CN108256359A - A kind of storage hard disk power supply protection system and guard method - Google Patents
A kind of storage hard disk power supply protection system and guard method Download PDFInfo
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- CN108256359A CN108256359A CN201810059042.0A CN201810059042A CN108256359A CN 108256359 A CN108256359 A CN 108256359A CN 201810059042 A CN201810059042 A CN 201810059042A CN 108256359 A CN108256359 A CN 108256359A
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- hard disk
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- protection device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/81—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
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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
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
Abstract
The present invention relates to seagate fields, provide a kind of storage hard disk power supply protection system, including power module, management module and several controllable over-current protection devices；Power module is used to power for hard-disk interface by controllable over-current protection device；Controllable over-current protection device is used for when hard disk breaks down, and cuts off the access between hard-disk interface and power module, and when hard disk failure is eliminated, the circuit between hard-disk interface and power module is connected in control；Management module; for establishing communication connection with controllable over-current protection device, hard-disk interface; the work state information of controllable over-current protection device, hard-disk interface is obtained respectively; control the circuit on-off between controllable over-current protection device control hard-disk interface and power module; and the operating status of hard disk is shown; overcurrent protection is provided, and can realize the online replacement of faulty hard disk, while entire power supply circuit can be monitored in real time and be managed so as to power for hard disk.
Description
Technical field
The invention belongs to seagate field more particularly to a kind of storage hard disk power supply protection system and guard methods.
Background technology
The arrival in big data epoch allows it was recognized that the important function of data, and storage hard disk in server as protecting
The core component of deposit data, security reliability become most important.
At present, server storage mould hard disk power supply circuit realization method in the block is broadly divided into the following two kinds scheme.Scheme
One is mainly made of power supply and storage hard disk module two parts, as shown in following Fig. 1.Wherein power unit primarily serves voltage tune
Section and the effect of overcurrent protection, power supply externally exports 12V and 5V voltages and powers for hard disk, and passes through and set OCP parameters in hard disk
Occur to cut off the power in time during short circuit, play the role of protecting hard disk.But this realization method there are it is certain the problem of, example
Such as when short trouble occurs for a certain piece of hard disk, the OCP modules of power supply will cut off the power output so that the institute in memory module
There is hard disk that can all be stopped because of power down, this is for the round-the-clock enterprise customer for providing service of some needs can not
Receive.
The technical issues of in order to solve scheme shown in above-mentioned Fig. 1, as shown in Fig. 2, every based on scheme shown in FIG. 1
Increase disposable fuse in one hard disk power supply circuit, when short trouble occurs for some hard disk, one in power supply circuit
Secondary property fuse will fuse, and so as to the supply access of disengagement failure hard disk, and the power supply circuit of other hard disks will not be by shadow
It rings.But the realization method is also problematic, when needing replacing the hard disk that short trouble occurs, it is necessary first to by native service
It migrates to other servers, then cuts off server power supply and replace the fuse to fuse on storage backboard, this realization method
The ease for use of server is reduced, is unfavorable for later maintenance.
Invention content
It can either power the purpose of the present invention is to provide one kind for hard disk and provide overcurrent protection, and can realize that failure is hard
The online replacement of disk, while the storage hard disk power supply protection system that entire power supply circuit can be monitored in real time and be managed.
The invention is realized in this way a kind of storage hard disk power supply protection system, if including power module, management module and
Dry controllable over-current protection device, the controllable over-current protection device are connect respectively with the power module and management module, often
One controllable over-current protection device connects a hard-disk interface；
The power module is powered for passing through the controllable over-current protection device for the hard-disk interface；
The controllable over-current protection device, for when the hard disk breaks down, cut off the hard-disk interface with it is described
Access between power module, when the hard disk failure is eliminated, control connect the hard-disk interface and the power module it
Between circuit；
The management module for establishing communication connection with the controllable over-current protection device, hard-disk interface, obtains respectively
The work state information of the controllable over-current protection device, hard-disk interface is controlled described in the controllable over-current protection device control
Circuit on-off between hard-disk interface and the power module, and the operating status of the hard disk is shown.
As an improvement scheme, the controllable over-current protection device be equipped with pin VIN, pin EN, pin VOUT and
Pin PG；
The pin VIN is used to connect with the pin VOUT of the power module；
The pin EN is the enable signal end of the controllable over-current protection device, when the EN signals of the pin EN are
During high level, the circuit between the hard-disk interface and the power module is in channel status, when the EN of the pin EN believes
Number be low level when, the circuit between the hard-disk interface and the power module is in off state；
Whether the pin PG is for identifying the hard disk in malfunction, when the pin PG signals are high level
When, the hard disk is in normal operating conditions, and when the pin PG signals are low level, the hard disk is in malfunction.
As an improvement scheme, the hard-disk interface be equipped with pin Prsnt and pin VIN, the hard-disk interface
Pin VIN is connect with the pin VOUT of the controllable over-current protection device；
The pin Prsnt of the hard-disk interface is used to identify the presence of hard disk, when the pin Prsnt is in height
During level, the hard disk is in extraction state, and when the pin Prsnt is in low level, the hard disk, which is in, to be inserted into online
State.
As an improvement scheme, the management module include baseboard management controller BMC and it is at least one with it is described
The I/O extended chips of BMC connections；
The I/O extended chips are connect respectively with the controllable over-current protection device and hard-disk interface.
As an improvement scheme, the I/O extended chips be equipped with 16 extension pins；
Wherein, continuous three pins since the pin 0 of the I/O extended chips respectively successively with the controllable overcurrent
Pin EN, the pin PG of protection device are connected with the pin Prsnt of the hard-disk interface.
As an improvement scheme, there is one-to-one close between the I/O extended chips and the hard-disk interface
System.
Another object of the present invention is to provide a kind of storage hard disk power supply based on storage hard disk power supply protection system to protect
Maintaining method, the method includes following step：
After having hard disk to be inserted into hard-disk interface, management module receives the level signal state of the hard-disk interface, and foundation
The level signal state control controllable over-current protection device is opened between the hard-disk interface and the power module
Circuit；
When hard disk breaks down, the controllable over-current protection device disconnect the hard-disk interface and the power module it
Between circuit, and be in hard disk described in the management module feedback indicator level signal of malfunction；
When faulty hard disk is changed to normal hard disk, the management module sends enabled to the controllable over-current protection device
Signal, the control controllable over-current protection device open the circuit between the hard-disk interface and the power module.
As an improvement scheme, described after having hard disk to be inserted into hard-disk interface, management module receives the hard disk and connects
The level signal state of mouth, and open the hard disk according to the level signal state control controllable over-current protection device and connect
Mouthful and the power module between circuit the step of specifically include following step：
After having hard disk to be inserted into hard-disk interface, the hard-disk interface is put the level signal of the pin Prsnt by height
Low, and low level signal passed to I/O extended chips, the I/O extended chips are by the corresponding IO level of the pin Prsnt
Change information is converted to I2C signal transmissions to baseboard management controller BMC, and is shown in the web interface of BMC；
After the baseboard management controller BMC receives the I2C signals, judgement hard disk is in place, the I/O extensions
The EN signals of the pin EN of the controllable over-current protection device are put height by chip, and the controllable over-current protection device is connected described hard
Circuit between disk interface and the power module, while by the PG signals of the pin PG of the controllable over-current protection device by low
It puts height, and the PG signals of the pin PG is put high information and passed to substrate management control by the I/O extended chips by low
Device BMC processed, the baseboard management controller BMC instructions power channel have been opened, and hard disk power supply is normal.
As an improvement scheme, it is described when hard disk breaks down, described in the controllable over-current protection device disconnects
Circuit between hard-disk interface and the power module, and it is in malfunction to hard disk described in the management module feedback indicator
Level signal the step of specifically include following step：
When hard disk breaks down, the controllable over-current protection device disconnect the hard-disk interface and the power module it
Between circuit；
While open-circuit line, the PG signals of pin PG that the controllable overcurrent protects device can be set low, and lead to by height
It crosses I/O extended chips and passes to baseboard management controller BMC；
Baseboard management controller BMC is detected after PG signals set low by height, judges that the hard disk breaks down, the substrate
Management Controller BMC controls the warning information that hard disk failure is shown in web interface.
As an improvement scheme, after storage system power-up initializing, the EN signals of the controllable over-current protection device
Low level is defaulted as, represents that power channel is closed.
In embodiments of the present invention, storage hard disk power supply protection system include power module, management module and several can
Control over-current protection device；Power module is used to power for hard-disk interface by controllable over-current protection device；Controllable overcurrent protector
Part is used for when hard disk breaks down, and cuts off the access between hard-disk interface and power module, when hard disk failure is eliminated, control
Connect the circuit between hard-disk interface and power module；Management module, for being established with controllable over-current protection device, hard-disk interface
Communication connection, obtains the work state information of controllable over-current protection device, hard-disk interface, controls controllable over-current protection device respectively
The circuit on-off between hard-disk interface and power module is controlled, and the operating status of hard disk is shown, so as to be
Hard disk power supply provides overcurrent protection, and can realize the online replacement of faulty hard disk, while entire power supply circuit can be carried out real
When monitor and management.
Description of the drawings
Fig. 1 and Fig. 2 is the structure diagram for the storage hard disk power supply protection system that the prior art provides respectively；
Fig. 3 is the structure diagram of storage hard disk power supply protection system provided by the invention；
Fig. 4 is the wiring schematic diagram of storage hard disk power supply protection system provided by the invention；
Fig. 5 is the realization flow chart of storage hard disk power supply protection method provided by the invention；
Wherein, 1- power modules, 2- management modules, the controllable over-current protection devices of 3-, 4- hard-disk interfaces, 5- substrate management
Controller BMC, 6-I/O extended chip, 7- pull down resistors Rocp.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 3 shows the structure diagram of storage hard disk power supply protection system provided by the invention, for convenience of description, figure
In only give part related to the present invention.
Storage hard disk power supply protection system includes power module 1, management module 2 and several controllable over-current protection devices 3,
The controllable over-current protection device 3 is connect respectively with the power module 1 and management module 2, each described controllable overcurrent is protected
It protects device 3 and connects a hard-disk interface 4；
The power module 1 is powered for passing through the controllable over-current protection device 3 for the hard-disk interface 4；
The controllable over-current protection device 3, for when the hard disk breaks down, cutting off the hard-disk interface 4 and institute
The access between power module 1 is stated, when the hard disk failure is eliminated, the hard-disk interface 4 and the power supply mould are connected in control
Circuit between block 1；
The management module 2, for establishing communication connection with the controllable over-current protection device 3, hard-disk interface 4, respectively
The work state information of the controllable over-current protection device 3, hard-disk interface 4 is obtained, the controllable over-current protection device 3 is controlled to control
The circuit on-off between the hard-disk interface 4 and the power module 1 is made, and the operating status of the hard disk is shown.
With reference to shown in Fig. 4, controllable over-current protection device 3 is equipped with pin VIN, pin EN, pin VOUT and pin PG；
The pin VIN is used to connect with the pin VOUT of the power module 1；
The pin EN is the enable signal end of the controllable over-current protection device 3, when the EN signals of the pin EN are
During high level, the circuit between the hard-disk interface 4 and the power module 1 is in channel status, as the EN of the pin EN
When signal is low level, the circuit between the hard-disk interface 4 and the power module 1 is in off state；
Whether the pin PG is for identifying the hard disk in malfunction, when the pin PG signals are high level
When, the hard disk is in normal operating conditions, and when the pin PG signals are low level, the hard disk is in malfunction.
In this embodiment, hard-disk interface 4 be equipped with pin Prsnt and pin VIN, the pin VIN of the hard-disk interface 4 with
The pin VOUT connections of the controllable over-current protection device 3；
The pin Prsnt of the hard-disk interface 4 is used to identify the presence of hard disk, when the pin Prsnt is in height
During level, the hard disk is in extraction state, and when the pin Prsnt is in low level, the hard disk, which is in, to be inserted into online
State.
In embodiments of the present invention, management module 2 includes baseboard management controller BMC 5 and at least one and BMC
The I/O extended chips 6 of connection；
The I/O extended chips 6 are connect respectively with the controllable over-current protection device 3 and hard-disk interface 4.
Wherein, the I/O extended chips 6 are equipped with 16 extension pins；
Wherein, continuous three pins since the pin 0 of the I/O extended chips 6 respectively successively with the controllable mistake
Pin EN, the pin PG of stream protection device 3 are connected with the pin Prsnt of the hard-disk interface 4.
Certainly, the situation that the above-mentioned I/O extended chip 6 provided corresponds to several hard-disk interfaces 4 (is specifically five hard
Disk interface 4,6 a total of 16 pins of I/O extended chips, a hard-disk interface 4 need to configure three pins, therefore, 16 pipes
Foot can correspond to five hard-disk interfaces 4), naturally it is also possible in the following way：
I.e.：There are one-to-one relationships between I/O extended chips 6 and the hard-disk interface 4, i.e., I/O is only used only and expands
Wherein three pins of chip 6 are opened up, remaining pin is as idle state.
In embodiments of the present invention, the I/O extended chip 6 that Fig. 4 is provided corresponds to the situation of multiple hard-disk interfaces 4,
This is not limiting the present invention.
In embodiments of the present invention, external input voltage is adjusted to 12V and 5V voltages and is supplied for hard disk by above-mentioned power module 1
Electricity, and can be exported by the way that the OCP parameters of power module 1 is set to limit total current；
In this embodiment, the model VT505 of the power module 1 used, overcurrent protection OCP size can pass through adjusting
The value of pull down resistor Rocp 7 shown in Fig. 3 is set；
Therefore, when storage system expanding hard disk, power module 1 only needs to change Rocp resistance, you can to being after extension
System provides overcurrent protection, so as to improve the ease for use of storage system.
In embodiments of the present invention, with reference to shown in Fig. 4, controllable 3 main function of over-current protection device is in the normal work of hard disk
It provides conduction path when making to power for hard disk, when short trouble occurs for hard disk, over-current protection device can quickly cut off hard disk
Access between power supply.
In this embodiment, the protection device that NCP45520 chips is selected to power as single hard disk, the chip not only have
There is overcurrent protection function, and additionally provide two control signals of EN and PG, improve the manageability of hard disk power supply circuit；
Wherein, pin VIN is power input, receives the output level after the adjusting of power module 1；Pin VOUT is electricity
Source output is powered hard disk；The switch of power channel is controlled by enable signal pin EN between pin VIN and pin VOUT
System, when EN is high level, power channel is opened, and when EN is low level, power channel is closed；Pin PG is used to indicate power supply
Whether channel is opened, and when power channel is opened, PG is high level, and when power channel is closed, PG signals are low level.
In embodiments of the present invention, the major function of management module 2 is that hard disk power supply circuit is monitored in real time and managed
Reason；
Management module 2 is mainly made of BMC chip and multiple I/O extended chips 6, wherein the model of I/O extended chips 6
PCA9555 chips；Baseboard management controller BMC 5 is the managing chip of storage system, can externally provide multiple I2C management and connect
Mouthful, and in the achievable web-based management function in inside, PCA9555 chips are I2C interface I/O expansion chip, it is expansible go out 16 IO
Interface；
In the present invention, the effect of PCA9555 chips is that the control signal EN and PG and HDD of overcurrent protection chip is hard
The I/O signals such as the signal Prsnt in place of disk are converted to I2C signal transmissions and are managed to baseboard management controller BMC 5；
A piece of PCA9555 expands 16 I/O interfaces altogether, and each hard disk power supply protection circuit needs to occupy 3 IO, therefore
Each PCA9555 chips can mount up to 5 pieces of hard disks, when, there are during more hard disk, need to only being managed in system in the I2C of BMC total
Increase the quantity of PCA9555 chips on line.
In embodiments of the present invention, increase controllable over-current protection device 3 and management module among power supply and each hard disk
2.When hard disk works normally, supply current is less than the threshold current of over-current protection device, and over-current protection device is on shape
State is powered for hard disk；When short trouble occurs for hard disk, over-current protection device shutdown, so as to the confession between hard disk of cutting off the power
Electric pathway avoids the situation that power supply OCP is caused to protect due to short circuit current is excessive and then all hard disks is caused to be stopped.Simultaneously
Hard disk short trouble can be sent to management module 2 by over-current protection device, and management module 2 shows warning information in web interface
Show so that operation maintenance personnel to be prompted to carry out faulty hard disk replacement, it is to be replaced for after normal hard disk, it only need to be in the web interface of management module 2
The over-current protection device of power supply circuit is enabled again, you can restore the normal power supply to hard disk, whole process need not be
System shutdown, you can realize online replace, and replacement process is easy to operate, improves the ease for use of system.
Fig. 5 shows the realization flow chart of storage hard disk power supply protection method provided by the invention, specifically includes following
Step：
In step S101, after having hard disk to be inserted into hard-disk interface 4, management module 2 receives the level of the hard-disk interface 4
Signal condition, and according to the level signal state control the controllable over-current protection device 3 open the hard-disk interface 4 with
Circuit between the power module 1.
In step s 102, when hard disk breaks down, the controllable over-current protection device 3 disconnects the hard-disk interface 4
With the circuit between the power module 1, and it is in hard disk described in 2 feedback indicator of management module the level of malfunction
Signal.
In step s 103, when faulty hard disk is changed to normal hard disk, the management module 2 is protected to the controllable overcurrent
It protects device 3 and sends enable signal, the controllable over-current protection device 3 is controlled to open the hard-disk interface 4 and the power module 1
Between circuit.
Wherein, above-mentioned steps S101 specifically includes following step：
(1) after thering is hard disk to be inserted into hard-disk interface 4, the hard-disk interface 4 by the level signal of the pin Prsnt by
Height is set low, and low level signal is passed to I/O extended chips 6, and the I/O extended chips 6 are corresponding by the pin Prsnt
IO level change information is converted to I2C signal transmissions to baseboard management controller BMC 5, and is shown in the web interface of BMC；
(2) after the baseboard management controller BMC 5 receives the I2C signals, judgement hard disk is in place, the I/O
The EN signals of the pin EN of the controllable over-current protection device 3 are put height by extended chip 6, and the controllable over-current protection device 3 connects
Logical circuit between the hard-disk interface 4 and the power module 1, while by the pin PG of the controllable over-current protection device 3
PG signals put height, and the PG signals of the pin PG are put high information and passed by the I/O extended chips 6 by low by low
Baseboard management controller BMC 5 is passed, the baseboard management controller BMC 5 indicates that power channel has been opened, and hard disk is powered just
Often.
In this embodiment, above-mentioned steps S102 specifically includes following step：
When hard disk breaks down, the controllable over-current protection device 3 disconnects the hard-disk interface 4 and the power module
Circuit between 1；
While open-circuit line, the PG signals of pin PG that the controllable overcurrent protects device can be set low, and lead to by height
It crosses I/O extended chips 6 and passes to baseboard management controller BMC 5；
Baseboard management controller BMC 5 is detected after PG signals set low by height, judges that the hard disk breaks down, the base
Board management controller BMC 5 controls the warning information that hard disk failure is shown in web interface.
Wherein, after storage system power-up initializing, the EN signals of the controllable over-current protection device 3 are defaulted as low level,
Represent that power channel is closed.
In embodiments of the present invention, storage hard disk power supply protection system include power module 1, management module 2 and several
Controllable over-current protection device 3；Power module 1 is used to power for hard-disk interface 4 by controllable over-current protection device 3；Controllable overcurrent
Device 3 is protected to be used for when hard disk breaks down, the access between hard-disk interface 4 and power module 1 is cut off, when hard disk failure disappears
Except when, the circuit between hard-disk interface 4 and power module 1 is connected in control；Management module 2, for controllable over-current protection device
3rd, hard-disk interface 4 establishes communication connection, obtains the work state information of controllable over-current protection device 3, hard-disk interface 4, control respectively
The circuit on-off between the controllable control hard-disk interface 4 of over-current protection device 3 and power module 1 is made, and to the operating status of hard disk
It is shown, overcurrent protection is provided, and can realize the online replacement of faulty hard disk, while can so as to power for hard disk
Entire power supply circuit is monitored in real time and managed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of storage hard disk power supply protection system, which is characterized in that including power module, management module and several controllable mistakes
Stream protection device, the controllable over-current protection device connect respectively with the power module and management module, can described in each
It controls over-current protection device and connects a hard-disk interface；
The power module is powered for passing through the controllable over-current protection device for the hard-disk interface；
The controllable over-current protection device, for when the hard disk breaks down, cutting off the hard-disk interface and the power supply
Access between module, when the hard disk failure is eliminated, control is connected between the hard-disk interface and the power module
Circuit；
The management module, for establishing communication connection with the controllable over-current protection device, hard-disk interface, respectively described in acquisition
The work state information of controllable over-current protection device, hard-disk interface, the control controllable over-current protection device control the hard disk
Circuit on-off between interface and the power module, and the operating status of the hard disk is shown.
2. storage hard disk power supply protection system according to claim 1, which is characterized in that the controllable over-current protection device
Equipped with pin VIN, pin EN, pin VOUT and pin PG；
The pin VIN is used to connect with the pin VOUT of the power module；
The pin EN is the enable signal end of the controllable over-current protection device, when the EN signals of the pin EN are high level
When, the circuit between the hard-disk interface and the power module is in channel status, when the EN signals of the pin EN are low
During level, the circuit between the hard-disk interface and the power module is in off state；
The pin PG is for identifying whether the hard disk is in malfunction, when the pin PG signals are high level, institute
It states hard disk and is in normal operating conditions, when the pin PG signals are low level, the hard disk is in malfunction.
3. storage hard disk power supply protection system according to claim 2, which is characterized in that the hard-disk interface is equipped with pin
Prsnt and pin VIN, the pin VIN of the hard-disk interface are connect with the pin VOUT of the controllable over-current protection device；
The pin Prsnt of the hard-disk interface is used to identify the presence of hard disk, when the pin Prsnt is in high level
When, the hard disk is in extraction state, and when the pin Prsnt is in low level, the hard disk, which is in, is inserted into presence.
4. storage hard disk power supply protection system according to claim 3, which is characterized in that the management module includes substrate
Management Controller BMC and at least one I/O extended chips being connect with the BMC；
The I/O extended chips are connect respectively with the controllable over-current protection device and hard-disk interface.
5. storage hard disk power supply protection system according to claim 4, which is characterized in that the I/O extended chips are equipped with
16 extension pins；
Wherein, continuous three pins since the pin 0 of the I/O extended chips respectively successively with the controllable overcurrent protection
Pin EN, the pin PG of device are connected with the pin Prsnt of the hard-disk interface.
6. storage hard disk power supply protection system according to claim 3, which is characterized in that the I/O extended chips and institute
State between hard-disk interface that there are one-to-one relationships.
7. a kind of storage hard disk power supply protection method based on storage hard disk power supply protection system described in claim 1, special
Sign is that the method includes following step：
After having hard disk to be inserted into hard-disk interface, management module receives the level signal state of the hard-disk interface, and according to described
The level signal state control controllable over-current protection device opens the circuit between the hard-disk interface and the power module；
When hard disk breaks down, the controllable over-current protection device is disconnected between the hard-disk interface and the power module
Circuit, and it is in hard disk described in the management module feedback indicator level signal of malfunction；
When faulty hard disk is changed to normal hard disk, the management module sends enabled letter to the controllable over-current protection device
Number, the control controllable over-current protection device opens the circuit between the hard-disk interface and the power module.
8. storage hard disk power supply protection method according to claim 7, which is characterized in that described to there is hard disk to be inserted into hard disk
After interface, management module receives the level signal state of the hard-disk interface, and according to described in level signal state control
The step of controllable over-current protection device opens the circuit between the hard-disk interface and the power module specifically includes following steps
Suddenly：
After having hard disk to be inserted into hard-disk interface, the hard-disk interface is set low the level signal of the pin Prsnt by height, and
Low level signal is passed into I/O extended chips, the I/O extended chips are by the corresponding IO level changes of the pin Prsnt
Information is converted to I2C signal transmissions to baseboard management controller BMC, and is shown in the web interface of BMC；
After the baseboard management controller BMC receives the I2C signals, judgement hard disk is in place, and the I/O extended chips will
The EN signals of the pin EN of the controllable over-current protection device put height, and the controllable over-current protection device connects the hard-disk interface
With the circuit between the power module, while the PG signals of the pin PG of the controllable over-current protection device are put into height by low,
And the PG signals of the pin PG are put high information and passed to baseboard management controller by the I/O extended chips by low
BMC, the baseboard management controller BMC instructions power channel have been opened, and hard disk power supply is normal.
9. storage hard disk power supply protection method according to claim 8, which is characterized in that described when hard disk breaks down
When, the controllable over-current protection device disconnects the circuit between the hard-disk interface and the power module, and to the management
The step of module feedback mark hard disk is in the level signal of malfunction specifically includes following step：
When hard disk breaks down, the controllable over-current protection device is disconnected between the hard-disk interface and the power module
Circuit；
While open-circuit line, the PG signals of pin PG that the controllable overcurrent protects device can be set low, and pass through I/O by height
Extended chip passes to baseboard management controller BMC；
Baseboard management controller BMC is detected after PG signals set low by height, judges that the hard disk breaks down, the substrate management
Controller BMC controls the warning information that hard disk failure is shown in web interface.
10. storage hard disk power supply protection method according to claim 9, which is characterized in that storage system power-up initializing
Afterwards, the EN signals of the controllable over-current protection device are defaulted as low level, represent that power channel is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059042.0A CN108256359B (en) | 2018-01-22 | 2018-01-22 | Power supply protection system and protection method for storage hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059042.0A CN108256359B (en) | 2018-01-22 | 2018-01-22 | Power supply protection system and protection method for storage hard disk |
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| WO2022095644A1 (en) * | 2020-11-09 | 2022-05-12 | 苏州浪潮智能科技有限公司 | Method and apparatus for protecting server power supply |
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| CN108256359B (en) | 2021-10-26 |
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