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Starting method and system of solid-state hard disk under the condition of low temperature

A solid-state hard drive and system startup technology, applied in hardware monitoring, electrical digital data processing, response error generation, etc., can solve problems such as OS data corruption, system startup failure, data error, etc., to achieve the effect of increasing the onboard temperature

Inactive Publication Date: 2019-02-12
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of NAND, when the data in NAND is written and read at different temperatures, data errors will result. In some specific industry application scenarios, it is necessary to load the OS at room temperature or high temperature, and then it may be stored at low temperature. state (such as -10 degrees) ambient temperature; in this state, due to the large temperature difference between writing and reading, the pre-written OS data will be damaged, causing the system to fail to start. Further, the internal SSD for Reading failed data will be permanently marked as a data error, so even if the subsequent system recovers to a suitable temperature, it will not be able to return correct data, so it cannot meet the demand

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  • Starting method and system of solid-state hard disk under the condition of low temperature

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Embodiment Construction

[0050] In order to fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and illustrated below in conjunction with specific examples, but not limited thereto.

[0051] Such as Figure 1 to Figure 5 Specific examples shown, where, as figure 1 As shown, the typical read flow diagram inside the SSD:

[0052] 1. The host submits the read command to the front-end module of the SSD;

[0053] 2. The SSD front-end module divides commands into mapping units (typically 4KB) and submits them to the read-write buffer module;

[0054] 3. The read-write buffer management module allocates space from Memory (typically such as DRAM);

[0055] 4. Submit the operation request to the mapping table management module

[0056] 5. The mapping table management module is responsible for converting logical addresses into NAND physical addresses;

[0057] 6. Submit the operation request to the back-end module, and...

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Abstract

The invention relates to a starting method and system of a solid-state hard disk under the condition of low temperature. The method comprises the following steps of: S1, using the host computer to power up the SSD; S2, starting to run the SSD internal loading firmware, initializing the peripheral equipment of the SSD firmware, and accessing a temperature sensor to obtain the on-board temperature;3, judging whether the on-board temperature is low than the threshold value; S4, shutting down an ECC engine and continuously reading the invalid fill data in the reserved block; 5, judging whether that on-board temperature reach a preset threshold value; S6, turning on the ECC engine, eatablishing the physical connection with host computer, rebuilding mapping table inside SSD, after rebuilding the mapping table, normally responding to the host computer to read and write commands. When the system is just powered on, the invention monitors the on-board temperature, when the on-board temperatureis lower than the threshold value, the invention initiates the empty reading of invalid data, causes the SSD to work in the high power consumption state, raises the on-board temperature, causes the NAND to work in the suitable temperature range, and correctly reads the data.

Description

technical field [0001] The invention relates to the field of solid-state hard disk startup, and more specifically refers to a startup method and system for a solid-state hard disk under low temperature conditions. Background technique [0002] SSD (Solid State Drive) has been widely used in various occasions, and is gradually replacing traditional hard drives due to its excellent performance, power consumption, and environmental adaptability. Due to the characteristics of NAND, when the data in NAND is written and read at different temperatures, data errors will result. In some specific industry application scenarios, it is necessary to load the OS at room temperature or high temperature, and then it may be stored at low temperature. state (such as -10 degrees) ambient temperature; in this state, due to the large temperature difference between writing and reading, the pre-written OS data will be damaged, causing the system to fail to start. Further, the internal SSD for Dat...

Claims

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Application Information

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IPC IPC(8): G06F9/4401G06F11/10G06F11/30
CPCG06F9/4411G06F11/1044G06F11/3037G06F11/3058Y02D10/00
Inventor 王猛杨树浩徐伟华
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD
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