CN1627433A - Shockproof protection method for hard disk - Google Patents
Shockproof protection method for hard disk Download PDFInfo
- Publication number
- CN1627433A CN1627433A CN 200310118241 CN200310118241A CN1627433A CN 1627433 A CN1627433 A CN 1627433A CN 200310118241 CN200310118241 CN 200310118241 CN 200310118241 A CN200310118241 A CN 200310118241A CN 1627433 A CN1627433 A CN 1627433A
- Authority
- CN
- China
- Prior art keywords
- hard disk
- electronic equipment
- working environment
- protection strategy
- environment
- 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.)
- Granted
Links
Images
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
This invention discloses an anti-shock protection method for hard disks including: When an electronic device works, the working environment information of a current electronic device is got to determine the applied hard disk protection strategy based on the obtained current working environment information and corresponding relations between the working environment and hard disk protection strategy, finally, the working state of the device is designed in terms of the determined hard disk protection strategy.
Description
Technical field
The present invention relates to the maintenance technology of memory device, be meant a kind of anti-shock protection method for hard disks of mobile electronic device especially.
Background technology
Along with popularizing and development of portable mobile electronic devices such as palm PC, MP3, digital recording pen, video player, and the enhancing of function, also increasing to the storage capacity requirement of these mobile electronic devices.In such cases, can support the hard disk of high capacity storage just to become the first-selection of these electronic equipments.
Because these electronic equipments need be carried, therefore the anti-seismic performance of hard disk is had relatively high expectations.2.5 inches (inch) hard disks of the reasonable notebook computer of many choice of equipment shock resistances, the anti-seismic technology that this class hard disk adopts is that the patent No. is 97110351.8, and name is called the disclosed technology of United States Patent (USP) of " having the disc driver based on the impulse detection of the thermal resistance signal of magnetoresistive head ".The ultimate principle of this technology is after hard disk is impacted or shakes, cause the magnetic head temperature fluctuation, the impulse detection circuit reflection magnetoresistance signal skew of fluctuating and the voltage threshold of being scheduled to relatively, when magnetoresistance signal changes above threshold value, expression external impact or vibrations have surpassed the permission restriction, then forbid the read-write operation to disk.
The shortcoming of prior art be to the protection strategy of hard disk too simply, comprehensive inadequately.Because hard disk is under different duties, impact of being born or vibrations are different.Under same vibration environment, hard disk possibly can't bear under certain duty, but if being in other duty then fully can trouble free service.Particularly for mobile electronic equipment, what hard disk was carried out is read operation mostly, and relatively the ability to bear to vibrations is stronger with write operation.Just forbid hard disk work if vibrations are big slightly without exception, then also can't carry out for the operation that does not need too high read or write speed, thereby the operation that can carry out under some environment can not be carried out, hard disk is fully used, reduced the usable range of electronic equipment.In addition, for sudden surge, prior art also is difficult to hard disk is protected, and causes hard disk corruptions easily.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of anti-shock protection method for hard disks, can carry out comprehensive protection to hard disk according to the residing different operating environment of mobile electronic device, protects hard disk making full use of on the basis of hard disk.
A kind of anti-shock protection method for hard disks is applied to portable electronic equipment, may further comprise the steps:
A) obtain the current working environment information of electronic equipment;
B) work at present environmental information of getting according to step a) institute reed and the corresponding relation between working environment and the hard disk protection strategy are determined the current hard disk protection strategy that should adopt of described electronic equipment;
C) duty of described electronic equipment is set according to the determined hard disk protection strategy of step b).
The corresponding relation of described working environment of this method and hard disk protection strategy is: static situation, and corresponding protection strategy is that hard disk is in normal high-speed transfer mode of operation, the electronic equipment internal system carries out normal data to hard disk and reads; Or slight vibration environment, corresponding protection strategy is that hard disk is in normal high-speed transfer mode of operation, the electronic equipment internal system carries out data read by opening up a main frame buffer memory to hard disk; Or vibration environment, corresponding protection strategy is in the low speed transmissions mode of operation for hard disk, and the electronic equipment internal system carries out data read by the main frame buffer memory to hard disk; Or violent vibration environment, corresponding protection strategy is in holding state for hard disk, and the electronic equipment internal system does not carry out data read to hard disk.
This method step a) specifically comprises: a shock sensor is set, obtains electronic equipment work at present environmental information by the output valve of inquiry shock sensor.
This method step a) the described electronic equipment work at present environmental information process of obtaining specifically comprises: the electronic equipment internal system regularly sends query requests to shock sensor, according to the detected value that shock sensor returns, judge electronic equipment present located working environment.
This method step a) specifically comprises: send the notice of carrying out environmental selection to the user, receive the working environment selection result of user's input.
This method further comprises: preestablish the acquiescence working environment of electronic equipment, when the electronic equipment initial start, according to this acquiescence working environment corresponding protection strategy the duty of electronic equipment is set.
This method step further comprises after a): more whether working environment information that determining step a) is obtained and former working environment information change, if, then enter step b), otherwise, after a period of time, return step a) or finish current flow process.
This method further comprises: described electronic equipment sends warning message to the user after receiving the operation requests that duty allowed that exceeds current hard disk secure strategy regulation.
From such scheme as can be seen; a kind of anti-shock protection method for hard disks of the present invention has been formulated different hard disk protection strategies according to the residing different operating environment of electronic equipment; at any time adjust the duty of electronic apparatus system and hard disk according to the difference of environment; thereby when at utmost using hard disk; hard disk is protected; prolong the serviceable life of hard disk, and enlarged the usable range of electronic equipment.And because under some environment, used protection strategies such as increase buffer zone, reduced system to read the number of times of hard disk, thereby hard disk has been caused when having reduced that electronic equipment runs into unexpected the impact probability of damage.
Description of drawings
Fig. 1 is the hardware configuration synoptic diagram of first embodiment of the invention;
Fig. 2 is the realization flow figure of first embodiment of the invention;
Fig. 3 is the realization flow figure of second embodiment of the invention;
Fig. 4 is the hardware configuration synoptic diagram of second embodiment of the invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The anti-vibration protected scheme of hard disk of the present invention is mainly used in portable electronic equipment; comprise: pre-set more than one hard disk protection strategy; the effect of protection strategy is to be used for regulation electronic equipment different operating state, and the corresponding relation of electronic device works environment and hard disk protection strategy is set.When electronic equipment carries out work; working environment information to current electronic device is obtained; then; select the hard disk protection strategy of this working environment correspondence according to the work at present environmental information of obtaining; at last, electronic device works is set under the duty of selected hard disk protection strategy regulation.
What the present invention was preferable can be divided into following a few class to the working environment of hard disk: a) static, such as: electronic equipment is placed on the static object such as desk, and this moment, the external environment accekeration was about 0G.B) slight vibrations, such as: the people holds electronic equipment with hand in the room, the external environment acceleration is less than 0.5G usually.C) vibrations, such as: the people holds electronic equipment with hand on subway, the acceleration of external environment is between 0.5G-1G usually.D) strenuous vibration, when holding electronic equipment run into severe jolt on bus such as: people, the external environment acceleration is greater than 1G usually.
The present invention takes different hard disk protection strategies to come the different operating state of regulation electronic equipment at different hard disk working environment, is shown in Table 1.
| Working environment | Protection strategy (transfer rate) |
| Static | ????PIO?mode-4?or?Multi-word?DMA?mode?2(16.6MB/sec) |
| Slight vibrations | ????PIO?mode-4?or?Multi-word?DMA?mode2+host?cache ????(16.6MB/sec) |
| Vibrations | ????Multi-word?DMA?mode?0+host?cache(4.1MB/sec) |
| Strenuous vibration | ????standby?imediately(0MB/sec) |
Table 1
As shown in table 1, for static situation, the hard disk protection strategy of formulation is: hard disk is operated in transmission state at full speed, as: process input and output mode 4 (PIO mode-4) or multibyte direct memory read mode 2 (Multi-word DMA mode 2).This moment, electronic equipment was in normal operating conditions, and system is reading of data in the hard disk directly, and the hard disk transfer rate can reach 16.6MB/sec, can satisfy the requirement of high rate data transmission, such as: the demand of carrying out video playback etc.
For slight vibration environment, the hard disk protection strategy of formulation is: electronic device works is under Multi-word DMA mode2+host cache state.At this moment, hard disk is still kept the transmission mode of the high speed under PIO mode-4 or the Multi-word DMAmode 2, but the while is at the memory source of electronic equipment, generally be to mark the main frame buffer memory (host cache) of a district as hard disk in the main memory, increase host cache effect is equivalent to increase the L2 cache district with respect to the hard disk of the buffer memory of hard disk (hard disk cache) own.When system carries out data read like this, can read the data of hard disk among the host cache earlier according to host cache size, before system's access hard disk, at first visit host cache, if needed data are arranged among the host cache, system is direct reading of data from host cache just, and there is no need access hard disk.System is prolonged the reading the dish cycle of hard disk, thereby the frequency that the minimizing system reads to coil has increased the protection to hard disk.This increase host cache scheme is specially adapted to the situation of electronic equipment to same content repeat playing, can significantly reduce the number of times of access hard disk, and also can reduce when running into sudden surge, damage the probability of hard disk, the security that has improved data read.
For the environment of vibrations, the hard disk protection strategy of formulation is: electronic device works is under multibyte direct memory read mode 0 (Multi-word DMA mode0)+host cache state.Because in such cases, if hard disk still keeps the transmission of high defeated rate, then the data read probability of makeing mistakes will be very big, make and repeat to transmit frequent appearance, be easy to cause the damage to hard disk.Therefore, this kind situation also will be avoided the transmission of two-forty when adopting host cache as buffering.In addition, system also should limit the application that some requires high rate data transmission, for example: and the video playback of high definition etc., and only allow the user to use the not high application of transfer rate, for example: play MP3 etc.When the user carries out the application that requires high transfer rate by force, by judging mode of operation that hard disk is current or the operating position of host cache, system can give the user with warning, and wherein, the operating position of host cache described here is meant the information such as hit rate of current hostcache.
For the environment of strenuous vibration, the hard disk protection strategy of formulation is: hard disk is placed standby (standby) state, and system does not carry out read-write operation to hard disk.Because the environment of strenuous vibration is very big to the magnetic head and the disk video disc damage probability of hard disk, therefore, hard disk should quit work immediately in the case, enters the standby state, and system gives a warning to the user, forbids the operation that hard disk is read and write data.Wherein, the standby state is a kind of duty of hard disk, and the magnetic head of hard disk is in the safety zone under this state, and the order that circuit can be accepted system at any time enters duty, and the power consumption of this state hard disk is also quite little.
For example two kinds of preferable implementations of the present invention are elaborated below.
Referring to shown in Figure 1, for cooperating the realization of the inventive method, increased shock sensor 101 in the present embodiment in mobile electronic device, this shock sensor 101 is connected with the central processing unit (CPU) 104 of mobile electronic equipment with data processing circuit 103 by A/D change-over circuit 102.The vibration-sensing unit 105 of shock sensor 101 detects the output signal that obtains handle by high-pass filtering circuit 106, the low-pass filtering amplifying circuit 107 of shock sensor 101 self after, export A/D change-over circuit 102 to, after the vibration signal that detection is obtained converts digital signal to, be sent to the CPU 104 of electronic equipment after handling through data processing circuit 103.Here, shock sensor 101 can adopt ENC-03M, and data processing circuit 103 can be latchs such as 74LS245.
The operating process of present embodiment, referring to shown in Figure 2:
The working environment that another preferable embodiment of the present invention then is an electronic equipment is selected by the user, and the treatment scheme of this scheme system is referring to shown in Figure 3.
Step 301, enter electronic equipment environmental selection pattern after, the system prompt user carries out the selection of current environment.
Step 302, after the user had selected the work at present environment, whether system judged that working environment that the user selects is compared with the working environment of present setting and change, if, then enter step 303, otherwise, process ends.
Step 303, the working environment that system is selected according to the user is selected corresponding hard disk protection strategy, thereby the duty of electronic equipment is set, if what promptly the user selected is static situation, system is provided with hard disk and is operated under the normal Multi-word DMA mode2 state; If what the user selected is slight vibration environment, system is provided with hard disk and is operated under the normal Multi-word DMA mode2+host cache state; If what the user selected is vibration environment, system is provided with hard disk and is operated under the Multi-word DMAmode0+host cache state; If what the user selected is violent vibration environment, system is provided with hard disk and is in the standby state, and prompting the user is current can't carry out data read operation.
In addition; the preferable scheme of said process is that a certain working environment can also be set is default contexts for user or system; the pairing hard disk protection strategy of this environment duty is the system default duty; like this when electronic equipment starts at every turn; system can directly place electronic equipment under the acquiescence duty; and the pairing working environment of prompting user's work at present state; if the user thinks that this working environment meets the actual residing objective environment of electronic equipment, then can no longer carry out the selection of working environment.
As can be seen,, can realize the anti-vibration protected process of hard disk by software fully, in addition, also can realize by hardware configuration as shown in Figure 4 for the present embodiment scheme.Fig. 4 is hard-wired a kind of scheme:
Referring to shown in Figure 4; four contact 1-4 of environmental selection switch 401 are connected with scrambler 402 by four signal wires; and be connected to the CPU 104 of electronic equipment by scrambler 402; the other end ground connection of environmental selection switch 401,1-4 place, four contacts signal wire of environmental selection switch 401 is connected to high level VCC by protective resistance R4, R3, R2 and R1 respectively.
The 1-4 of environmental selection switch 401 represents four contacts static, slight vibrations, vibrations, the setting of strenuous vibration one of four states respectively.When environmental selection switch 401 is in 1 position, contact; represent static situation; this moment, contact 1 place signal wire was a low level; other place, contact signal wire is a high level; the level value of signal wire inputs to scrambler 402; scrambler 402 is converted into the discernible signal of system and is sent to CPU 104, and the corresponding hard disk protection strategy of selection is differentiated according to the situation of scrambler input by system, and handles accordingly according to the hard disk protection strategy.Equally, when environmental selection switch 401 was got to other position, system also handled accordingly according to the environment of this position representative.
The number of the strategy of hard disk protection described in the present invention also can be set to other number, and the electronic device works state of defined also can adjust accordingly in the protection strategy.
In a word, the above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of anti-shock protection method for hard disks is applied to portable electronic equipment, it is characterized in that, may further comprise the steps:
A) obtain the current working environment information of electronic equipment;
B) work at present environmental information of obtaining according to step a) and the corresponding relation between working environment and the hard disk protection strategy are determined the current hard disk protection strategy that should adopt of described electronic equipment;
C) duty of described electronic equipment is set according to the determined hard disk protection strategy of step b).
2, according to the described method of claim 1, it is characterized in that, the corresponding relation of described working environment and hard disk protection strategy is: static situation, and corresponding protection strategy is that hard disk is in normal high-speed transfer mode of operation, the electronic equipment internal system carries out normal data to hard disk and reads; Or slight vibration environment, corresponding protection strategy is that hard disk is in normal high-speed transfer mode of operation, the electronic equipment internal system carries out data read by opening up a main frame buffer memory to hard disk; Or vibration environment, corresponding protection strategy is in the low speed transmissions mode of operation for hard disk, and the electronic equipment internal system carries out data read by the main frame buffer memory to hard disk; Or violent vibration environment, corresponding protection strategy is in holding state for hard disk, and the electronic equipment internal system does not carry out data read to hard disk.
3, according to the described method of claim 1, it is characterized in that step a) specifically comprises: a shock sensor is set, obtains electronic equipment work at present environmental information by the output valve of inquiry shock sensor.
4, according to the described method of claim 3, it is characterized in that, the described electronic equipment work at present environmental information process of obtaining of step a) specifically comprises: the electronic equipment internal system regularly sends query requests to shock sensor, according to the detected value that shock sensor returns, judge electronic equipment present located working environment.
5, according to the described method of claim 1, it is characterized in that step a) specifically comprises: send the notice of carrying out environmental selection to the user, receive the working environment selection result of user's input.
6, according to claim 1 or 5 described methods, it is characterized in that, further comprise: preestablish the acquiescence working environment of electronic equipment, when the electronic equipment initial start, according to this acquiescence working environment corresponding protection strategy the duty of electronic equipment is set.
7, according to the described method of claim 1, it is characterized in that, further comprise after the step a): more whether working environment information that determining step a) is obtained and former working environment information change, if, then enter step b), otherwise, after a period of time, return step a) or finish current flow process.
According to the described method of claim 1, it is characterized in that 8, this method further comprises: described electronic equipment sends warning message to the user after receiving the operation requests that duty allowed that exceeds current hard disk secure strategy regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101182418A CN100517495C (en) | 2003-12-08 | 2003-12-08 | Shockproof protection method for hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101182418A CN100517495C (en) | 2003-12-08 | 2003-12-08 | Shockproof protection method for hard disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627433A true CN1627433A (en) | 2005-06-15 |
| CN100517495C CN100517495C (en) | 2009-07-22 |
Family
ID=34761097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101182418A Expired - Fee Related CN100517495C (en) | 2003-12-08 | 2003-12-08 | Shockproof protection method for hard disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100517495C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089987B (en) * | 2006-06-13 | 2010-05-12 | 环达电脑(上海)有限公司 | Hard disk anti-vibration device and method |
| CN101996671A (en) * | 2010-11-25 | 2011-03-30 | 深圳市研祥通讯终端技术有限公司 | Disc protection method, apparatus and device |
| CN104346588A (en) * | 2013-08-09 | 2015-02-11 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105335671A (en) * | 2014-06-12 | 2016-02-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN108279989A (en) * | 2017-12-13 | 2018-07-13 | 北京中电万联科技股份有限公司 | Vehicle-mounted critical data method for secure storing and its system |
| CN109213634A (en) * | 2018-08-28 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of data guard method of server, system, equipment and storage medium |
-
2003
- 2003-12-08 CN CNB2003101182418A patent/CN100517495C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089987B (en) * | 2006-06-13 | 2010-05-12 | 环达电脑(上海)有限公司 | Hard disk anti-vibration device and method |
| CN101996671A (en) * | 2010-11-25 | 2011-03-30 | 深圳市研祥通讯终端技术有限公司 | Disc protection method, apparatus and device |
| CN101996671B (en) * | 2010-11-25 | 2013-09-04 | 研祥智能科技股份有限公司 | Disc protection method, apparatus and device |
| CN104346588A (en) * | 2013-08-09 | 2015-02-11 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104346588B (en) * | 2013-08-09 | 2018-06-01 | 联想(北京)有限公司 | The method and electronic equipment of a kind of information processing |
| CN105335671A (en) * | 2014-06-12 | 2016-02-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN105335671B (en) * | 2014-06-12 | 2018-07-06 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN108279989A (en) * | 2017-12-13 | 2018-07-13 | 北京中电万联科技股份有限公司 | Vehicle-mounted critical data method for secure storing and its system |
| CN108279989B (en) * | 2017-12-13 | 2021-09-03 | 北京中电万联科技股份有限公司 | Vehicle-mounted key data safe storage method and system thereof |
| CN109213634A (en) * | 2018-08-28 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of data guard method of server, system, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100517495C (en) | 2009-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7499232B2 (en) | Media player with acceleration protection | |
| USRE44128E1 (en) | Adaptive resource controlled write-back aging for a data storage device | |
| US8332555B2 (en) | Disk drive system on chip with integrated buffer memory and support for host memory access | |
| US8656097B2 (en) | Selection of data storage locations based on one or more conditions | |
| US20090182933A1 (en) | Durable data storage system and method | |
| CN1418717A (en) | Game system | |
| EP1983421A3 (en) | Storage controller and storage control method | |
| US7199969B2 (en) | Shock protection cushioning apparatus for protecting a hard disk drive from a shock by utilizing a zero-gravity sensor | |
| US8626985B2 (en) | Hybrid optical disk drive, method of operating the same, and electronic system adopting the hybrid optical disk drive | |
| CN1627433A (en) | Shockproof protection method for hard disk | |
| US20070291392A1 (en) | Storage device, continuous-vibration detecting method, and control apparatus | |
| US20060215299A1 (en) | Shock-resistant magnetic storage medium for a portable electronic device | |
| EP1744610A3 (en) | Information recording/reproduction apparatus having hard disk device incorporated therein | |
| US20070291400A1 (en) | Storage device with a power-off protective reflex function | |
| CN1264095C (en) | Apparatus and method for accessing disk containing alternate sector | |
| CN101562028A (en) | Shock prevention method for hard disk, hard disk and vehicle electronic device | |
| CN1956081A (en) | Electronic apparatus and electronic apparatus control method | |
| JP2001266466A (en) | Disk storage and impact detecting method in the same | |
| EP2081115A1 (en) | Durable data storage system and method | |
| CN100533581C (en) | Electronic device with electronic anti-vibration protected hard disc | |
| US20100115529A1 (en) | Memory management apparatus and method | |
| CN1134002C (en) | Method and device for preventing vibration demage of hard disk | |
| US7164634B2 (en) | Storage device with shockproof function and accessing method thereof | |
| JP2006107657A (en) | Portable type device | |
| KR100650517B1 (en) | Shock-resistant magnetic storage medium for a portable electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20201208 |