CN109324832A - A kind of solid state hard disk is in starting method and its system under low temperature condition - Google Patents
A kind of solid state hard disk is in starting method and its system under low temperature condition Download PDFInfo
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- CN109324832A CN109324832A CN201811036701.5A CN201811036701A CN109324832A CN 109324832 A CN109324832 A CN 109324832A CN 201811036701 A CN201811036701 A CN 201811036701A CN 109324832 A CN109324832 A CN 109324832A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
- G06F11/1044—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices with specific ECC/EDC distribution
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3037—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a memory, e.g. virtual memory, cache
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- General Engineering & Computer Science (AREA)
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- Software Systems (AREA)
- Computer Security & Cryptography (AREA)
- Mathematical Physics (AREA)
- Memory System Of A Hierarchy Structure (AREA)
Abstract
The starting method and its system being in the present invention relates to a kind of solid state hard disk under low temperature condition；Wherein, solid state hard disk is in the starting method under low temperature condition, comprising the following steps: S1, host are powered on to SSD；Loading firmware brings into operation inside S2, SSD, and SSD firmware carries out peripheral hardware initialization, and accesses temperature sensor, obtains onboard temperature；S3, judges whether onboard temperature is lower than threshold value；S4 closes ECC Engine, and continues to read the invalid filling data in reserved block；S5, judges whether onboard temperature reaches preset threshold；S6 opens ECC Engine, establishes physical connection with host, reconstructed mapped table inside SSD, completes after mapping table rebuilds, normal response host read write command.The present invention is by monitoring onboard temperature in the rigid electrifying startup of system, when onboard temperature is lower than threshold value, it initiates to read the sky of invalid data, makes SSD work under high power consumption state, promote onboard temperature, so that NAND work correctly reads data in suitable temperature range.
Description
Technical field
The present invention relates to solid state hard disks to start field, more specifically refers to that a kind of solid state hard disk is under low temperature condition
Starting method and its system.
Background technique
SSD (solid state hard disk) has been widely used in various occasions, since it is in performance, power consumption, environmental suitability etc.
The outstanding index of aspect, just gradually replaces traditional hard disk.Due to the characteristic of NAND, when the data in NAND are respectively in not equality of temperature
When spending writing, reading, error in data will lead to, and in some specific industry application scenarios, it needs in room temperature or high-temperature field
OS is loaded under scape, then may be started under the environment temperature of low-temperature condition (such as -10 degree)；In this state, due to writing
The temperature difference for entering reading is larger, and the OS data being previously written can be damaged, and leads to system starting failure, further, inside SSD
It can be error in data by its permanent marker, even if so follow-up system is restored to suitable temperature for reading the data of failure
Degree, can not also return to correct data, therefore be unable to satisfy demand.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of solid state hard disk is provided and is in opening under low temperature condition
Dynamic method and its system.
To achieve the above object, the present invention is used in lower technical solution:
A kind of solid state hard disk is in the starting method under low temperature condition, comprising the following steps:
S1, host are powered on to SSD；
Loading firmware brings into operation inside S2, SSD, and SSD firmware carries out peripheral hardware initialization, and accesses temperature sensor, obtains
Take onboard temperature；
S3, judges whether onboard temperature is lower than threshold value；If so, into S4；If it is not, then entering S6；
S4 closes ECC Engine, and continues to read the invalid filling data in reserved block；
S5, judges whether onboard temperature reaches preset threshold；If so, into S6；If it is not, then returning to S4；
S6 opens ECC Engine, establishes physical connection with host, reconstructed mapped table inside SSD, completes after mapping table rebuilds,
Normal response host read write command.
Its further technical solution are as follows: the S2 includes:
Loading firmware brings into operation inside S21, SSD；
S22, SSD firmware carry out peripheral hardware initialization；
S23, SSD access temperature sensor, obtain onboard temperature.
Its further technical solution are as follows: in the S2, the outer I2C interface for being set as temperature sensor.
Its further technical solution are as follows: in the S3, the threshold value is -5 °.
Its further technical solution are as follows: the S4 further includes ignoring data correctness.
Its further technical solution are as follows: in the S5, the preset threshold is 0 °.
Its further technical solution are as follows: the S6 includes:
S61 opens ECC Engine, establishes physical connection, reconstructed mapped table inside SSD with host；
S62, after completing mapping table reconstruction, normal response host read write command.
A kind of solid state hard disk is in the activation system under low temperature condition, including upper electric unit, runs access unit, first sentences
Disconnected unit closes reading unit, second judgment unit, and opens and establish response unit；
The upper electric unit is powered on for host to SSD；
The operation access unit brings into operation for loading firmware inside SSD, and SSD firmware carries out peripheral hardware initialization, and
Temperature sensor is accessed, onboard temperature is obtained；
First judging unit, for judging whether onboard temperature is lower than threshold value；
The closing reading unit for closing ECC Engine, and continues to read the invalid filling data in reserved block；
The second judgment unit, for judging whether onboard temperature reaches preset threshold；
The opening establishes response unit, is used to open ECC Engine, establishes physical connection with host, rebuilds and reflect inside SSD
Firing table, after completing mapping table reconstruction, normal response host read write command.
Its further technical solution are as follows: the operation access unit includes operation module, initialization module and access modules；
The operation module brings into operation for loading firmware inside SSD；
The initialization module carries out peripheral hardware initialization for SSD firmware；
The access modules obtain onboard temperature for accessing temperature sensor.
Its further technical solution are as follows: it includes opening to establish module and respond module that the opening, which establishes response unit,；
The opening establishes module, is used to open ECC Engine, establishes physical connection, reconstructed mapped inside SSD with host
Table；
The respond module is used for after completing mapping table and rebuilding, normal response host read write command.
Compared with the prior art, the invention has the advantages that: by just being powered in the system time of running, especially system
When starting, onboard temperature is monitored, when onboard temperature is lower than threshold value, initiates to read the sky of invalid data, makes SSD work in Gao Gong
Under consumption state, onboard temperature is promoted, so that NAND work is correctly read data, avoided in suitable temperature range
It lower than being just written and read to valid data on NAND before secure threshold, and then avoids valid data and is flagged as mistake, cause
System data is lost.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is typical reading flow diagram inside SSD；
Fig. 2 is the flow chart that a kind of solid state hard disk of the present invention is in the starting method under low temperature condition；
Fig. 3 is that NAND is in the read-write model errors distribution schematic diagram under different temperatures；
Fig. 4 is temperature versus time curve schematic diagram after SSD powers on full speed operation；
Fig. 5 is that a kind of solid state hard disk of the present invention is in the activation system block diagram under low temperature condition.
Electric unit 20 runs access unit on 10
21 operation 22 initialization modules of module
23 access modules, 30 first judging unit
40 close 50 second judgment unit of reading unit
60 openings establish the opening of response unit 61 and establish module
62 respond modules
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
Such as Fig. 1 to specific embodiment shown in fig. 5, wherein as shown in Figure 1, typical inside SSD read flow diagram:
1, host submits read command to the front-end module of SSD；
2, order is divided into map unit (typical such as 4KB) by SSD front-end module, is submitted to read-write buffer zone module；
3, read-write buffer management module is (typical such as DRAM) allocation space from Memory；
4, submit operation requests to mapping table management module
5, mapping table management module is responsible for logical address being converted into NAND physical address；
6, submit operation requests to rear module, rear module is according to physical address initiation to NAND read request；
7, NAND operation requests are waited to complete, data are already loaded into the Memory of distribution at this time, control operation requests
Successively return to upper layer module；
After 8 front-end modules receive the control operation requests of completion, data transfer command is constructed, master is transferred data to
Machine.
Particularly, when read data are due to being more than ECC error correction ability, SSD can be to host report error in data, together
When inside by this data permanent marker be mistake, error condition is returned always to the access of the data thereafter.
As shown in Figures 2 to 4, the invention discloses a kind of solid state hard disks to be in the starting method under low temperature condition, including
Following steps:
S1, host are powered on to SSD；
Loading firmware brings into operation inside S2, SSD, and SSD firmware carries out peripheral hardware initialization, and accesses temperature sensor, obtains
Take onboard temperature；
S3, judges whether onboard temperature is lower than threshold value；If so, into S4；If it is not, then entering S6；
S4 closes ECC Engine, and continues to read the invalid filling data in reserved block；
S5, judges whether onboard temperature reaches preset threshold；If so, into S6；If it is not, then returning to S4；
S6 opens ECC Engine, establishes physical connection with host, reconstructed mapped table inside SSD, completes after mapping table rebuilds,
Normal response host read write command.
Wherein, S2 includes:
Loading firmware brings into operation inside S21, SSD；
S22, SSD firmware carry out peripheral hardware initialization；
S23, SSD access temperature sensor, obtain onboard temperature.
Wherein, in S2, it is set as the I2C interface of temperature sensor outside.
Wherein, in S3, the threshold value is -5 °.
Wherein, S4 further includes ignoring data correctness.
Wherein, in S5, the preset threshold is 0 °.
Wherein, S6 includes:
S61 opens ECC Engine, establishes physical connection, reconstructed mapped table inside SSD with host；
S62, after completing mapping table reconstruction, normal response host read write command.
In the process, to the monitoring of temperature and independent invalid filling data block is set up constantly by powering in host
" warm-up " reading is carried out, just valid data on NAND can be written and read to avoid before being lower than secure threshold, and then avoid
Valid data are flagged as mistake, and system data is caused to be lost.
As shown in figure 3, horizontal axis represents the wrong bit quantity in each code word；Wherein code word is an ECC encoding and decoding list
Member, it is typical such as 1KB；The longitudinal axis represents the number of codewords of corresponding mistake bit number；" ECC error correction capacity threshold 120b ", represents ECC and draws
The error correcting capability held up, wrong bit quantity be less than the value code word can error correction, so as to return correct data to master
Machine；It is on the contrary then correct data can not be obtained；It is seen that all data can quilt under normal temperature read-write model
It is correct to read；It is written in normal temperature, in the case of low temperature is read, has a certain proportion of data can not be by error correction, thus permanently
Property report host data damage.
As shown in figure 4, when SSD powers on rear full speed operation, temperature versus time curve；Environment temperature is set as permanent
Fixed -5 °, when SSD is in full speed operation state, the power consumption of SOC, NAND are larger, so that its temperature gradually rises, in system
After stabilization, SSD internal temperature can be much higher than environment temperature the difference of 20-40 (typical case have), by the temperature curve that illustrates it is found that such as
Fruit allows SSD full speed operation when system just powers on, and after its temperature rises to certain threshold value (such as 0 degree) or more, then starts normal
Respective host read-write requests can guarantee the correctness of data.
Wherein, " warm-up " stage before temperature rises to threshold value can under system to avoid the influence to user data
It is interior to fill invalid data to retain some physical blocks；" warm-up " stage, SSD read inside data and ignore ECC decoding, i.e., not
It is concerned about data correctness, and SSD work is only allowed to promote SSD internal temperature in power consumption higher state at full capacity.
As shown in figure 5, the invention also discloses a kind of solid state hard disks to be in the activation system under low temperature condition, including power on
Unit 10, runs access unit 20, and the first judging unit 30 closes reading unit 40, second judgment unit 50, and opens and establish
Response unit 60；
Upper electric unit 10 is powered on for host to SSD；
Access unit 20 is run, is brought into operation for loading firmware inside SSD, SSD firmware carries out peripheral hardware initialization, and visits
It asks temperature sensor, obtains onboard temperature；
First judging unit 30, for judging whether onboard temperature is lower than threshold value；
Reading unit 40 is closed, for closing ECC Engine, and continues to read the invalid filling data in reserved block；
Second judgment unit 50, for judging whether onboard temperature reaches preset threshold；
Opening establishes response unit 60, is used to open ECC Engine, establishes physical connection, reconstructed mapped inside SSD with host
Table, after completing mapping table reconstruction, normal response host read write command.
Wherein, operation access unit 20 includes operation module 21, initialization module 22 and access modules 23；
Module 21 is run, is brought into operation for loading firmware inside SSD；
Initialization module 22 carries out peripheral hardware initialization for SSD firmware；
Access modules 23 obtain onboard temperature for accessing temperature sensor.
Wherein, opening and establishing response unit 60 includes opening to establish module 61 and respond module 62；
Opening establishes module 61, is used to open ECC Engine, establishes physical connection, reconstructed mapped table inside SSD with host；
Respond module 62 is used for after completing mapping table and rebuilding, normal response host read write command.
The present invention is by monitoring onboard temperature in the rigid electrifying startup of the system time of running, especially host, when onboard temperature
When degree is lower than threshold value, initiates to read the sky of invalid data, make SSD work under high power consumption state, promote onboard temperature, and then make
NAND work is obtained in suitable temperature range, correctly reads data, is avoided before being lower than secure threshold just to effective on NAND
Data are written and read, and then are avoided valid data and be flagged as mistake, and system data is caused to be lost.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of solid state hard disk is in the starting method under low temperature condition, which comprises the following steps:
S1, host are powered on to SSD；
Loading firmware brings into operation inside S2, SSD, and SSD firmware carries out peripheral hardware initialization, and accesses temperature sensor, obtains plate
Carry temperature；
S3, judges whether onboard temperature is lower than threshold value；If so, into S4；If it is not, then entering S6；
S4 closes ECC Engine, and continues to read the invalid filling data in reserved block；
S5, judges whether onboard temperature reaches preset threshold；If so, into S6；If it is not, then returning to S4；
S6 opens ECC Engine, establishes physical connection with host, reconstructed mapped table inside SSD, completes after mapping table rebuilds, normally
Respond host read write command.
2. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
S2 includes:
Loading firmware brings into operation inside S21, SSD；
S22, SSD firmware carry out peripheral hardware initialization；
S23, SSD access temperature sensor, obtain onboard temperature.
3. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
In S2, the outer I2C interface for being set as temperature sensor.
4. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
In S3, the threshold value is -5 °.
5. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
S4 further includes ignoring data correctness.
6. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
In S5, the preset threshold is 0 °.
7. a kind of solid state hard disk according to claim 1 is in the starting method under low temperature condition, which is characterized in that described
S6 includes:
S61 opens ECC Engine, establishes physical connection, reconstructed mapped table inside SSD with host；
S62, after completing mapping table reconstruction, normal response host read write command.
8. a kind of solid state hard disk is in the activation system under low temperature condition, which is characterized in that including upper electric unit, operation access is single
Member, the first judging unit close reading unit, second judgment unit, and open and establish response unit；
The upper electric unit is powered on for host to SSD；
The operation access unit brings into operation for loading firmware inside SSD, and SSD firmware carries out peripheral hardware initialization, and accesses
Temperature sensor obtains onboard temperature；
First judging unit, for judging whether onboard temperature is lower than threshold value；
The closing reading unit for closing ECC Engine, and continues to read the invalid filling data in reserved block；
The second judgment unit, for judging whether onboard temperature reaches preset threshold；
The opening establishes response unit, is used to open ECC Engine, establishes physical connection, reconstructed mapped inside SSD with host
Table, after completing mapping table reconstruction, normal response host read write command.
9. a kind of solid state hard disk according to claim 8 is in the activation system under low temperature condition, which is characterized in that described
Running access unit includes operation module, initialization module and access modules；
The operation module brings into operation for loading firmware inside SSD；
The initialization module carries out peripheral hardware initialization for SSD firmware；
The access modules obtain onboard temperature for accessing temperature sensor.
10. a kind of solid state hard disk according to claim 8 is in the activation system under low temperature condition, which is characterized in that institute
Stating opening and establishing response unit includes opening to establish module and respond module；
The opening establishes module, is used to open ECC Engine, establishes physical connection, reconstructed mapped table inside SSD with host；
The respond module is used for after completing mapping table and rebuilding, normal response host read write command.
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Cited By (2)
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| CN110334034A (en) * | 2019-07-12 | 2019-10-15 | 深圳忆联信息系统有限公司 | Method, apparatus, computer equipment and the storage medium of mapping table dynamically load |
| CN110427279A (en) * | 2019-07-19 | 2019-11-08 | 深圳忆联信息系统有限公司 | A kind of method and system for the Raid parity data restoring to write band |
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Application publication date: 20190212 |