CN112346660B - Data storage method and device, and data reading method and device - Google Patents

Data storage method and device, and data reading method and device Download PDF

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Publication number
CN112346660B
CN112346660B CN202011270912.2A CN202011270912A CN112346660B CN 112346660 B CN112346660 B CN 112346660B CN 202011270912 A CN202011270912 A CN 202011270912A CN 112346660 B CN112346660 B CN 112346660B
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data
solid state
state disk
stored
transmission interface
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CN112346660A (en
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张奕淦
邢冀鹏
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Zeshi Technology Wuhan Co ltd
Beijing Zeshi Technology Co ltd
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Zeshi Technology Wuhan Co ltd
Beijing Zeshi Technology Co ltd
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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
    • G06F3/0625—Power saving in storage systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3275—Power saving in memory, e.g. RAM, cache
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • G06F13/1668—Details of memory controller
    • 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
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0658—Controller construction arrangements
    • 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
    • G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
    • 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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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

The application discloses a data storage method and device and a data reading method and device. The method comprises the following steps: judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is data to be stored to a solid state disk in a host; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is smaller than a first preset value; and under the condition that the in-band transmission interface is in a closed state, storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk. The application solves the problem of higher power consumption when the solid state disk transmits data with smaller data volume in the related technology.

Description

Data storage method and device, and data reading method and device
Technical Field
The application relates to the technical field of solid state disks, in particular to a data storage method and device and a data reading method and device.
Background
Solid state disk (Solid STATE DISK, SSD) generally has two modes of operation, one is a normal mode of operation for storing and reading data, and the other is a mode of operation without data storage and reading.
In a normal working mode of the SSD, each module is in an open state, power consumption is high, in the using process of the SSD, very small data storage operation is carried out on the SSD in many times, but in the related technology, when data storage operation or reading operation is carried out, even if the data quantity is very small, all the modules are required to be awakened, and the SSD enters a full working power consumption mode.
Aiming at the problem that the power consumption is higher when the solid state disk in the related technology transmits data with smaller data quantity, no effective solution is proposed at present.
Disclosure of Invention
The application provides a data storage method and device and a data reading method and device, which are used for solving the problem of higher power consumption when a solid state disk transmits data with smaller data volume in the related technology.
According to one aspect of the present application, a data storage method is provided. The method comprises the following steps: judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is data to be stored to a solid state disk in a host; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is smaller than a first preset value; and under the condition that the in-band transmission interface is in a closed state, storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk.
Optionally, storing the data to be stored in the solid state disk through the out-of-band transmission interface of the solid state disk when the in-band transmission interface is in the off state includes: and under the condition that the NAND flash memory of the solid state disk is in a starting state, transmitting the data to be stored to a controller of the solid state disk through an out-of-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
Optionally, storing the data to be stored in the solid state disk through the out-of-band transmission interface of the solid state disk when the in-band transmission interface is in the off state includes: and under the condition that the NAND flash memory of the solid state disk is in a closed state, transmitting the data to be stored to a controller of the solid state disk through an out-of-band transmission interface, and storing the data to be stored into the NOR flash memory of the solid state disk through the controller of the solid state disk.
Optionally, in the case that the NAND flash memory of the solid state disk is in a closed state, after the data to be stored is stored in the NOR flash memory of the solid state disk by the controller of the solid state disk, the data storage method further includes: after the NAND flash is activated, data to be stored is transferred from the NOR flash into the NAND flash.
Optionally, after determining whether the data amount of the data to be stored is smaller than the first preset value, the data storage method further includes: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is larger than or equal to a first preset value; and under the condition that the in-band transmission interface is in a closed state, starting the in-band transmission interface, and storing the data to be stored into the solid state disk through the in-band transmission interface.
Optionally, storing the data to be stored in the solid state disk through the in-band transmission interface includes: transmitting data to be stored to a controller of the solid state disk through an in-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a starting state, and storing the data to be stored to the NAND flash memory through the controller of the solid state disk; and under the condition that the NAND flash memory of the solid state disk is in a closed state, starting the NAND flash memory, transmitting data to be stored to a controller of the solid state disk through an in-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
Optionally, the out-of-band transmission interface is: UART interface, or I2C interface.
Optionally, the in-band transmission interface is: SATA interface, or PCIe interface.
According to one aspect of the present application, a data reading method is provided. The method comprises the following steps: judging whether the data quantity of the data to be read is smaller than a second preset value, wherein the data to be read is the data to be read to the host in the solid state disk; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is smaller than a second preset value; and under the condition that the in-band transmission interface is in a closed state, reading the data to be read into the host through the out-of-band transmission interface of the solid state disk.
Optionally, the data to be read is stored in the NAND flash memory of the solid state disk, and reading the data to be read into the host through the out-of-band transmission interface of the solid state disk includes: and the data to be read is moved from the NAND flash memory to the out-of-band transmission interface through the controller of the solid state disk, and is read into the host through the out-of-band transmission interface.
Optionally, after determining whether the data amount of the data to be read is smaller than the second preset value, the data reading method further includes: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is larger than or equal to a second preset value; and under the condition that the in-band transmission interface is in a closed state, opening the in-band transmission interface, and reading the data to be read into the host through the in-band transmission interface.
According to another aspect of the present application, a data storage device is provided. The device comprises: the first judging unit is used for judging whether the data quantity of the data to be stored is smaller than a first preset value, wherein the data to be stored is the data to be stored to the solid state disk in the host; the second judging unit is used for judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be stored is smaller than a first preset value; the first storage unit is used for storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state.
According to another aspect of the present application, there is provided a data reading apparatus. The device comprises: the fourth judging unit is used for judging whether the data quantity of the data to be read is smaller than a second preset value, wherein the data to be read is the data to be read to the host in the solid state disk; a fifth judging unit, configured to judge whether an in-band transmission interface of the solid state disk is in a closed state when a data amount of data to be read is smaller than a second preset value; the first reading unit is used for reading the data to be read into the host through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state.
According to another aspect of the embodiments of the present invention, there is also provided a nonvolatile storage medium including a stored program, where the program when executed controls a device in which the nonvolatile storage medium is located to execute a data storage method.
According to another aspect of the embodiment of the present invention, there is also provided an electronic device including a processor and a memory; the memory has stored therein computer readable instructions, and the processor is configured to execute the computer readable instructions, wherein the computer readable instructions when executed perform a data storage method.
According to the application, the following steps are adopted: judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is data to be stored to a solid state disk in a host; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is smaller than a first preset value; under the condition that the in-band transmission interface is in a closed state, the data to be stored is stored into the solid state disk through the out-of-band transmission interface of the solid state disk, so that the problem that the power consumption is high when the solid state disk transmits data with smaller data size in the related technology is solved. The data to be stored is transmitted through the out-of-band transmission interface of the solid state disk, so that the effect of reducing the operation power consumption when the solid state disk stores data with smaller data size is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a flow chart of a data storage method provided in accordance with an embodiment of the present application;
fig. 2 is a schematic structural diagram of a solid state disk in a data storage method according to an embodiment of the present application;
FIG. 3 is a flow chart of another data storage method provided in accordance with an embodiment of the present application;
FIG. 4 is a flow chart of a data reading method provided according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a data storage device provided in accordance with an embodiment of the present application;
fig. 6 is a schematic diagram of a data reading apparatus according to an embodiment of the present application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present application, there is provided a data storage method.
Fig. 1 is a flowchart of a data storage method according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:
Step S102, judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is the data to be stored to the solid state disk in the host.
Specifically, whether the data to be stored in the host is smaller than a first preset value is judged, namely whether the storage operation of the solid state disk is a data storage operation with small data size is judged.
For example, editing a WORD document stored in the solid state disk on a host, and storing the edited document, if the edited document is stored, then making small changes to the document, and storing the changed document, namely, making small data size data storage operation to the solid state disk.
Step S104, judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be stored is smaller than a first preset value.
It should be noted that the in-band transmission interface of the solid state disk is a main interface between the host and the solid state disk for storing or reading data.
Specifically, after a preset time period of the storage operation of the solid state disk, if no data access operation exists, the solid state disk enters a dormant state, and the in-band transmission interface and the NANAN flash memory are closed.
Optionally, in the data storage method provided by the embodiment of the present application, the in-band transmission interface is: SATA interface, or PCIe interface.
SATA, which is abbreviated as SERIAL ATA, is serial ATA, and is mainly used for data transmission between a motherboard and a mass storage device.
PCIe, PERIPHERAL COMPONENT INTERCONNECT EXPRESS, is a high-speed serial computer expansion bus standard, and belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission.
And step S106, under the condition that the in-band transmission interface is in a closed state, the data to be stored is stored in the solid state disk through the out-of-band transmission interface of the solid state disk.
It should be noted that the out-of-band transmission interface of the solid state disk is an interface between the host and the solid state disk for transmitting out-of-band control signals.
By using the out-of-band transmission interface to transmit a small amount of data, the in-band transmission interface can be put into sleep, so that the running power consumption of the solid state disk is saved.
Optionally, in the data storage method provided by the embodiment of the present application, the out-of-band transmission interface is: UART interface, or I2C interface.
The UART is Universal Asynchronous Receiver/Transmitter, is a universal asynchronous receiver Transmitter, is a universal serial data bus, and is used for asynchronous communication, and data to be transmitted are converted between serial communication and parallel communication.
I2C is a simple, bi-directional two-wire synchronous serial bus interface.
According to the data storage method provided by the embodiment of the application, whether the data amount of the data to be stored is smaller than the first preset value is judged, wherein the data to be stored is the data to be stored to the solid state disk in the host; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is smaller than a first preset value; under the condition that the in-band transmission interface is in a closed state, the data to be stored is stored into the solid state disk through the out-of-band transmission interface of the solid state disk, so that the problem that the power consumption is high when the solid state disk transmits data with smaller data size in the related technology is solved. The data to be stored is transmitted through the out-of-band transmission interface of the solid state disk, so that the effect of reducing the operation power consumption when the solid state disk stores data with smaller data size is achieved.
As shown in fig. 2, a schematic structural diagram of a solid state disk in the data storage method provided by the embodiment of the application is shown, the solid state disk is connected with a host through an in-band transmission interface and an out-of-band transmission interface, wherein the in-band transmission interface is used for transmitting data to be stored or read, specifically, when the data is stored, a port of a NAND flash memory is moved to a port of the in-band transmission interface through data of a solid state disk controller, and the data is stored in the NAND flash memory, so that the data storage is completed.
The out-of-band transmission interface is used for transmitting control signals, particularly when the solid state disk is driven, the control signals are moved to the SPI interface through the solid state disk controller and transmitted to the SPI NOR flash memory, so that a driving program stored in the SPI NOR flash memory is started, and the driving of the solid state disk is completed.
Optionally, in the data storage method provided by the embodiment of the present application, when the in-band transmission interface is in the off state, storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk includes: and under the condition that the NAND flash memory of the solid state disk is in a starting state, transmitting the data to be stored to a controller of the solid state disk through an out-of-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
Specifically, when data with large data volume is stored, if the data is transmitted from the host to the solid state disk, the in-band transmission interface is closed, but when the NAND flash memory is not in the dormant state, the data to be stored can be stored in the NAND flash memory from the out-of-band transmission interface through the controller of the solid state disk.
In the case that the data to be stored exists in the preset time period, the solid state disk enters the dormant state, optionally, in the data storage method provided by the embodiment of the application, when the in-band transmission interface is in the closed state, storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk includes: and under the condition that the NAND flash memory of the solid state disk is in a closed state, transmitting the data to be stored to a controller of the solid state disk through an out-of-band transmission interface, and storing the data to be stored into the NOR flash memory of the solid state disk through the controller of the solid state disk.
Specifically, the solid state disk enters a dormant state, namely, the in-band transmission interface and the NAND flash memory are both in a closed state, and in this case, the NAND module can be dormant by storing data with small data quantity in the SPI NOR flash memory, so that the running power consumption of the solid state disk is saved.
It should be noted that, in the data storage method provided by the embodiment of the present application, after the data to be stored is stored in the NOR flash memory of the solid state disk by the controller of the solid state disk under the condition that the NAND flash memory of the solid state disk is in the off state, the data storage method further includes: after the NAND flash is activated, data to be stored is transferred from the NOR flash into the NAND flash.
Specifically, after the solid state disk is in the sleep state, the NAND flash memory is started, and then the data to be stored is transferred from the NOR flash memory to the NAND flash memory.
Optionally, in the data storage method provided by the embodiment of the present application, after determining whether the data amount of the data to be stored is smaller than a first preset value, the data storage method further includes: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of data to be stored is larger than or equal to a first preset value; and under the condition that the in-band transmission interface is in a closed state, starting the in-band transmission interface, and storing the data to be stored into the solid state disk through the in-band transmission interface.
Optionally, in the data storage method provided by the embodiment of the present application, storing the data to be stored in the solid state disk through the in-band transmission interface includes: transmitting data to be stored to a controller of the solid state disk through an in-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a starting state, and storing the data to be stored to the NAND flash memory through the controller of the solid state disk; and under the condition that the NAND flash memory of the solid state disk is in a closed state, starting the NAND flash memory, transmitting data to be stored to a controller of the solid state disk through an in-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
Specifically, when the data amount of the data to be stored is greater than or equal to a first preset value, each module of the solid state disk needs to be awakened to complete data storage, specifically, when the in-band transmission interface is in a closed state, the in-band transmission interface is started, and when the NAND flash memory is in a dormant state, the NAND flash memory is started, so that the storage of data with large data amount is realized.
Fig. 3 is a flowchart of another data storage method according to an embodiment of the present application. As shown in fig. 3, the method comprises the steps of:
and judging and grading the data throughput according to the interface rate, and for high throughput, entering a normal working mode, and starting all modules.
For low throughput, a low power consumption mode is entered, partial in-band modules are closed, and data transmission is completed, and specifically, the low power consumption mode is divided into 3 modes of L1, L2 and L3 according to the level of low throughput.
Wherein, low power consumption mode L1: and enabling in-band transmission, closing the NAND flash memory, and temporarily storing data in the SPI NOR flash memory. Low power consumption mode L2: and informing the host, closing in-band transmission, enabling out-of-band signal transmission data, closing the NAND flash memory, and storing the data in the SPI NOR flash memory. Low power consumption mode L3: and informing the host, closing in-band transmission, enabling out-of-band signal transmission data, and storing the data in the NAND flash memory.
Further, as the data throughput rises, the solid state disk exits the low power consumption mode and starts the full power consumption mode to enter a normal working state under the condition that the data throughput reaches the preset throughput.
By the embodiment of the application, when a small data storage operation scene is made for the solid state disk, the solid state disk can also enter different low-power consumption modes, and the problem that the whole solid state disk is required to be awakened even when the solid state disk is used for storing small data is solved, so that the standby time of a host can be effectively prolonged, and the overall power consumption of the solid state disk is greatly reduced.
Fig. 4 is a flowchart of a data reading method according to an embodiment of the present application. As shown in fig. 4, the method comprises the steps of:
step S402, judging whether the data amount of the data to be read is smaller than a second preset value, wherein the data to be read is the data to be read to the host in the solid state disk.
Specifically, whether the data amount of the data to be read is smaller than a first preset value is judged, namely whether the read operation of the solid state disk is a data read operation of small data amount is judged.
Step S404, judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is smaller than a second preset value.
It should be noted that the in-band transmission interface of the solid state disk is a main interface between the host and the solid state disk for storing or reading data.
Specifically, after a preset period of time for executing a read operation on the solid state disk, if no data read operation exists, the solid state disk enters a sleep state, and the in-band transmission interface and the NANAN flash memory are closed.
In step S406, the data to be read is read into the host through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in the off state.
It should be noted that the out-of-band transmission interface of the solid state disk is an interface between the host and the solid state disk for transmitting out-of-band control signals.
By using the out-of-band transmission interface to transmit a small amount of data, the in-band interface can be put into sleep, so that the running power consumption of the solid state disk is saved.
According to the data reading method provided by the embodiment of the application, whether the data amount of the data to be read is smaller than the second preset value is judged, wherein the data to be read is the data to be read to the host in the solid state disk; judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is smaller than a second preset value; under the condition that the in-band transmission interface is in a closed state, the data to be read is read into the host through the out-of-band transmission interface of the solid state disk, so that the problem that the power consumption is high when the solid state disk transmits data with smaller data quantity in the related technology is solved. The data to be read is transmitted through the out-of-band transmission interface of the solid state disk, so that the effect of reducing the operation power consumption when the solid state disk reads the data with smaller data size is achieved.
Optionally, in the data reading method provided by the embodiment of the present application, the data to be read is stored in a NAND flash memory of the solid state disk, and when the in-band transmission interface is in a closed state, reading the data to be read to the host through the out-of-band transmission interface of the solid state disk includes: and the data to be read is moved from the NAND flash memory to the out-of-band transmission interface through the controller of the solid state disk, and is read into the host through the out-of-band transmission interface.
Specifically, since the in-band transmission interface is in a closed state, the data to be read is moved from the port of the NAND flash memory to the port of the out-of-band transmission interface through the solid state disk controller, and the data to be read is read into the host through the out-of-band transmission interface.
Optionally, in the data reading method provided in the embodiment of the present application, after determining whether the data amount of the data to be read is smaller than the second preset value, the data reading method further includes: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is larger than or equal to a second preset value; and under the condition that the in-band transmission interface is in a closed state, opening the in-band transmission interface, and reading the data to be read into the host through the in-band transmission interface.
Specifically, when the data volume of the data to be read is greater than or equal to a second preset value, each module of the solid state disk needs to be awakened to complete data reading, specifically, when the in-band transmission interface is in a closed state, the in-band transmission interface is started, so that data with large data volume is read.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
The embodiment of the application also provides a data storage device, and the data storage device of the embodiment of the application can be used for executing the data storage method provided by the embodiment of the application. The following describes a data storage device provided by an embodiment of the present application.
FIG. 5 is a schematic diagram of a data storage device according to an embodiment of the application. As shown in fig. 5, the apparatus includes: a first judgment unit 51, a second judgment unit 52, and a first storage unit 53.
Specifically, the first determining unit 51 is configured to determine whether the data amount of the data to be stored is smaller than a first preset value, where the data to be stored is data to be stored in the solid state disk in the host.
The second determining unit 52 is configured to determine whether the in-band transmission interface of the solid state disk is in a closed state when the data amount of the data to be stored is smaller than a first preset value.
The first storage unit 53 is configured to store data to be stored in the solid state disk through the out-of-band transmission interface of the solid state disk when the in-band transmission interface is in a closed state.
According to the data storage device provided by the embodiment of the application, whether the data amount of the data to be stored is smaller than the first preset value is judged by the first judging unit 51, wherein the data to be stored is the data to be stored in the solid state disk in the host; the second judging unit 52 judges whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data amount of the data to be stored is smaller than a first preset value; the first storage unit 53 stores the data to be stored in the solid state disk through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state, so that the problem that the power consumption is higher when the solid state disk transmits data with smaller data amount in the related art is solved, the data to be stored is transmitted through the out-of-band transmission interface of the solid state disk, and the effect of reducing the operation power consumption when the solid state disk stores data with smaller data amount is achieved.
Optionally, in the data storage device provided in the embodiment of the present application, the first storage unit 53 includes: the first storage module is used for transmitting the data to be stored to the controller of the solid state disk through the out-of-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a starting state, and storing the data to be stored to the NAND flash memory through the controller of the solid state disk.
Optionally, in the data storage device provided in the embodiment of the present application, the first storage unit 53 includes: the second storage module is used for transmitting the data to be stored to the controller of the solid state disk through the out-of-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a closed state, and storing the data to be stored to the NOR flash memory of the solid state disk through the controller of the solid state disk.
Optionally, in the data storage device provided in the embodiment of the present application, the data storage device further includes: the second storage unit is used for transmitting the data to be stored from the NOR flash memory to the NAND flash memory after the NAND flash memory is started after the data to be stored is stored into the NOR flash memory of the solid state disk through the controller of the solid state disk under the condition that the NAND flash memory of the solid state disk is in a closed state.
Optionally, in the data storage device provided in the embodiment of the present application, the data storage device further includes: the third judging unit is used for judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data amount of the data to be stored is larger than or equal to a first preset value after judging whether the data amount of the data to be stored is smaller than the first preset value or not; and the third storage unit is used for starting the in-band transmission interface under the condition that the in-band transmission interface is in a closed state, and storing the data to be stored into the solid state disk through the in-band transmission interface.
Optionally, in the data storage device provided in the embodiment of the present application, the third storage unit includes: the third storage module is used for transmitting the data to be stored to the controller of the solid state disk through the in-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a starting state, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk; the fourth storage module is used for starting the NAND flash memory under the condition that the NAND flash memory of the solid state disk is in a closed state, transmitting data to be stored to the controller of the solid state disk through the in-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
Optionally, in the data storage device provided by the embodiment of the present application, the out-of-band transmission interface is: UART interface, or I2C interface.
Optionally, in the data storage device provided by the embodiment of the present application, the in-band transmission interface is: SATA interface, or PCIe interface.
The embodiment of the application also provides a data reading device, and the data reading device can be used for executing the data reading method provided by the embodiment of the application. The following describes a data reading device provided in an embodiment of the present application.
Fig. 6 is a schematic diagram of a data reading apparatus according to an embodiment of the present application. As shown in fig. 6, the apparatus includes: a fourth judgment unit 61, a fifth judgment unit 62, and a first reading unit 63.
Specifically, the fourth determining unit 61 is configured to determine whether the data amount of the data to be read is smaller than a second preset value, where the data to be read is data to be read to the host in the solid state disk;
a fifth judging unit 62, configured to judge whether the in-band transmission interface of the solid state disk is in a closed state if the data amount of the data to be read is smaller than a second preset value;
the first reading unit 63 is configured to read the data to be read to the host through the out-of-band transmission interface of the solid state disk when the in-band transmission interface is in a closed state.
In the data reading device provided by the embodiment of the application, the fourth judging unit 61 judges whether the data amount of the data to be read is smaller than the second preset value, wherein the data to be read is the data to be read to the host in the solid state disk; the fifth judging unit 62 judges whether the in-band transmission interface of the solid state disk is in a closed state or not when the data amount of the data to be read is smaller than a second preset value; under the condition that the in-band transmission interface is in a closed state, the first reading unit 63 reads data to be read into the host through the out-of-band transmission interface of the solid state disk, so that the problem that power consumption is high when the solid state disk transmits data with smaller data size in the related art is solved, the data to be stored is transmitted through the out-of-band transmission interface of the solid state disk, and the effect of reducing operation power consumption when the solid state disk stores data with smaller data size is achieved.
Optionally, in the data reading device provided in the embodiment of the present application, the first reading unit 63 includes: the reading module is used for moving the data to be read from the NAND flash memory to the out-of-band transmission interface through the controller of the solid state disk, and reading the data to be read into the host through the out-of-band transmission interface.
Optionally, in the data reading device provided in the embodiment of the present application, the data reading device further includes: the sixth judging unit is configured to judge whether the in-band transmission interface of the solid state disk is in a closed state when the data amount of the data to be read is greater than or equal to a second preset value after judging whether the data amount of the data to be read is less than the second preset value; the second reading unit is used for starting the in-band transmission interface under the condition that the in-band transmission interface is in a closed state, and reading the data to be read into the host through the in-band transmission interface.
The data storage device includes a processor and a memory, the first judging unit 51, the second judging unit 52, the first storing unit 53, and the like are stored as program units in the memory, and the processor executes the program units stored in the memory to realize the corresponding functions.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel can be provided with one or more than one kernel, and the problem of higher power consumption when the solid state disk in the related technology transmits data with smaller data size is solved by adjusting kernel parameters.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
The embodiment of the application also provides a nonvolatile storage medium, which comprises a stored program, wherein the program is used for controlling equipment where the nonvolatile storage medium is located to execute a data storage method when running.
The embodiment of the application also provides an electronic device, which comprises a processor and a memory; the memory has stored therein computer readable instructions, and the processor is configured to execute the computer readable instructions, wherein the computer readable instructions when executed perform a data storage method. The electronic device herein may be a server, a PC, a PAD, a mobile phone, etc.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (13)

1. A method of data storage, comprising:
judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is data to be stored to a solid state disk in a host;
judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be stored is smaller than the first preset value;
Under the condition that the in-band transmission interface is in a closed state, storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk;
after judging whether the data amount of the data to be stored is smaller than the first preset value, the data storage method further comprises the following steps: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be stored is larger than or equal to the first preset value;
And under the condition that the in-band transmission interface is in a closed state, starting the in-band transmission interface, and storing the data to be stored into the solid state disk through the in-band transmission interface.
2. The method of claim 1, wherein storing the data to be stored into the solid state disk through the out-of-band transport interface of the solid state disk with the in-band transport interface in an off state comprises:
and under the condition that the NAND flash memory of the solid state disk is in a starting state, transmitting the data to be stored to a controller of the solid state disk through the out-of-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
3. The method of claim 1, wherein storing the data to be stored into the solid state disk through the out-of-band transport interface of the solid state disk with the in-band transport interface in an off state comprises:
And under the condition that the NAND flash memory of the solid state disk is in a closed state, transmitting the data to be stored to a controller of the solid state disk through the out-of-band transmission interface, and storing the data to be stored into the NOR flash memory of the solid state disk through the controller of the solid state disk.
4. The method according to claim 3, wherein, in a case where the NAND flash memory of the solid state disk is in a closed state, after the data to be stored is stored in the NOR flash memory of the solid state disk by the controller of the solid state disk, the data storage method further comprises:
After the NAND flash memory is started, the data to be stored is transmitted from the NOR flash memory to the NAND flash memory.
5. The method of claim 1, wherein storing the data to be stored into the solid state disk through the in-band transport interface comprises:
transmitting the data to be stored to a controller of the solid state disk through the in-band transmission interface under the condition that the NAND flash memory of the solid state disk is in a starting state, and storing the data to be stored to the NAND flash memory through the controller of the solid state disk;
And under the condition that the NAND flash memory of the solid state disk is in a closed state, starting the NAND flash memory, transmitting the data to be stored to a controller of the solid state disk through the in-band transmission interface, and storing the data to be stored into the NAND flash memory through the controller of the solid state disk.
6. The method of claim 1, wherein the out-of-band transmission interface is: UART interface, or I2C interface.
7. The method of claim 1, wherein the in-band transport interface is: SATA interface, or PCIe interface.
8. A data reading method, comprising:
judging whether the data quantity of the data to be read is smaller than a second preset value, wherein the data to be read is data to be read to a host in the solid state disk;
Judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is smaller than the second preset value;
Reading the data to be read into the host through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state;
The third judging unit is used for judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is larger than or equal to a second preset value after judging whether the data volume of the data to be read is smaller than the second preset value or not;
And the third storage unit is used for starting the in-band transmission interface under the condition that the in-band transmission interface is in a closed state, and reading the data to be read into the host through the in-band transmission interface.
9. The method of claim 8, wherein the data to be read is stored in the NAND flash memory of the solid state disk, and reading the data to be read into the host through the out-of-band transmission interface of the solid state disk if the in-band transmission interface is in a closed state comprises:
And moving the data to be read from the NAND flash memory to the out-of-band transmission interface through the controller of the solid state disk, and reading the data to be read into the host through the out-of-band transmission interface.
10. A data storage device, comprising:
The first judging unit is used for judging whether the data amount of the data to be stored is smaller than a first preset value, wherein the data to be stored is the data to be stored to the solid state disk in the host;
The second judging unit is used for judging whether the in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be stored is smaller than the first preset value;
The first storage unit is used for storing the data to be stored into the solid state disk through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state;
A sixth judging unit, configured to judge whether an in-band transmission interface of the solid state disk is in a closed state when the data amount of the data to be stored is greater than or equal to a first preset value after judging whether the data amount of the data to be stored is less than the first preset value;
And the second reading unit is used for starting the in-band transmission interface under the condition that the in-band transmission interface is in a closed state, and storing the data to be stored into the solid state disk through the in-band transmission interface.
11. A data reading apparatus, comprising:
the fourth judging unit is used for judging whether the data quantity of the data to be read is smaller than a second preset value, wherein the data to be read is the data to be read to the host in the solid state disk;
A fifth judging unit, configured to judge whether an in-band transmission interface of the solid state disk is in a closed state when the data amount of the data to be read is smaller than the second preset value;
The first reading unit is used for reading the data to be read into the host through the out-of-band transmission interface of the solid state disk under the condition that the in-band transmission interface is in a closed state;
After judging whether the data amount of the data to be read is smaller than the second preset value, the data reading method further comprises the following steps: judging whether an in-band transmission interface of the solid state disk is in a closed state or not under the condition that the data volume of the data to be read is larger than or equal to the second preset value;
and under the condition that the in-band transmission interface is in a closed state, starting the in-band transmission interface, and reading the data to be read into the host through the in-band transmission interface.
12. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein the program, when run, controls a device in which the non-volatile storage medium is located to perform the data storage method of any one of claims 1 to 7.
13. An electronic device comprising a processor and a memory, the memory having stored therein computer readable instructions for executing the computer readable instructions, wherein the computer readable instructions when executed perform the data storage method of any one of claims 1 to 7.
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