CN110221772A - A kind of solid state hard disk working method, system, computer equipment and storage medium - Google Patents
A kind of solid state hard disk working method, system, computer equipment and storage medium Download PDFInfo
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- CN110221772A CN110221772A CN201910340639.7A CN201910340639A CN110221772A CN 110221772 A CN110221772 A CN 110221772A CN 201910340639 A CN201910340639 A CN 201910340639A CN 110221772 A CN110221772 A CN 110221772A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0634—Configuration or reconfiguration of storage systems by changing the state or mode of one or more devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0674—Disk device
- G06F3/0676—Magnetic disk device
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Abstract
The present invention relates to a kind of solid state hard disk working method, system, computer equipment and storage mediums.Working method includes: to read again the hard disc data of solid state hard disk after being purged to the hard disc data in solid state hard disk；Whether confirmation hard disc data is empty；If hard disc data is not sky, the hard disc data in solid state hard disk is removed again, until the hard disc data of solid state hard disk is sky.After hard disc data of the embodiment of the present invention in solid state hard disk is removed, read again the hard disc data in solid state hard disk, whether confirmation hard disc data is empty, if hard disc data is not sky, the hard disc data in solid state hard disk is understood again, avoids the hard disc data in solid state hard disk not fully erased, when leading to subsequent use solid state hard disk, the data of write-in overlap and interfere with not fully erased data, and the data newly stored is caused to go out active or read error, improve the safety of data.
Description
Technical field
The present invention relates to solid state hard disk technical fields more particularly to a kind of solid state hard disk working method, system, computer to set
Standby and storage medium.
Background technique
Solid state drive (Solid State Drive), is commonly called as solid state hard disk, and solid state hard disk is to store core with solid-state electronic
Chip arrays and manufactured hard disk, because solid capacitance is referred to as Solid and is gained the name in the English of Taiwan.SSD by control unit and
Storage unit composition.Solid state hard disk is identical with common hard disc in the specification and definition, function and application method of interface,
Also completely consistent with common hard disc in product shape and size.It is widely used in military, vehicle-mounted, industry control, video monitoring, net
The numerous areas such as network monitoring, the network terminal, electric power, medical treatment, aviation, navigation equipment.
Wherein, the particle characteristics of the flash memory in solid state hard disk (NAND) are as follows: multiple physical blocks (Block) form flash memory, object
Data could be written after must wiping in reason block.If physical block does not wipe data when wiping data completely, subsequent to physics
Data are written in block, it may appear that the case where data cover is with being overlapped leads to final read error, the in this way data ten in the physical block
Partial volume is error-prone, and user's initial data is caused to be lost.
Summary of the invention
Of the existing technology in order to solve the problems, such as, at least one embodiment of the present invention provides a kind of solid state hard disk work
Make method, system, computer equipment and storage medium.
In a first aspect, the embodiment of the invention provides a kind of solid state hard disk working method, the working method includes:
After being purged to the hard disc data in solid state hard disk, the hard disc data of the solid state hard disk is read again；
Confirm whether the hard disc data is empty；
If the hard disc data is not sky, the hard disc data in the solid state hard disk is removed again, until the solid-state is hard
The hard disc data of disk is sky.
Based on the above-mentioned technical proposal, the embodiment of the present invention can also make following improvement.
With reference to first aspect, in the first embodiment of first aspect, the working method further include:
After the hard disc data in the solid state hard disk is not sky, obtain again to the hard disc data in the solid state hard disk
The number of purge being purged；
Judge whether the number of purge is greater than preset times；
If the number of purge is greater than preset times, obtained in the solid state hard disk not as the empty hard disc data pair
The block answered；
The block is marked, and data no longer are written to the block after label.
With reference to first aspect or the first embodiment of first aspect, described in second of embodiment of first aspect
The hard disc data for reading again the solid state hard disk, specifically includes:
Gradually adjustment is applied to the critical voltage at the solid state hard disk both ends；
Obtain the hard disc data under each critical voltage.
With reference to first aspect or the first embodiment of first aspect, described in the third embodiment of first aspect
The hard disc data for reading again the solid state hard disk, specifically includes:
Gradually adjustment is applied to the critical voltage at the solid state hard disk both ends；
Obtaining critical voltage is the hard disc data under negative voltage.
Second aspect, the embodiment of the invention provides a kind of solid state hard disk system, the solid state hard disk system includes:
Reading unit, for reading again the solid state hard disk after being purged to the hard disc data in solid state hard disk
Hard disc data；
First judging unit, for confirming whether the hard disc data is empty；
Clearing cell removes the hard disc data in the solid state hard disk, directly if not being sky for the hard disc data again
Hard disc data to the solid state hard disk is sky.
In conjunction with second aspect, in the first embodiment of second aspect, the solid state hard disk system further include:
First acquisition unit, for obtaining again to described solid after the hard disc data in the solid state hard disk is not sky
The number of purge that hard disc data in state hard disk is purged；
Second judgment unit, for judging whether the number of purge is greater than preset times；
Second acquisition unit obtains in the solid state hard disk if being greater than preset times for the number of purge and is not
The empty corresponding block of the hard disc data；
For the block to be marked, and data no longer are being written to the block after label in marking unit.
It is described in second of embodiment of second aspect in conjunction with the first of second aspect or second aspect embodiment
Reading unit includes:
Adjustment unit, for gradually adjusting the critical voltage for being applied to the solid state hard disk both ends；
Third acquiring unit, for obtaining the hard disc data under each critical voltage.
It is described in the 4th kind of embodiment of second aspect in conjunction with the first of second aspect or second aspect embodiment
Reading unit includes:
Adjustment unit, for gradually adjusting the critical voltage for being applied to the solid state hard disk both ends；
Third acquiring unit is the hard disc data under negative voltage for obtaining critical voltage.
The third aspect the embodiment of the invention provides a kind of computer equipment, including memory, processor and is stored in
On reservoir and the computer program that can run on a processor, the processor realize first party when executing the computer program
The step of any one of face the method.
Fourth aspect, the embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with computer journey
Sequence, when the computer program is executed by processor the step of method described in any one of realization first aspect.
Above-mentioned technical proposal of the invention has the advantages that the embodiment of the present invention in solid state hard disk compared with prior art
In hard disc data removed after, read again the hard disc data in solid state hard disk, confirmation hard disc data whether be it is empty, if hard disk
Data are not sky, then understand the hard disc data in solid state hard disk again, avoid the hard disc data in solid state hard disk not fully erased,
When leading to subsequent use solid state hard disk, the data of write-in overlap and interfere with not fully erased data, cause newly to store
Data go out active or read error, improve the safety of data.
Detailed description of the invention
Fig. 1 is a kind of applied environment figure of solid state hard disk working method provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of solid state hard disk working method flow diagram；
Fig. 3 is a kind of solid state hard disk working method flow diagram that further embodiment of this invention provides；
Fig. 4 is a kind of solid state hard disk system structural schematic diagram that further embodiment of this invention provides；
Fig. 5 is a kind of internal structure chart for computer equipment that further embodiment of this invention provides.
Specific embodiment
To remove the purposes, technical schemes and advantages of the embodiment of the present invention more, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is purged, is fully described by, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the applied environment figure of solid state hard disk working method in one embodiment.Referring to Fig.1, which works
Method is applied to solid state hard disk system.The solid state hard disk system includes terminal 110 and server 120.Terminal 110 and server
120 pass through network connection.Terminal 110 specifically can be terminal console or mobile terminal, and mobile terminal specifically can be with mobile phone, plate
At least one of computer, laptop etc..Server 120 can be formed with the either multiple servers of independent server
Server cluster realize.
As shown in Fig. 2, in one embodiment, providing a kind of solid state hard disk working method.The present embodiment is mainly with this
Method is applied to the terminal 110 (or server 120) in above-mentioned Fig. 1 to illustrate.Referring to Fig. 2, the solid state hard disk work side
Method specifically comprises the following steps:
S11, after being purged to the hard disc data in solid state hard disk, read again the hard disc data of solid state hard disk.
In the present embodiment, the basic unit of storage in solid state hard disk is the transistor being transformed, i.e., retouches in background technique
The physical block stated is followed successively by control electrode, insulating layer, floating gate, insulating layer and substrate, wherein data are stored in floating from top to bottom
Grid.Number toward floating gate injection electronics is different, and critical voltage is also different.What is critical voltage? it is exactly toward control electrode
Upper making alive, if control voltage is greater than critical voltage, which is turned on, and is otherwise just ended.Toward the solid state hard disk
Upper application 0-6.5V voltage, such as 0,0.1,0.2,0.3,0.4 ..., 6.5, when applying 0.1 voltage, there are 100 storage units
Conducting illustrates have the critical voltage of 100 storage units lower than 0.1, when applying 0.2, has 150 memory cell conducts, say
The bright critical voltage for having 50 storage units is between 0.1 and 0.2.Operation in this way, to each critical voltage, energy
How many storage unit is obtained with this critical voltage；After being removed to the hard disc data in solid state hard disk, if physical block
It is weak piece, is then likely to occur data erasing not exclusively, leads to remaining data in data block, so, it is hard that solid-state is read again at this time
Hard disc data in disk can confirm whether data are removed completely by reading hard disc data.
Specifically, the method for reading the hard disc data of solid state hard disk includes: that gradually adjustment is applied to solid state hard disk both ends
Critical voltage；Obtain the hard disc data under each critical voltage.
Alternatively, the method for reading the hard disc data of solid state hard disk includes: that gradually adjustment is applied to facing for solid state hard disk both ends
Boundary's voltage；Obtaining critical voltage is the hard disc data under negative voltage, and in solid state hard disk, the critical voltage being positive faces with what is be negative
Boundary's voltage is symmetrically, whole hard disk can be embodied from side by the hard disc data being retrieved as under the critical voltage of negative voltage
Data cases, to accelerate data-handling efficiency.
Whether S12, confirmation hard disc data are empty.
In the present embodiment, as the erasing times of solid state hard disk increase, erasing times increase, and can make the electricity of isolated gate
Chemical bond dies down, and the electronics inside floating gate is run out, and hard disc data is resulted in lose.The speed that electronics is run out is with wiping
Except number is directly proportional, it is, flash memory wiping/writing number is more, electronics runs faster, will lead to data and disappears faster.
If S13, hard disc data are not sky, the hard disc data in solid state hard disk is removed again, until the hard disk of solid state hard disk
Data are sky.
In the present embodiment, if hard disc data is not sky, the hard disc data in solid state hard disk is removed again, until solid-state
Hard disc data in hard disk is sky, specifically, can be emptied the hard disc data in solid state hard disk by circulation S11~S13,
If hard disc data is sky, the solid state hard disk for illustrating at this time can effectively remove the data in solid state hard disk.
Above-mentioned solid state hard disk working method is derived using the technical characteristic of solid state hard disk working method exclusive rights, is realized
It is able to solve the beneficial effect of technical problem proposed in background technique.
As shown in figure 3, in one embodiment, providing a kind of solid state hard disk working method.Referring to Fig. 3, the solid-state is hard
Disk working method specifically comprises the following steps:
S21, after being purged to the hard disc data in solid state hard disk, read again the hard disc data of solid state hard disk.
Related step S21 can be found in the description in step S11 in detail, and details are not described herein for the present embodiment.
Whether S22, confirmation hard disc data are empty.
Related step S22 can be found in the description in step S12 in detail, and details are not described herein for the present embodiment.
If S23, hard disc data are not removing time empty, that acquisition is again purged the hard disc data in solid state hard disk
Number.
In the present embodiment, when hard disc data is not sky, illustrate that solid state hard disk is not cleaned out at this time, then need to solid
State hard disk re-starts cleaning, at this point, the removing time being purged again to the hard disc data in solid state hard disk in the present embodiment
Number is indicated in fully erased primary, the number of purge expended, for example, solid-state is hard by the hard disc data in solid state hard disk
Fully erased five removings of progress altogether of hard disc data in disk, and correspond to solid state hard disk now and carried out three times, then at this time again
The number of purge that the secondary hard disc data in solid state hard disk is purged is twice.
S24, judge whether number of purge is greater than preset times.
In the present embodiment, as the erasing times of solid state hard disk increase, erasing times increase, and can make the electricity of isolated gate
Chemical bond dies down, and the electronics inside floating gate is run out, and hard disc data is resulted in lose.The speed that electronics is run out is with wiping
Except number is directly proportional, it is, flash memory wiping/writing number is more, electronics runs faster, will lead to data and disappears faster.By
It is each block cleared up in solid state hard disk in turn when hard disc data is purged, i.e. data block or physical block, and some districts
Block it is erased it is clean after, would not be wiped free of again, and certain blocks may have already appeared flaw or flaw will occurs, lead
Cause block can not be wiped clean completely or need repeatedly erasing that could wipe completely completely, and constantly wipe the block
It removes, wisdom causes the block completely ineffective, so needing to reach in number of purge to improve the efficiency of erasing to solid state hard disk
When to a threshold value, stops in time, avoid that solid state hard disk is caused further to damage.
If S25a, number of purge are greater than preset times, obtained in solid state hard disk not as the empty corresponding area of hard disc data
Block.
In the present embodiment, when number of purge be greater than preset times when, illustrate in the solid state hard disk exist there is flaw
Block, obtains the block not stored for empty hard disc data in solid state hard disk at this time, these blocks have already appeared flaw or
Person is due to excessively using becoming weak piece.
S26, block is marked, and data no longer is written to the block after label.
In the present embodiment, to avoid flaw area and weak piece from having an impact the work of follow-up storage data, number is interfered
According to validity, the block to go wrong is marked, while making that number no longer is written to the block when subsequent use solid state hard disk
According to improve Information Security and stability.
If S25b, number of purge are less than or equal to preset times, the hard disc data in solid state hard disk is removed again.
In the present embodiment, if hard disc data is not empty, and number of purge is less than or equal to preset times, then the solid-state is hard
Disk can also continue to be purged data, and need to continue to clear data, then continues to carry out the hard disc data in solid state hard disk
It removes, the hard disc data removed in this programme in solid state hard disk can be realized by state of the art, and this programme is herein no longer
It repeats.
It should be understood that although each step in the flow chart of Fig. 2 and Fig. 3 is successively shown according to the instruction of arrow,
But these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these
There is no stringent sequences to limit for the execution of step, these steps can execute in other order.Moreover, in Fig. 2 and Fig. 3
At least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily same to multiple sub-steps
One moment executed completion, but can execute at different times, and the execution in these sub-steps or stage sequence is also not necessarily
Be successively carry out, but can at least part of the sub-step or stage of other steps or other steps in turn or
Alternately execute.
In one embodiment, as shown in figure 4, providing a kind of solid state hard disk system, comprising: reading unit, first sentences
Disconnected unit and clearing cell.
In the present embodiment, reading unit, for reading again after being purged to the hard disc data in solid state hard disk
The hard disc data of solid state hard disk.The method for reading the hard disc data of solid state hard disk includes: that gradually adjustment is applied to solid state hard disk two
The critical voltage at end；Obtain the hard disc data under each critical voltage.Alternatively, reading the method packet of the hard disc data of solid state hard disk
Include: gradually adjustment is applied to the critical voltage at solid state hard disk both ends；Obtaining critical voltage is the hard disc data under negative voltage, solid
In state hard disk, the critical voltage being positive and the critical voltage being negative are symmetrically, by being retrieved as under the critical voltage of negative voltage
Hard disc data whole hard disc data situation can be embodied from side, to accelerate data-handling efficiency.
In the present embodiment, the first judging unit, for confirming whether hard disc data is empty.With the erasing of solid state hard disk
Number increases, and erasing times increase, and the electrochemistry key of isolated gate can be made to die down, the electronics inside floating gate is run out, just
Hard disc data is caused to be lost.The speed that electronics is run out is directly proportional with erasing times, it is, flash memory wiping/writing number is got over
More, electronics runs faster, will lead to data and disappears faster.
In the present embodiment, clearing cell removes the hard disk number in solid state hard disk if for hard disc data not being sky again
According to until the hard disc data of solid state hard disk is sky.In the present embodiment, if hard disc data is not sky, it is hard that solid-state is removed again
Hard disc data in disk, until the hard disc data in solid state hard disk is sky.
In a specific embodiment, shown in Fig. 4 compared with solid state hard disk system, difference is, solid state hard disk system
Further include: first acquisition unit, second judgment unit, second acquisition unit and marking unit.
In the present embodiment, first acquisition unit after not being sky for the hard disc data in solid state hard disk, obtains again
The number of purge that hard disc data in solid state hard disk is purged.
In the present embodiment, second judgment unit, for judging whether number of purge is greater than preset times.
In the present embodiment, second acquisition unit obtains in solid state hard disk if being greater than preset times for number of purge
It is not the empty corresponding block of hard disc data.
In the present embodiment, for block to be marked, and number no longer is being written to the block after label in marking unit
According to.
Fig. 5 shows the internal structure chart of computer equipment in one embodiment.The computer equipment specifically can be Fig. 1
In terminal 110 (or server 120).As shown in figure 5, it includes total by system that the computer equipment, which includes the computer equipment,
Processor, memory, network interface, input unit and the display screen of line connection.Wherein, memory includes that non-volatile memories are situated between
Matter and built-in storage.The non-volatile memory medium of the computer equipment is stored with operating system, can also be stored with computer journey
Sequence when the computer program is executed by processor, may make processor to realize solid state hard disk working method.In the built-in storage
Computer program can be stored, when which is executed by processor, processor may make to execute solid state hard disk work side
Method.The display screen of computer equipment can be liquid crystal display or electric ink display screen, the input unit of computer equipment
It can be the touch layer covered on display screen, be also possible to the key being arranged on computer equipment shell, trace ball or Trackpad,
It can also be external keyboard, Trackpad or mouse etc..
It will be understood by those skilled in the art that structure shown in Fig. 5, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment
It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, solid state hard disk system provided by the present application can be implemented as a kind of shape of computer program
Formula, computer program can be run in computer equipment as shown in Figure 5.Composition can be stored in the memory of computer equipment should
Each program module of solid state hard disk system, for example, reading unit shown in Fig. 4, the first judging unit and clearing cell.It is each
The computer program that program module is constituted makes processor execute the solid-state of each embodiment of the application described in this specification
Step in hard disk operational method.
For example, computer equipment shown in fig. 5 can be held by the reading unit in solid state hard disk system as shown in Figure 4
Row step S11, computer equipment can execute step S12 by the first judging unit.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
After being purged to the hard disc data in solid state hard disk, the hard disc data of solid state hard disk is read again；
Whether confirmation hard disc data is empty；
If hard disc data is not sky, the hard disc data in solid state hard disk is removed again, until the hard disc data of solid state hard disk
For sky.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Instruct relevant hardware to complete by computer program, program can be stored in a non-volatile computer storage can be read
In medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, provided herein each
To any reference of memory, storage, database or other media used in embodiment, may each comprise it is non-volatile and/
Or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable
ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include random access memory
(RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, such as static state RAM
(SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhanced SDRAM
(ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) directly RAM (RDRAM), straight
Connect memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or equipment for including element.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of solid state hard disk working method, which is characterized in that the working method includes:
After being purged to the hard disc data in solid state hard disk, the hard disc data of the solid state hard disk is read again；
Confirm whether the hard disc data is empty；
If the hard disc data is not sky, the hard disc data in the solid state hard disk is removed again, until the solid state hard disk
Hard disc data is sky.
2. solid state hard disk working method according to claim 1, which is characterized in that the working method further include:
After the hard disc data in the solid state hard disk is not sky, obtains and the hard disc data in the solid state hard disk is carried out again
The number of purge of removing；
Judge whether the number of purge is greater than preset times；
If the number of purge is greater than preset times, obtained in the solid state hard disk not corresponding for the empty hard disc data
Block；
The block is marked, and data no longer are written to the block after label.
3. solid state hard disk working method according to claim 1 or 2, which is characterized in that described to read again the solid-state
The hard disc data of hard disk, specifically includes:
Gradually adjustment is applied to the critical voltage at the solid state hard disk both ends；
Obtain the hard disc data under each critical voltage.
4. solid state hard disk working method according to claim 1 or 2, which is characterized in that described to read again the solid-state
The hard disc data of hard disk, specifically includes:
Gradually adjustment is applied to the critical voltage at the solid state hard disk both ends；
Obtaining critical voltage is the hard disc data under negative voltage.
5. a kind of solid state hard disk system, which is characterized in that the solid state hard disk system includes:
Reading unit, for reading again the hard of the solid state hard disk after being purged to the hard disc data in solid state hard disk
Disk data；
First judging unit, for confirming whether the hard disc data is empty；
Clearing cell removes the hard disc data in the solid state hard disk if not being sky for the hard disc data again, until institute
The hard disc data of solid state hard disk is stated as sky.
6. solid state hard disk system according to claim 5, which is characterized in that the solid state hard disk system further include:
First acquisition unit, for obtaining hard to the solid-state again after the hard disc data in the solid state hard disk is not sky
The number of purge that hard disc data in disk is purged；
Second judgment unit, for judging whether the number of purge is greater than preset times；
Second acquisition unit, if being greater than preset times for the number of purge, it is not empty for obtaining in the solid state hard disk
The corresponding block of the hard disc data；
For the block to be marked, and data no longer are being written to the block after label in marking unit.
7. solid state hard disk system according to claim 5 or 6, which is characterized in that the reading unit includes:
Adjustment unit, for gradually adjusting the critical voltage for being applied to the solid state hard disk both ends；
Third acquiring unit, for obtaining the hard disc data under each critical voltage.
8. solid state hard disk system according to claim 5 or 6, which is characterized in that the reading unit includes:
Adjustment unit, for gradually adjusting the critical voltage for being applied to the solid state hard disk both ends；
Third acquiring unit is the hard disc data under negative voltage for obtaining critical voltage.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any one of Claims 1 to 4 institute when executing the computer program
The step of stating method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method according to any one of claims 1 to 4 is realized when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340639.7A CN110221772A (en) | 2019-04-25 | 2019-04-25 | A kind of solid state hard disk working method, system, computer equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910340639.7A CN110221772A (en) | 2019-04-25 | 2019-04-25 | A kind of solid state hard disk working method, system, computer equipment and storage medium |
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| CN110221772A true CN110221772A (en) | 2019-09-10 |
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| CN201910340639.7A Pending CN110221772A (en) | 2019-04-25 | 2019-04-25 | A kind of solid state hard disk working method, system, computer equipment and storage medium |
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| CN110968531A (en) * | 2019-11-27 | 2020-04-07 | 浪潮商用机器有限公司 | Data destruction method, system and device of SSD |
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Application publication date: 20190910 |