CN102982836A - Method for improving reliability of solid state disk and solid state disk of method - Google Patents
Method for improving reliability of solid state disk and solid state disk of method Download PDFInfo
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- CN102982836A CN102982836A CN2012104750652A CN201210475065A CN102982836A CN 102982836 A CN102982836 A CN 102982836A CN 2012104750652 A CN2012104750652 A CN 2012104750652A CN 201210475065 A CN201210475065 A CN 201210475065A CN 102982836 A CN102982836 A CN 102982836A
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Abstract
The invention belongs to the technical field of storage and provides a method for improving reliability of a solid state disk and the solid state disk of the method. The method comprises the steps of detecting the working temperature of the solid state disk; and controlling the operation of the solid state disk according to the working temperature. Thus, the method can control the working temperature of the solid state disk effectively, and the reliability of the solid state disk can be enhanced.
Description
Technical field
The present invention relates to technical field of memory, relate in particular to a kind of method and solid state hard disc thereof that strengthens the solid state hard disc reliability.
Background technology
SSD (Solid State Disk, solid state hard disc) adopts solid-state electronic storage chip array and the hard disk made, is comprised of control module and storage unit (FLASH chip).Be widely used in the fields such as military, vehicle-mounted, industry control, video monitoring, network monitoring, the network terminal, electric power, medical treatment, aviation etc., navigator.It is fast that flash memory in the solid state hard disc possesses access speed, noiselessness, and the little characteristics of dispelling the heat are widely used in storage market.Because there are some restrictions in the physical medium characteristics of flash memory, the operating ambient temperature of flash memory;-40 ℃～70 ℃, storage temperature :-50 ℃～80 ℃.Flash memory self working temperature can not surpass 50 ℃ usually, if but surpass and work long hours flash memory is still had certain influence.This impact may cause the SSD controller or the flash chip burns out.As for the reason that the SSD temperature rises, be that SSD running environment of living in determines on the one hand; Be that the flash medium determines on the other hand, the more function of having write data consumes causes flash chip temperature and controller temperature to rise, and after temperature surpassed warning line, these devices may for good and all be damaged.But the method that effective control solid state hard disc working temperature is not arranged in the prior art.
In summary, existing solid state hard disc obviously exists inconvenience and defective in actual use, so be necessary to be improved.
Summary of the invention
For above-mentioned defective, the object of the present invention is to provide a kind of method and solid state hard disc thereof that strengthens the solid state hard disc reliability, effectively to control the working temperature of solid state hard disc, strengthened the reliability of solid state hard disc.
To achieve these goals, the invention provides a kind of method that strengthens the solid state hard disc reliability, described method comprises the steps:
Detect the working temperature of solid state hard disc;
According to described working temperature, control the work of described solid state hard disc.
According to described method, comprise before the step of the working temperature of described detection solid state hard disc:
The threshold value of the working temperature of default described solid state hard disc;
The default cycle of detecting the working temperature of described solid state hard disc.
According to described method, the step of the working temperature of described detection solid state hard disc comprises:
When the described cycle arrives, detect the working temperature of described solid state hard disc;
Described according to described working temperature, the step of controlling the work of described solid state hard disc comprises:
When the temperature that detects described solid state hard disc reaches default threshold value, increase described solid state hard disc fan revolution and/or reduce the temperature of refrigeratory; And/or
When the temperature that detects described solid state hard disc reaches default threshold value, the read-write speed of slowing down described solid state hard disc.
According to described method, described according to described working temperature, the step of controlling the work of described solid state hard disc also comprises:
Be reduced to described threshold value when following in the temperature that detects described solid state hard disc, recover the revolution of fan of described solid state hard disc and/or the temperature of described refrigeratory; And/or
Be reduced to described threshold value when following in the temperature that detects described solid state hard disc, recover the read-write speed of described solid state hard disc.
According to described method, when described temperature detecting described solid state hard disc reached default threshold value, the step of slowing down the read-write speed of described solid state hard disc comprised:
Receiving when writing instruction, reducing the degree of depth of said write instruction queue; And/or the frequency of the described instruction queue degree of depth of increase downward modulation.
In order to realize another goal of the invention of the present invention, the present invention also provides a kind of solid state hard disc, and described solid state hard disc comprises:
Detection module is for detection of the working temperature of solid state hard disc;
Control module is used for according to described working temperature, controls the work of described solid state hard disc.
According to described solid state hard disc, described solid state hard disc also comprises:
The first presetting module is for the threshold value of the working temperature of presetting described solid state hard disc;
The second presetting module is used for the default cycle of detecting the working temperature of described solid state hard disc.
According to described solid state hard disc, described detection module comprises:
The first detection sub-module is used for detecting the working temperature of described solid state hard disc when the described cycle arrives;
Described control module comprises:
The first control submodule is used for when the temperature that described the first detection sub-module detects described solid state hard disc reaches default threshold value, increase described solid state hard disc fan revolution and/or reduce the temperature of refrigeratory; And/or
The second control submodule is used for when the temperature that described the second detection sub-module detects described solid state hard disc reaches default threshold value the read-write speed of slowing down described solid state hard disc.
According to described solid state hard disc, described the first control submodule also is used for being reduced to described threshold value when following in the temperature that described the first detection sub-module detects described solid state hard disc, recovers the revolution of fan of described solid state hard disc and/or the temperature of described refrigeratory; And/or
Described the second control submodule also is used for being reduced to described threshold value when following in the temperature that described the first detection sub-module detects described solid state hard disc, recovers the read-write speed of described solid state hard disc.
According to described solid state hard disc, described the second control submodule is receiving when writing instruction, reduces the degree of depth of said write instruction queue; And/or increase writes the response time of instruction.
The present invention is by detecting the working temperature of solid state hard disc; Then according to described working temperature, control the work of described solid state hard disc; Guaranteed that solid state hard disc does not suffer damage.Concrete, add temperature sensor at solid state hard disc, when temperature surpasses the threshold values of definition, the server at notice solid state hard disc place, the rotating speed of increase fan; Simultaneously, solid-state hard disk controller control data writing speed is until solid state hard disc recovers normal temperature; Effectively protect solid state hard disc, strengthened the reliability of solid state hard disc.
Description of drawings
Fig. 1 is the structural representation of the solid state hard disc that provides of first embodiment of the invention;
Fig. 2 is the structural representation of the solid state hard disc that provides of second and third embodiment of the present invention;
Fig. 3 is a kind of method flow diagram that strengthens the solid state hard disc reliability that fourth embodiment of the invention provides;
Fig. 4 is the method flow diagram that the temperature superelevation of the solid state hard disc that provides of one embodiment of the invention is processed;
Fig. 5 is that the solid-state hard disk controller that one embodiment of the invention provides reduces the method flow diagram that writing rate is processed.
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.
Referring to Fig. 1, in the first embodiment of the present invention, provide a kind of solid state hard disc 100, solid state hard disc 100 comprises:
Detection module 10 is for detection of the working temperature of solid state hard disc 100;
In this embodiment, detect the working temperature of solid state hard disc by detection module 10.Then, control module 20 is according to the work of described working temperature control solid state hard disc 100.This detection module 10 can be temperature sensor.Can pass through to detect like this actual temperature of solid state hard disc 100, and then the real work of control solid state hard disc 100.Too high and cause the damage of solid state hard disc 100 with the working temperature that prevents solid state hard disc 100.
Referring to Fig. 2, in the second embodiment of the present invention, solid state hard disc 100 also comprises:
The first presetting module 30 is for the threshold value of the working temperature of presetting solid state hard disc 100;
The second presetting module 40 is used for the default cycle of detecting the working temperature of solid state hard disc 100.
In this embodiment, preset the threshold value of the working temperature of solid state hard discs 100 by the first presetting module 30; This threshold value is the temperature that solid state hard disc can work, for example 70 degrees centigrade.40 default cycles of detecting the working temperature of solid state hard disc 100 of the second presetting module.For example, the default cycle of detecting the working temperature of solid state hard disc 100 is to detect once in 1 minute.
Referring to Fig. 2, in the third embodiment of the present invention, detection module 10 comprises:
The first detection sub-module 11 is used for detecting the working temperature of solid state hard disc 100 when the described cycle arrives;
The first control submodule 21 is used for when the temperature that the first detection sub-module 11 detects solid state hard disc 100 reaches default threshold value, increase solid state hard disc 100 fan revolution and/or reduce the temperature of refrigeratory; And/or
The second control submodule 22 is used for when the temperature that the second detection sub-module 12 detects solid state hard disc 100 reaches default threshold value the read-write speed of slowing down solid state hard disc 100.
In this embodiment, when the first detection sub-module 11 arrives in each sense cycle, detect the working temperature of solid state hard disc 100.The first control submodule 21 will increase the revolution of fan of solid state hard disc 100 and/or the temperature of reduction refrigeratory when the temperature of solid state hard disc 100 reaches default threshold value; Can accelerate like this flowing of solid state hard disc 100 surrounding airs, and the reduction of temperature, the working temperature of solid state hard disc 100 can be reduced, assurance solid state hard disc 100 is avoided damaging.Concrete, the second control submodule 22 is receiving when writing instruction, reduces the degree of depth of said write instruction queue; And/or increase writes the response time of instruction.Can alleviate like this solid state hard disc 100 work loads, and then reach the purpose that reduces solid state hard disc 100 working temperatures.
In one embodiment of the invention, the first control submodule 21 also is used for being reduced to described threshold value when following in the temperature that the first detection sub-module 11 detects solid state hard disc 100, recovers the revolution of fan of solid state hard disc 100 and/or the temperature of described refrigeratory; And/or
The second control submodule 22 also is used for being reduced to described threshold value when following in the temperature that the first detection sub-module 11 detects solid state hard disc 100, recovers the read-write speed of described solid state hard disc 100.
In this embodiment, the temperature that the first control submodule 21 first detection sub-module 11 detect solid state hard disc 100 is reduced to described threshold value when following, can lower solid state hard disc 100 fan revolution and/or promote the temperature of described refrigeratory, recover running parameter under normal circumstances.The second control submodule 22 also will recover the read-write speed of described solid state hard disc 100 simultaneously.
In above-mentioned a plurality of embodiment, a plurality of modules of solid state hard disc 100 can be the software units that is built in solid state hard disc, hardware cell or software and hardware combining unit.
Referring to Fig. 3, in the fourth embodiment of the present invention, provide a kind of method that strengthens the solid state hard disc reliability, described method comprises the steps:
Among the step S301, detect the working temperature of solid state hard disc 100; This step is realized by detection module 10.
Among the step S302, according to described working temperature, control the work of described solid state hard disc 100; This step is realized by control module 20.
In this embodiment, for preventing solid state hard disc 100 excess Temperatures.Controller on the solid state hard disc 100 can regularly read Temperature numerical from temperature sensor, when this numerical value surpasses warning line, in time controls the related work of solid state hard disc 100, can reduce the temperature of solid state hard disc 100.
In the fifth embodiment of the present invention, before step S301, comprise: the threshold value of the working temperature of default described solid state hard disc; This step is realized by the first presetting module 30;
The default cycle of detecting the working temperature of described solid state hard disc; This step is realized by the second presetting module 40.
Preferably, described step S302 comprises:
When the described cycle arrives, detect the working temperature of solid state hard disc 100; This step is realized by the first detection sub-module 11.
Described according to described working temperature, the step of the work of control solid state hard disc 100 comprises:
When the temperature that detects solid state hard disc 100 reaches default threshold value, increase solid state hard disc 100 fan revolution and/or reduce the temperature of refrigeratory; And/or
When the temperature that detects solid state hard disc 100 reaches default threshold value, the read-write speed of slowing down solid state hard disc 100.
In this embodiment, can add temperature sensor at solid state hard disc 100, when temperature surpasses the threshold values of definition, the server at notice solid state hard disc 100 places, the rotating speed of increase fan; Simultaneously, solid state hard disc 100 drives (controller) control data writing speed, until solid state hard disc 100 recovers normal temperature.Effectively protect solid state hard disc 100, strengthened the reliability of solid state hard disc 100.Prevent solid state hard disc 100 excess Temperatures and cause device failure.
In one embodiment of the invention, solid state hard disc 100 controllers send the rotation speed of the fan information that increases to server; This message is organized according to the snmp protocol form, and server will increase rotation speed of the fan after receiving this information.Certainly also can adopt proprietary protocol.In addition, in fact server provides any interface, just sends " increase rotation speed of the fan " message according to this interface format to server.The controller of solid state hard disc 100 reduces writing speed.Be that the control module 20 of solid state hard disc 100 writes by the time-delay of various threshold values that IO returns or return busy to the host main frame, require main frame to reduce writing rate, namely reduce IO queue depth.
In one embodiment of the invention, described step S302 also comprises:
Be reduced to described threshold value when following in the temperature that detects solid state hard disc 100, recover the revolution of fan of solid state hard disc 100 and/or the temperature of described refrigeratory; This step is realized by the first control submodule 21; And/or
Be reduced to described threshold value when following in the temperature that detects solid state hard disc 100, recover the read-write speed of solid state hard disc 100; This step is realized by the second control submodule 22.
In addition, when the temperature that the second control submodule 22 detects solid state hard disc 100 in the first detection sub-module 11 reached default threshold value, the step of slowing down the read-write speed of solid state hard disc 100 comprised:
Receiving when writing instruction, reducing the degree of depth of said write instruction queue; And/or the frequency of the described instruction queue degree of depth of increase downward modulation.
Referring to Fig. 4, in one embodiment of the invention, provide individual the temperature superelevation treatment scheme of solid state hard disc, be described below:
Among the step S401, the controller of solid state hard disc 100 inquiry temperature;
Among the step S402, judge whether the temperature of solid state hard disc 100 surpasses warning line; Execution in step S403 then; Otherwise execution in step S405;
Among the step S403, send temperature warning information to server;
Among the step S404, controller reduces the writing speed of solid state hard disc 100;
Among the step S405, send cancellation temperature warning information to server;
Among the step S406, controller recovers normal IO to be processed.
In this embodiment, the controller of solid state hard disc 100 regularly, such as: the 8 seconds inquiry temperature sensors in interval after temperature surpasses warning line, send a warning message to server, this information is followed SNMP (SimpleNetwork Management Protocol, Simple Network Management Protocol) agreement, server are resolved this information after receiving information, then send to server firmware, server firmware strengthens rotation speed of the fan.IO speed is write in simultaneously solid state hard disc 100 controllers downward modulation.Do not surpass warning line when solid state hard disc 100 controllers detect the SSD temperature, send the cancellation fan to server and accelerate information, recover normal with Time Controller writing speed parameter.
Referring to Fig. 5, in one embodiment of the invention, provide solid-state hard disk controller to reduce the writing rate treatment scheme, be described below:
Among the step S501, the controller of solid state hard disc 100 receives the IO order;
Among the step S502, judge whether the IO order receive is write order, if not execution in step S503 then; If execution in step S504 then;
Among the step S503, the described IO order of normal process;
Among the step S504, adjust the queue depth of writing IO;
Among the step S505, write IO and return busy;
Among the step S506, adjust the control threshold value;
Among the step S507, control IO time-delay.
In this embodiment, after the controller of solid state hard disc 100 is receiving IO, judge that first whether IO is for writing IO, if, the controller of solid state hard disc 100 is adjusted writing speed control parameter so, first according to a Fixed Time Interval, such as 5 seconds down command queue depths; Namely use the maximum IO concurrent number that issues to controller, queue depth is reduced by half at every turn, until queue depth is 1.During this period, if do not receive solid state hard disc 100 temperature normal information.Then according to a set time, such as 5 seconds to host return command busy.So repeat N time, during this period, if do not receive solid state hard disc 100 temperature normal information, chat the temporal frequency of measure on then increasing, make adjustment more frequent.After a period of time, such as 15 minutes, if still do not receive solid state hard disc 100 problem normal information, then the IO time-delay is returned, but constant time lag, such as 5 milliseconds; Also can add a dynamic delay according to application demand and true processing time of IO, be the x millisecond such as the application requirements maximum response time, and the current I O actual treatment time is the y millisecond, and this IO x-y millisecond of can delaying time returns so.
In sum, the present invention is by detecting the working temperature of solid state hard disc; Then according to described working temperature, control the work of described solid state hard disc; Guaranteed that solid state hard disc does not suffer damage.Concrete, add temperature sensor at solid state hard disc, when temperature surpasses the threshold values of definition, the server at notice solid state hard disc place, the rotating speed of increase fan; Simultaneously, solid-state hard disk controller control data writing speed is until solid state hard disc recovers normal temperature; Effectively protect solid state hard disc, strengthened the reliability of solid state hard disc.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a method that strengthens the solid state hard disc reliability is characterized in that, described method comprises the steps:
Detect the working temperature of solid state hard disc;
According to described working temperature, control the work of described solid state hard disc.
2. method according to claim 1 is characterized in that, comprises before the step of the working temperature of described detection solid state hard disc:
The threshold value of the working temperature of default described solid state hard disc;
The default cycle of detecting the working temperature of described solid state hard disc.
3. method according to claim 2 is characterized in that, the step of the working temperature of described detection solid state hard disc comprises:
When the described cycle arrives, detect the working temperature of described solid state hard disc;
Described according to described working temperature, the step of controlling the work of described solid state hard disc comprises:
When the temperature that detects described solid state hard disc reaches default threshold value, increase described solid state hard disc fan revolution and/or reduce the temperature of refrigeratory; And/or
When the temperature that detects described solid state hard disc reaches default threshold value, the read-write speed of slowing down described solid state hard disc.
4. method according to claim 3 is characterized in that, described according to described working temperature, the step of controlling the work of described solid state hard disc also comprises:
Be reduced to described threshold value when following in the temperature that detects described solid state hard disc, recover the revolution of fan of described solid state hard disc and/or the temperature of described refrigeratory; And/or
Be reduced to described threshold value when following in the temperature that detects described solid state hard disc, recover the read-write speed of described solid state hard disc.
5. method according to claim 3 is characterized in that, when described temperature detecting described solid state hard disc reached default threshold value, the step of slowing down the read-write speed of described solid state hard disc comprised:
Receiving when writing instruction, reducing the degree of depth of said write instruction queue; And/or the frequency of the described instruction queue degree of depth of increase downward modulation.
6. a solid state hard disc is characterized in that, described solid state hard disc comprises:
Detection module is for detection of the working temperature of solid state hard disc;
Control module is used for according to described working temperature, controls the work of described solid state hard disc.
7. solid state hard disc according to claim 6 is characterized in that, described solid state hard disc also comprises:
The first presetting module is for the threshold value of the working temperature of presetting described solid state hard disc;
The second presetting module is used for the default cycle of detecting the working temperature of described solid state hard disc.
8. solid state hard disc according to claim 7 is characterized in that, described detection module comprises:
The first detection sub-module is used for detecting the working temperature of described solid state hard disc when the described cycle arrives;
Described control module comprises:
The first control submodule is used for when the temperature that described the first detection sub-module detects described solid state hard disc reaches default threshold value, increase described solid state hard disc fan revolution and/or reduce the temperature of refrigeratory; And/or
The second control submodule is used for when the temperature that described the second detection sub-module detects described solid state hard disc reaches default threshold value the read-write speed of slowing down described solid state hard disc.
9. solid state hard disc according to claim 8, it is characterized in that, described the first control submodule also is used for being reduced to described threshold value when following in the temperature that described the first detection sub-module detects described solid state hard disc, recovers the revolution of fan of described solid state hard disc and/or the temperature of described refrigeratory; And/or
Described the second control submodule also is used for being reduced to described threshold value when following in the temperature that described the first detection sub-module detects described solid state hard disc, recovers the read-write speed of described solid state hard disc.
10. solid state hard disc according to claim 8 is characterized in that, described the second control submodule is receiving when writing instruction, reduces the degree of depth of said write instruction queue; And/or increase writes the response time of instruction.
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