CN112650376A - System and method for controlling hard disk soft switch - Google Patents
System and method for controlling hard disk soft switch Download PDFInfo
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- CN112650376A CN112650376A CN202011336519.9A CN202011336519A CN112650376A CN 112650376 A CN112650376 A CN 112650376A CN 202011336519 A CN202011336519 A CN 202011336519A CN 112650376 A CN112650376 A CN 112650376A
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- 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
- G06F1/24—Resetting means
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- 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
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
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- 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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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Abstract
The invention discloses a system and a method for controlling soft switching of a hard disk, which belong to the technical field of computer hard disks and comprise the following steps: the system comprises a BMC module, a core CPU control module, a CPLD module, a hard disk power supply control module, a hard disk reset module and a hard disk interface, wherein the core CPU control module sends a hard disk control signal according to a system instruction or a CPU abnormal strategy; the BMC module sends a hard disk control signal according to a BMC remote control interface or an internal power-on strategy; the CPLD module is used for reading hard disk control signals sent by the BMC module and the core CPU control module, and controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface to complete the on-off control of the hard disk after reading the instruction. The CPLD is controlled by the CPU and the BMC, so that a soft restart mode of the hard disk is controlled, the corresponding speed of the hard disk is increased, and the requirement of the hard disk for higher access speed is met.
Description
Technical Field
The invention relates to the technical field of computer hard disks, and particularly provides a system and a method for controlling soft switching of a hard disk.
Background
The development of the server industry can not leave a storage medium, the fire speed is increased based on the data volume in the information era, and the requirement of mainstream manufacturers on the access speed of the hard disk is higher and higher at present.
The hard disk is mainly classified as an SAS (Serial Attached SCSI)/SATA (Serial ATA: Serial Advanced Technology attachment, a computer bus) hard disk and an NVME (Non-Volatile Memory express, a logical device interface specification) hard disk as a key device of the server. The server manages the hard disk according to the state of the hard disk through different controllers. And meanwhile, the in-place information and the state (positioning, fault and reconstruction) information of the hard disk are presented under a Web page of a BMC (Baseboard management controller), so that a client can conveniently monitor the state of the hard disk.
The requirements on the storage speed and the response speed of the ordinary SATA/SAS hard disk and the latest NVME hard disk based on PCIE channel transmission are higher and higher.
Disclosure of Invention
The invention mainly aims at the problems and provides a system and a method for controlling the soft switching of a hard disk.
In order to achieve the purpose, the invention provides the following technical scheme:
a system for controlling soft switching of a hard disk, the system comprising:
BMC module, core CPU control module, CPLD module, hard disk power supply control module, hard disk reset module, hard disk interface, wherein:
the core CPU control module sends a hard disk control signal according to a system instruction or a CPU abnormal strategy;
the BMC module sends a hard disk control signal according to a BMC remote control interface or an internal power-on strategy;
the CPLD module is used for reading hard disk control signals sent by the BMC module and the core CPU control module, and controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface to complete the on-off control of the hard disk after reading the instruction.
The hard disk power supply control module is 12V and is responsible for supplying power to the hard disk, and the power cannot be lost when the hard disk is restarted.
The hard disk reset module is responsible for supplying power to the hard disk and resetting when the hard disk is restarted.
The hard disk interface is responsible for connecting a hard disk, supporting a sata interface protocol or a pcie interface protocol, distributing signals related to the interface protocol to the CPLD module, and setting the CPLD end to be high-resistance during data transmission through CPLD control; and when the data is cut off, the CPLD end is subjected to forced assignment operation, and the data transmission protocol is cut off.
A method for controlling the soft switch of a hard disk comprises the following steps:
the CPLD module is used as a control core, and the hard disk power supply control module, the hard disk reset module and the hard disk interface are controlled to complete the on-off control of the hard disk by receiving a restart instruction sent by the core CPU control module and the BMC module.
The CPLD module transmits control instructions sent by the BMC module and the core CPU control module in IIC and GPIO modes and reads the control instructions;
after the control instruction is read, the hard disk soft restart is controlled by controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface, so that the hard disk is switched on and off.
And when the CPLD module receives a hard disk closing instruction, the hard disk power supply control module, the hard disk reset module and the hard disk interface are all closed, so that the hard disk is closed.
The CPLD module controls the hard disk power supply control module through an EN _12V signal and controls the hard disk reset module through an RST _ SATA signal.
The restarting instruction is a cold starting instruction, when the CPLD module receives the cold restarting instruction, the power supply of EN _12V is cut off, at the moment, the hard disk is not supplied with power, and meanwhile, the level is pulled down, and the transmission of a hard disk interface is cut off; and after waiting for the set time, the BMC module sends out a command for controlling the hard disk to be electrified.
The restarting instruction is a hot restarting instruction, when the CPLD module receives the hot restarting instruction, the level of the RST _ SATA signal is changed into low level, and meanwhile, the transmission of the hard disk interface is cut off;
after the RST _ SATA signal received by the hard disk is at a low level, the hard disk firstly enters a power-down state, the state of the hard disk is waited to be reset (the state is returned by timing or the hard disk), and the CPLD module enters a recovery state;
the CPLD module entering the recovery state is firstly reconnected with the transmission of the hard disk interface, and then the level of the hard disk reset module is pulled high to control the hard disk to enter the normal working state.
Compared with the prior art, the system and the method for controlling the hard disk soft switch have the following outstanding beneficial effects:
the CPLD is controlled by the CPU and the BMC, so that a soft restart mode of the hard disk is controlled, the corresponding speed of the hard disk is increased, and the requirement of the hard disk for higher access speed is met.
Drawings
FIG. 1 is a block diagram of a system for controlling soft switching of a hard disk according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, a system for controlling soft switching of a hard disk, the system comprising:
BMC module, core CPU control module, CPLD module, hard disk power supply control module, hard disk reset module, hard disk interface, wherein:
the core CPU control module sends a hard disk control signal according to a system instruction or a CPU abnormal strategy;
the BMC module sends a hard disk control signal according to a BMC remote control interface or an internal power-on strategy;
the CPLD module is used for reading hard disk control signals sent by the BMC module and the core CPU control module, and controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface to complete the on-off control of the hard disk after reading the instruction.
The hard disk power supply control module is 12V and is responsible for supplying power to the hard disk, and the power cannot be lost when the hard disk is restarted.
The hard disk reset module is responsible for supplying power to the hard disk and resetting when the hard disk is restarted.
The hard disk interface is responsible for connecting a hard disk, supporting a sata interface protocol or a pcie interface protocol, distributing signals related to the interface protocol to the CPLD module, and setting the CPLD end to be high-resistance during data transmission through CPLD control; and when the data is cut off, the CPLD end is subjected to forced assignment operation, and the data transmission protocol is cut off.
Example 2
A method for controlling the soft switch of a hard disk comprises the following steps:
the CPLD module is used as a control core, and the hard disk power supply control module, the hard disk reset module and the hard disk interface are controlled to complete the on-off control of the hard disk by receiving a restart instruction sent by the core CPU control module and the BMC module.
The CPLD module transmits control instructions sent by the BMC module and the core CPU control module in IIC and GPIO modes and reads the control instructions;
after the control instruction is read, the hard disk soft restart is controlled by controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface, so that the hard disk is switched on and off.
And when the CPLD module receives a hard disk closing instruction, the hard disk power supply control module, the hard disk reset module and the hard disk interface are all closed, so that the hard disk is closed.
The CPLD module controls the hard disk power supply control module through an EN _12V signal and controls the hard disk reset module through an RST _ SATA signal.
The restarting instruction is a cold starting instruction, when the CPLD module receives the cold restarting instruction, the power supply of EN _12V is cut off, at the moment, the hard disk is not supplied with power, and meanwhile, the level is pulled down, and the transmission of a hard disk interface is cut off; and after waiting for the set time, the BMC module sends out a command for controlling the hard disk to be electrified.
The restarting instruction is a hot restarting instruction, when the CPLD module receives the hot restarting instruction, the level of the RST _ SATA signal is changed into low level, and meanwhile, the transmission of the hard disk interface is cut off;
after the RST _ SATA signal received by the hard disk is at a low level, the hard disk firstly enters a power-down state, the state of the hard disk is waited to be reset (the state is returned by timing or the hard disk), and the CPLD module enters a recovery state;
the CPLD module entering the recovery state is firstly reconnected with the transmission of the hard disk interface, and then the level of the hard disk reset module is pulled high to control the hard disk to enter the normal working state.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A system for controlling soft switching of a hard disk, the system comprising:
BMC module, core CPU control module, CPLD module, hard disk power supply control module, hard disk reset module, hard disk interface, wherein:
the core CPU control module sends a hard disk control signal according to a system instruction or a CPU abnormal strategy;
the BMC module sends a hard disk control signal according to a BMC remote control interface or an internal power-on strategy;
the CPLD module is used for reading hard disk control signals sent by the BMC module and the core CPU control module, and controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface to complete the on-off control of the hard disk after reading the instruction.
2. The system of claim 1, wherein the hard disk power supply control module is 12V and is responsible for supplying power to the hard disk, and does not power down when the hard disk is restarted.
3. The system of claim 1, wherein the hard disk reset module is responsible for supplying power to the hard disk and resetting the hard disk when the hard disk is restarted.
4. The system for controlling the soft switch of the hard disk according to claim 1, wherein the hard disk interface is responsible for connecting the hard disk, supporting sata interface protocol or pcie interface protocol, and distributing signals related to the interface protocol to the CPLD module, and the CPLD is set to a high impedance end during data transmission through CPLD control; and when the data is cut off, the CPLD end is subjected to forced assignment operation, and the data transmission protocol is cut off.
5. A method for controlling a hard disk soft switch is characterized in that the method is realized by the following contents:
the CPLD module is used as a control core, and the hard disk power supply control module, the hard disk reset module and the hard disk interface are controlled to complete the on-off control of the hard disk by receiving a restart instruction sent by the core CPU control module and the BMC module.
6. The method for controlling the soft switch of the hard disk according to claim 5, wherein the CPLD module transmits the control instruction sent by the BMC module and the core CPU control module in IIC and GPIO modes and reads the control instruction;
after the control instruction is read, the hard disk soft restart is controlled by controlling the hard disk power supply control module, the hard disk reset module and the hard disk interface, so that the hard disk is switched on and off.
7. The method for controlling the soft switch of the hard disk according to claim 6, wherein the CPLD module turns off all the power supply control module, the hard disk reset module and the hard disk interface of the hard disk to realize the hard disk switch-off when receiving the hard disk switch-off command.
8. The method for controlling the soft switch of the hard disk according to claim 5, wherein the CPLD module controls the hard disk power supply control module through an EN _12V signal, and controls the hard disk reset module through an RST _ SATA signal.
9. The method according to claim 8, wherein the restart command is a cold start command, and when the CPLD module receives the cold restart command, the power supply of EN _12V is cut off, and at this time, the hard disk is not powered on, and at the same time, the level is pulled down, and the transmission of the hard disk interface is cut off; and after waiting for the set time, the BMC module sends out a command for controlling the hard disk to be electrified.
10. The method according to claim 8, wherein the restart command is a warm restart command, and when the CPLD module receives the warm restart command, the level of the RST _ SATA signal is changed to a low level, and transmission of the hard disk interface is cut off;
after the RST _ SATA signal received by the hard disk is at a low level, the hard disk firstly enters a power-down state, the hard disk waits for the state of the hard disk to be reset, and the CPLD module enters a recovery state;
the CPLD module entering the recovery state is firstly reconnected with the transmission of the hard disk interface, and then the level of the hard disk reset module is pulled high to control the hard disk to enter the normal working state.
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| CN202011336519.9A CN112650376A (en) | 2020-11-25 | 2020-11-25 | System and method for controlling hard disk soft switch |
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Application publication date: 20210413 |