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PCIE (Peripheral Component Interface Express) interface based solid-state hard disk power failure protection method and device

A solid-state hard disk, power-down protection technology, applied in the protection of storage content to prevent loss, energy-saving ICT, data processing power supply, etc., can solve the problems of shortening the service life of super capacitors, distinguishing solid-state hard disks, etc., to avoid frequent charging and discharging, and protect the use of Longevity and power saving effect

Active Publication Date: 2012-11-07
常熟它思清源科技有限公司
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Problems solved by technology

[0007] The existing technologies all use supercapacitors as the energy storage devices for the external backup power supply, but they do not distinguish between normal shutdown and abnormal power failure of the solid-state hard disk, which leads to charging and discharging the supercapacitor every time the power is turned on and off. It will greatly shorten the service life of the supercapacitor; in addition, for the power-down protection of the solid-state drive, the required time is only enough to write the data in the cache of the solid-state drive into the flash, so the time of the power-down protection should be adjustable to save power resources, but also can extend the life of the supercapacitor

Method used

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  • PCIE (Peripheral Component Interface Express) interface based solid-state hard disk power failure protection method and device
  • PCIE (Peripheral Component Interface Express) interface based solid-state hard disk power failure protection method and device
  • PCIE (Peripheral Component Interface Express) interface based solid-state hard disk power failure protection method and device

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Embodiment Construction

[0029] The present invention provides a power-down protection method and device for a solid-state hard disk. The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] First, an embodiment of the technical solution of the power-down protection method for solid-state hard drives according to the present invention will be given. The object of this embodiment is a solid-state hard drive integrated in a PCIE interface accelerator card. , a built-in static power supply and a standby power supply for selective power supply, wherein the built-in static power supply is a Standby power supply that complies with version 2.1 of the ATX power supply specification and a newer version. figure 1 The specific processing flowchart of the soli...

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Abstract

The invention provides a PCIE (Peripheral Component Interface Express) interface based solid-state hard disk power failure protection method and device. A working state of a main power supply, namely whether the main power supply normally works or is normally shut down or abnormally powered down, is judged by setting a threshold voltage for the main power supply and a built-in static power supplyand performing real-time detection; a standby power supply is turned on to provide power for a solid-state hard disk only when confirming that the main power supply is abnormally powered down, and isnot required to be turned on to provide power when detecting that the main power supply is normally shut down; and thus, frequent charging and discharging of the standby power supply are avoided, andservice life of the standby power supply is protected while electric energy is saved.

Description

technical field [0001] The invention relates to the field of computer solid-state storage, in particular to a method and device for power-down protection of a solid-state hard disk based on a PCIE interface. Background technique [0002] Power failure protection means that when the normal power supply fails, the storage device is powered by the backup power supply quickly to ensure that the data of the storage device will not be lost within a period of time. When the main power supply returns to power supply, it will automatically switch to the main power supply. [0003] For solid-state drives, the data that needs power-failure protection is often written data. For systems with high reliability requirements for data, after the main power supply fails abnormally, an uninterruptible power supply (Uninterruptible Power Supply, UPS detection) is required to continue to provide The system is powered. For example, after the main power supply fails abnormally, the memory controll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/16G06F1/30
CPCY02B60/1225Y02D10/00
Inventor 姜万成吴成百刘虹越杨越王旭光王术
Owner 常熟它思清源科技有限公司
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