.
Background technology
It is being engaged in the middle of the research and design of storage and test, in gradually recognizing double control storage system, when there is one
Controller is delayed after machine, and the caching of another controller will be closed, and so read and write data directly will read from the hard disk of rear end,
It is very big to performance impact.In consideration of it, need a kind of new strategy improve one controller of above-mentioned double control to delay machine and force by
The shortcoming that another controller cache is closed.
The content of the invention
It is an object of the present invention to provide a kind of method and device of synchronization caching, the present invention caches machine by default third party
System, realizes that improving double control one controller of storage system delays machine and force the shortcoming for closing another controller cache.
To achieve these goals, the present invention uses following technical scheme：
A kind of method of synchronization caching, comprises the following steps：
Third party's caching is preset in double control storage system；
Whether the controller that monitoring judges in double control storage system delays machine, and the machine if a square controller is delayed enables third party slow
Deposit；If it is not, continuing to monitor；
Third party caches and normal controller synchronization caching.
Further, third party is cached with after normal controller synchronization caching, is also included, repairs the controller of machine of delaying,
Controller restarting after recovery.
Further, the controller of machine of delaying is being repaired, after the controller restarting after reparation, third party's caching will be slow
Deposit data is synchronized to the caching of the controller after repairing.
Further, the controller of machine of delaying is being repaired, after the controller restarting after reparation, being cached in third party will
After the caching of the data cached controller being synchronized to after repairing, also include, after the completion of synchronization caching, third party's caching is offline.
Further, third party caching only delay in the case of machine wherein by a controller, by another controller
Recognize and enable；Do not enabled in the case of other.
Further, third party's caching refers to one piece of disk in SSD disks, Flash cards or disk array.
Further, total capacity of the third party's buffer memory capacity not less than single controller.
Further, what two controllers of third party's caching in double control storage system can be accessed normally is public
Region.
A kind of device of synchronization caching, including：
Presetting module, for presetting third party's caching in double control storage system；
Whether monitoring modular, delay machine for monitoring the controller for judging in double control storage system, the machine if a square controller is delayed,
Enable third party's caching；If it is not, continuing to monitor；
Synchronization module, for third party's caching and normal controller synchronization caching.
Further, the device also includes repair module, the controller for repairing machine of delaying；
Preferably, the device also includes recovery module, is cached the data cached controller being synchronized to after recovering for third party
Caching；
Preferably, the device also includes downline module, and after the completion of synchronization caching, third party's caching is offline.
Compared with prior art, the present invention improves double control storage system one by default third party's caching mechanism
Controller is delayed machine and forces the shortcoming for closing another controller cache, specifically have the beneficial effect that it is following some：
1st, the design of third party's caching mechanism is simple, can be one piece of disk in SSD disks, Flash cards, disk array；
2nd, third party's caching mechanism a, it is to avoid controller is delayed machine, the caching in the case of another controller single control is closed, number
According to the situation of direct rule, readwrite performance is improve；
3rd, third party's caching mechanism, does not work in dual controller normal work, is only just risen after a controller delays machine
The machining function of third party's caching, reduces the switching time of data flow；
4th, by the caching of the data cached controller for being synchronized to recovery, reduce controller synchronization caching causes data to third party's caching
There is interruption.
Brief description of the drawings
Fig. 1 is a kind of one of schematic flow sheet of method of synchronization caching of the invention.
Fig. 2 is the two of the schematic flow sheet of the method for a kind of synchronization caching of the invention.
Fig. 3 is a kind of structural representation of the device of synchronization caching of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail：
Embodiment 1
Fig. 1 is refer to, the present embodiment provides a kind of method of synchronization caching, comprises the following steps：
Step S101, presets third party's caching in double control storage system；
Whether step S102, the controller that monitoring judges in double control storage system delays machine；
Step S103 a, square controller is delayed machine, then enable third party's caching；If it is not, continuing to monitor；
Step S104, third party's caching and normal controller synchronization caching.
Embodiment 2
Fig. 2 is refer to, the method that the present embodiment provides another synchronization caching is comprised the following steps：
Step S201, presets third party's caching in double control storage system；
Third party's caching refers to one piece of disk in SSD disks, Flash cards or disk array；Third party's buffer memory capacity
Not less than the total capacity of single controller；Two controllers of third party's caching in double control storage system being capable of just frequentation
The public domain asked；
Whether step S202, the controller that monitoring judges in double control storage system delays machine；
Dual controller in the double control storage system can all have arbitration disk to serve as judge, be for the delay judgement of machine of controller
Judged by another controller, such as the internal memory of two controllers is synchronous under normal circumstances, once one controls
Device is delayed machine, and another controller will be unable to carry out internal memory synchronization；
Step S203, judges whether another controller delays machine；
Step S204, normal controller enables third party's caching；
A machine once controller is delayed, another controller be will be unable to carry out internal memory synchronization, and the controller of machine of not delaying so is opened
Cached with the third party.Third party caching only delay in the case of machine wherein by a controller, by another controller
Recognize and enable；Do not enabled in the case of other；
Step S205, third party's caching and normal controller synchronization caching；
Third party's caching plays a part of synchronization counterpart caching；
Step S206, repairs the controller of machine of delaying；
Step S207, the controller restarting after recovery；
Step S208, is repairing the controller of machine of delaying, and after the controller restarting after reparation, third party's caching will cache number
According to the caching of the controller being synchronized to after repairing；
Step S209, after the completion of synchronization caching, third party's caching is offline.
Embodiment 3
Fig. 3 is refer to, the present embodiment provides a kind of device of synchronization caching, including：
Presetting module 301, for presetting third party's caching in double control storage system；
Whether judge module 302, delay machine, for monitoring the controller for judging in double control storage system if a square controller is delayed
Machine, then enable third party's caching；If it is not, continuing to monitor；
Synchronization module 303, for third party's caching and normal controller cache synchronization；
Repair module 304, the controller for repairing machine of delaying；
Recovery module 305, caches the caching of the data cached controller being synchronized to after recovering for third party；
Downline module 306, after the completion of synchronization caching, third party's caching is offline.
In the present invention relates to double control storage system, after a controller of storage system delays machine, another control
Device will not factor data consistency protection and cause controller cache itself close, due to caching close data can direct rule this
Sample causes storage performance to decline and need switching time；And after the controller of the machine of delaying gets up, needed between two controllers same
Step caching, causes also to have switching time.Increase third party's caching mechanism used herein, will make one of them in double control
Controller delays machine only one of which controller when running, the state still opened of caching, without causing another controller cache
The situation of closing, so that performance will not cause the result of hydraulic performance decline because a controller delays machine.
Illustrated above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of method of synchronization caching, it is characterised in that including：
Third party's caching is preset in double control storage system；
Whether the controller that monitoring judges in double control storage system delays machine, and the machine if a square controller is delayed enables third party slow
Deposit；If it is not, continuing to monitor；
Third party caches and normal controller synchronization caching.
2. the method for a kind of synchronization caching according to claim 1, it is characterised in that in third party's caching and normal control
After device synchronization caching, also include, repair the controller of machine of delaying, the controller restarting after reparation.
3. the method for a kind of synchronization caching according to claim 2, it is characterised in that repairing the controller of machine of delaying, repairing
After controller restarting after multiple, also include, third party's caching is slow by the data cached controller being synchronized to after repairing
Deposit.
4. the method for a kind of synchronization caching according to claim 3, it is characterised in that will be data cached in third party's caching
After the caching of the controller being synchronized to after repairing, also include, after the completion of synchronization caching, third party's caching is offline.
5. the method for a kind of synchronization caching according to claim 1, it is characterised in that third party's caching is only wherein
One controller is delayed in the case of machine, is recognized and is enabled by another controller；Do not enabled in the case of other.
6. the method for a kind of synchronization caching according to claim 1, it is characterised in that third party's caching refers to SSD
One piece of disk in disk, Flash cards or disk array.
7. the method for a kind of synchronization caching according to claim 1, it is characterised in that third party's buffer memory capacity is not small
In the total capacity of single controller.
8. the method for a kind of synchronization caching according to claim 1, it is characterised in that third party's caching is located at dual control
The public domain that two controllers in storage system processed can be accessed normally.
9., based on a kind of device of a kind of synchronization caching of the method for synchronization caching of any one described in claim 1 ~ 8, it is special
Levy and be, including：
Presetting module, for presetting third party's caching in double control storage system；
Whether judge module, delay machine for monitoring the controller for judging in double control storage system, the machine if a square controller is delayed,
Enable third party's caching；If it is not, continuing to monitor；
Synchronization module, for third party's caching and normal controller synchronization caching.
10. the device of a kind of synchronization caching according to claim 9, it is characterised in that also include：Repair module, is used for
Repair the controller of machine of delaying；
Preferably, also include：Recovery module, for third party's caching delaying the data cached controller being synchronized to after recovering
Deposit；
Preferably, also include：Downline module, after the completion of synchronization caching, third party's caching is offline.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101576837A (en) * | 2009-06-12 | 2009-11-11 | 成都市华为赛门铁克科技有限公司 | Storage control system and method |
| CN102567227A (en) * | 2012-01-13 | 2012-07-11 | 北京邦诺存储科技有限公司 | Double-controller memory system and method for sharing cache equipment |
| CN103605618A (en) * | 2013-11-20 | 2014-02-26 | 浪潮电子信息产业股份有限公司 | Non-write-back mirror image and direct write switching method for cache mirror image system |
| CN105389123A (en) * | 2015-10-16 | 2016-03-09 | 浪潮(北京)电子信息产业有限公司 | Storage management method and system based on dual controllers |
| CN105573857A (en) * | 2014-10-10 | 2016-05-11 | 北京计算机技术及应用研究所 | Method and system for buffering mirror image by multi-control disk array |
-
2017
- 2017-01-23 CN CN201710048898.3A patent/CN106874151A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576837A (en) * | 2009-06-12 | 2009-11-11 | 成都市华为赛门铁克科技有限公司 | Storage control system and method |
| CN102567227A (en) * | 2012-01-13 | 2012-07-11 | 北京邦诺存储科技有限公司 | Double-controller memory system and method for sharing cache equipment |
| CN103605618A (en) * | 2013-11-20 | 2014-02-26 | 浪潮电子信息产业股份有限公司 | Non-write-back mirror image and direct write switching method for cache mirror image system |
| CN105573857A (en) * | 2014-10-10 | 2016-05-11 | 北京计算机技术及应用研究所 | Method and system for buffering mirror image by multi-control disk array |
| CN105389123A (en) * | 2015-10-16 | 2016-03-09 | 浪潮(北京)电子信息产业有限公司 | Storage management method and system based on dual controllers |
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