CN109189194A - A kind of method and system controlling hard disk power-on and power-off - Google Patents

A kind of method and system controlling hard disk power-on and power-off Download PDF

Info

Publication number
CN109189194A
CN109189194A CN201810933927.9A CN201810933927A CN109189194A CN 109189194 A CN109189194 A CN 109189194A CN 201810933927 A CN201810933927 A CN 201810933927A CN 109189194 A CN109189194 A CN 109189194A
Authority
CN
China
Prior art keywords
power
hard disk
power supply
signal
hard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810933927.9A
Other languages
Chinese (zh)
Inventor
程鹏
董超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Yunhai Information Technology Co Ltd
Original Assignee
Zhengzhou Yunhai Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Yunhai Information Technology Co Ltd filed Critical Zhengzhou Yunhai Information Technology Co Ltd
Priority to CN201810933927.9A priority Critical patent/CN109189194A/en
Publication of CN109189194A publication Critical patent/CN109189194A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)

Abstract

This application discloses a kind of method and system for controlling hard disk power-on and power-off to be converted to power supply control enable signal for hard disk signal in place this method comprises: obtaining hard disk signal in place, according to power supply control enable signal, carries out electric control up and down to hard disk.The system includes hard-disk interface module, signal conversion module, power control module and power supply conversion module, hard-disk interface module is connect with hard disk, signal conversion module is set between hard-disk interface module and power control module, power control module is connect for controlling matched hard disk power-on and power-off, power supply conversion module with power control module.By the method and system in the application, single hard disk can be powered, advantageously reduce for risk, the stability of hard disk power supply is improved, to improve the reliability of entire storage server.

Description

A kind of method and system controlling hard disk power-on and power-off
Technical field
This application involves server design technical fields, more particularly to a kind of method for controlling hard disk power-on and power-off and are System.
Background technique
In server design technical field, there is many business storage service based on the hard disk and carry out, and stores class business It is to be designed based on the most common hard disk as storage medium again.In the design of storage class business and storage hard disk, all It is be unable to do without power-supply service, therefore, a set of hard disk power supply system of good performance is designed, is very important work in server design Make.
In current server design, in particular for SAS or SATA hard disc as in the server design of storage medium, Generally use default power supply mode, it may be assumed that hard disk is directly powered by power supply board, power supply board without control directly by power supply export to Hard disk.
However, in current hard disk power-supply service method, since using power supply mode is defaulted, power supply board is not carried out power supply Control is powered directly to hard disk, when multiple hard disks are powered together in polydisc system, it is easy to lead to electricity shortage, to make hard Disk electrical stability is poor.And the mode of default power supply, it is easy the overcurrent protection of triggering power supply board, that is, is easy to cause power supply The OCP (Over Current Protect, overcurrent protection) of plate, is caused for risk, to reduce entire storage server Reliability.
Summary of the invention
This application provides a kind of method and system for controlling hard disk power-on and power-off, steady to solve hard disk power supply in the prior art The qualitative and poor problem of reliability.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution:
A method of control hard disk power-on and power-off, which comprises
Obtain hard disk signal in place;
Hard disk signal in place is converted into power supply control enable signal;
According to the power supply control enable signal, hard disk power-on and power-off are controlled.
Optionally, hard disk signal in place includes: HDD_PRESENT signal and IF_DET signal;
The HDD_PRESENT signal, it is whether in place for detecting SAS hard disk or SATA hard disc;
The IF_DET signal, it is whether in place for detecting NVMe hard disk.
Optionally, the method is for controlling single hard disk power supply.
A kind of system controlling hard disk power-on and power-off, the system comprises: hard-disk interface module, signal conversion module, power supply Control module and power supply conversion module, wherein
The hard-disk interface module is connect with hard disk, for obtaining hard disk signal in place and being sent to signal conversion module;
The signal conversion module is set between hard-disk interface module and power control module, for believing hard disk in place Number power supply control enable signal is converted to, and the power supply control enable signal is transmitted to power control module;
The power control module matches one by one with hard disk, for receiving the power supply control enable signal, and according to institute Power supply control enable signal is stated, matched hard disk power-on and power-off are controlled;
The power supply conversion module is connect with power control module, for obtaining power supply from power panel, and by power panel On power supply be converted to the available power supply of hard disk.
Optionally, when input is high level, the signal conversion module is without output;It is described when input is low level Signal conversion module exports high level.
Optionally, when input is high level, the power control module output hard disk power supply;When input is low level When, the power control module does not export hard disk power supply.
Optionally, the power control module includes: P12V-EFUSE chip and P5V-EFUSE chip.
Optionally, the power supply conversion module includes: P12V-VR and P5V-VR;
The P12V-VR for obtaining the power supply of P12V from power panel, and the P12V power supply on power panel is converted to The available power supply of hard disk is exported to P12V-EFUSE chip;
The P5V-VR for obtaining the power supply of P5V from power panel, and the P5V power supply on power panel is converted to firmly The available power supply of disk is exported to P5V-EFUSE chip.
The technical solution that embodiments herein provides can include the following benefits:
The application provides a kind of method for controlling hard disk power-on and power-off, and this method obtains hard disk signal in place first, then will This hard disk signal in place is converted to power supply control enable signal, and power supply control enable signal is sent to power supply control chip, Power supply control chip carries out electric control up and down according to acquired power supply control enable signal, to hard disk.Due to the application according to The practical in place situation of hard disk carries out electric control up and down to hard disk, the pact to the power supply of hard disk by power supply control enable signal Beam, rather than directly by power supply to hard disk, and the application can be independently-powered for the progress of single hard disk, therefore, this The method that hard disk power-on and power-off are controlled in application can substantially reduce the stability for being conducive to improve hard disk power supply for risk, from And improve the reliability of entire storage server.In addition, being believed in place after obtaining hard disk signal in place due to the application hard disk It number is converted, can effectively avoid false triggering, additionally it is possible to played hot plug protective effect, be conducive to further increase hard disk confession The stability and reliability of electricity.
The application also provides a kind of system for controlling hard disk power-on and power-off, which mainly includes hard-disk interface module, signal Conversion module, power control module and power supply four part of conversion module, wherein hard-disk interface module is connect with hard disk, for obtaining Hard disk signal in place is simultaneously transmitted to signal conversion module;Signal conversion module is used to hard disk signal in place being converted to power supply control Enable signal, and export to power control module;Power control module is used to receive power supply control enable signal, and according to power supply It controls enable signal and controls matched hard disk power-on and power-off;Power supply conversion module, for obtaining power supply from power panel, and Power supply on power panel is converted into the available power supply of hard disk.The setting of power control module in the present embodiment, can be according to hard The currently practical information in place of disk carries out electric control up and down to hard disk, so that hard disk is avoided directly to take electricity from power supply conversion module, Especially in the case where polydisc is powered, the stability and reliability of hard disk power supply can be effectively improved, is conducive to improve and entirely deposit Store up the reliability of server.Due to avoiding power supply conversion module from directly powering to hard disk, additionally it is possible to avoid the overcurrent of power panel Protection is conducive to the reliability for improving hard disk power supply unit.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application Example, and together with specification it is used to explain the principle of the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow diagram for the method for controlling hard disk power-on and power-off provided by the embodiment of the present application;
Fig. 2 is a kind of structural schematic diagram for the system for controlling hard disk power-on and power-off provided by the embodiment of the present application;
Fig. 3 is the circuit diagram that the system of hard disk power-on and power-off is controlled in the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common The application protection all should belong in technical staff's every other embodiment obtained without making creative work Range.
The application in order to better understand explains in detail presently filed embodiment with reference to the accompanying drawing.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of process signal for the method for controlling hard disk power-on and power-off provided by the embodiment of the present application Figure.As shown in Figure 1, the method that hard disk power-on and power-off are controlled in the present embodiment mainly comprises the following processes:
S1: hard disk signal in place is obtained.
The signal in place of hard disk can be obtained by the hard-disk interface connecting with hard disk, whether realize Auto-Sensing hard disk In place.
Common hard disk includes SAS hard disk, SATA hard disc and NVMe hard disk in server, correspondingly, hard in the present embodiment Disk signal in place includes: HDD_PRESENT signal and IF_DET signal.Wherein, HDD_PRESENT signal is hard for detecting SAS Whether disk or SATA hard disc are in place;Whether IF_DET signal is in place for detecting NVMe hard disk.
S2: hard disk signal in place is converted into power supply control enable signal.
Hard disk signal in place is converted into power supply control enable signal in this implementation, is not only able to enabled according to power supply control Signal controls hard disk power-on and power-off, additionally it is possible to hard disk play hot plug protective effect.Specifically, the hard disk packet in the present embodiment Include the hard disk for supporting hot plug.When using hot-plug hard disk, since hard disk supports hot plug, in the moment of hard disk insertion board It might have biggish pulse, after getting hard disk signal in place, hard disk signal in place converted, play buffering and make With hot plug protective effect can be played to hard disk;And conversion is carried out to hard disk signal in place and can be avoided false triggering, favorably In the stability for improving hard disk power supply.
S3: according to power supply control enable signal, hard disk power-on and power-off are controlled.
After hard disk signal in place is converted to power supply control enable signal, power supply control enable signal is sent to for automatically controlled Coremaking piece, power supply control chip can control hard disk power-on and power-off according to power supplying control signal.
Specifically, the in place state current according to hard disk, if not in place, power supply control enable signal is high electricity Flat, power supply control chip is not powered on without output;If hard disk is currently in place, power supply control enable signal is low level, Power supply control chip has output, that is, powers on.In general, indicating whether hard disk is in place using the low and high level of hard disk signal in place.
The method of the present embodiment is for controlling single hard disk power supply.It is, by hard-disk interface get with it is current hard The signal in place for the single hard disk that disk interface is connected is supplied according to the signal acquisition in place of single hard disk to power supplying control signal Electric control chip controls the power-on and power-off of the hard disk according to the power supplying control signal of single hard disk.In polydisc system, it can distinguish The signal in place for obtaining each hard disk carries out electric control up and down according to the situation in place of each hard disk respectively.
In conclusion the present embodiment turns by the single hard disk of Auto-Sensing information in place, and by single hard disk information in place It is changed to the power supplying control signal of single hard disk, to control hard disk power-on and power-off, rather than is powered by power panel directly to hard disk, Therefore, the stability and reliability of hard disk power supply can be greatly improved.It, can be to hard disk not in place especially in polydisc system And it is electric at present, it can be avoided the problem of electricity shortage and electrical stability difference caused by multiple hard disks are powered together, be conducive to mention The reliability of high entire storage server.
Embodiment two
On the basis of embodiment shown in Fig. 1 referring to fig. 2, Fig. 2 is that a kind of control provided by the embodiment of the present application is hard The structural schematic diagram of the system of disk power-on and power-off.As shown in Figure 2, the system that hard disk power-on and power-off are controlled in the present embodiment specifically includes that Hard-disk interface module, signal conversion module, power control module and power supply four part of conversion module.
Wherein, hard-disk interface module is connect with hard disk, for obtaining hard disk signal in place and being sent to signal conversion module. Hard-disk interface is the hard-disk interface of support standard SAS/SATA agreement or NVMe agreement in the present embodiment, hard-disk interface specifically with The golden finger of hard disk connects.
Signal conversion module is set between hard-disk interface module and power control module, for turning hard disk signal in place It is changed to power supply control enable signal, and power supply control enable signal is transmitted to power control module.When hard in the present embodiment When disk is hot-plug hard disk, the moment of hard disk insertion board might have biggish pulse current, pass through setting signal modulus of conversion Block makes the available buffering of pulse current, plays hot plug protective effect, is conducive to the reliability of raising system, and signal Conversion module can also avoid false triggering, be conducive to the reliability of raising system.
The input-output characteristic of signal conversion module in the present embodiment are as follows: when inputting as high level, no output;Input is low When level, high level is exported.Namely: when input is high level, signal conversion module is without output;When input is low level When, signal conversion module exports high level.
Power control module matches one by one with hard disk, makes for receiving power supply control enable signal, and according to power supply control Energy signal, the hard disk power-on and power-off that control matches with power control module.
Power control module high level is effective, i.e., when the input of power control module is high level, output hard disk power supply;It is defeated When entering for low level, no output.It is, system powers to hard disk when the input of power control module is high level;Work as confession When the input of electric control module is low level, system does not power to hard disk.
Any power control module matches with a hard disk in the present embodiment.Power control module in the present embodiment includes P12V-EFUSE chip and P5V-EFUSE chip.Hard-disk interface module sends hard disk signal in place to signal conversion module, signal Hard disk signal in place is converted to power supply control enable signal by conversion module, and the power supply control enable signal is respectively sent to P12V-EFUSE chip or P5V-EFUSE chip, P12V-EFUSE chip or P5V-EFUSE chip are according to the enabled letter of power supply control Number control power supply conversion module is to hard disk power-on and power-off.Power control module supports hot plug in the present embodiment, and has a control Signal.
Conversion module of powering is used for according to power supply control enable signal from power supply on board supply, and acquired power supply is turned It is changed to the available power supply of hard disk.Power supply conversion module for server hard disc generally includes: P12V-VR and P5V-VR.P12V- VR or P5V-VR can be CRPS (Common Redundant Power Supplies, general redundant power) or busbar The power supply exported in (bus) is converted, and the voltage and current that can be used for hard disk is converted to.
The circuit diagram of the system of hard disk power-on and power-off is controlled in the present embodiment referring to Fig. 3.In Fig. 3, P12V-VR and P5V- VR is power supply conversion module, and P12V-EFUSE and P5V-EFUSE are power control module, and Buffer is signal conversion module, HDD_PRESENT is the hard disk signal in place from hard-disk interface module, and EFUSE_ENABLE is signal conversion module output Level signal, the input signal as power control module.P12V_HDD and P5V_HDD indicates power control module P12V- EFUSE and P5V-EFUSE controls power supply conversion module P12V-VR and P5V-VR respectively and is powered to hard-disk interface, including to Hard-disk interface provides voltage and current.P3V3_AUX is a signal pull-up power supply, and for providing a level level, Rpu is upper Pull-up resistor, R1 are pull down resistor.
From the figure 3, it may be seen that when hard disk is not inserted on hard-disk interface, HDD_PRESENT signal is high level, because having P3V3_AUX is by being pulled in high level level on resistance Rpu, and Buffer low level is effective, so high level at this time will not touch Buffer is sent out, Buffer exports low level signal, therefore the EFUSE_ENABLE signal of P12V-EFUSE and P5V-EFUSE at this time In low level level, the EFUSE_ENABLE signal of P12V-EFUSE and P5V-EFUSE is set as by pull down resistor R1 Low level, and P12V-EFUSE and P5V-EFUSE high level is effective, therefore, power supply conversion module is not powered to hard disk.It needs to infuse It anticipates, R1 resistance value is larger in the present embodiment, and usually 10K ohm or more.
After hard disk is inserted on hard-disk interface, by taking SAS/SATA hard disk as an example, due on SAS/SATA hard disk ontology HDD_PRESENT signal be that ground connection can be become HDD_PRESENT signal from high level after hard disk is inserted into hard-disk interface Low level, low level HDD_PRESENT signal can trigger Buffer output high level signal, i.e., EFUSE_ENABLE drawing be arrived High level level, therefore the power supply control enable signal of P12V-EFUSE and P5V-EFUSE is with regard to effective, P12V_HDD and P5V_ HDD will be output on hard disk, i.e., power supply conversion module is powered to hard disk.
By the working principle of system above it is found that when hard disk is not inserted into hard-disk interface, hard-disk interface is in without electric shape State can just power to corresponding hard disk only when hard disk is linked into hard-disk interface, therefore can reduce the wind of hard disk power supply Danger is conducive to the reliability for improving hard disk backboard, and increases the stability of system.
The part that the embodiment is not described in detail can refer to embodiment one shown in FIG. 1, can be between two embodiments Mutual reference, details are not described herein.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (8)

1. a kind of method for controlling hard disk power-on and power-off, which is characterized in that the described method includes:
Obtain hard disk signal in place;
Hard disk signal in place is converted into power supply control enable signal;
According to the power supply control enable signal, hard disk power-on and power-off are controlled.
2. a kind of method for controlling hard disk power-on and power-off according to claim 1, which is characterized in that the hard disk signal in place It include: HDD_PRESENT signal and IF_DET signal;
The HDD_PRESENT signal, it is whether in place for detecting SAS hard disk or SATA hard disc;
The IF_DET signal, it is whether in place for detecting NVMe hard disk.
3. according to claim 1 or a kind of method of control hard disk power-on and power-off described in 2, which is characterized in that the method is used It powers in controlling single hard disk.
4. a kind of system for controlling hard disk power-on and power-off, which is characterized in that the system comprises: hard-disk interface module, signal conversion Module, power control module and power supply conversion module, wherein
The hard-disk interface module is connect with hard disk, for obtaining hard disk signal in place and being sent to signal conversion module;
The signal conversion module is set between hard-disk interface module and power control module, for turning hard disk signal in place It is changed to power supply control enable signal, and the power supply control enable signal is transmitted to power control module;
The power control module matches one by one with hard disk, for receiving the power supply control enable signal, and according to the confession Electric control enable signal controls matched hard disk power-on and power-off;
The power supply conversion module is connect with power control module, for obtaining power supply from power panel, and will be on power panel Power supply is converted to the available power supply of hard disk.
5. a kind of system for controlling hard disk power-on and power-off according to claim 4, which is characterized in that when input is high level When, the signal conversion module is without output;When input is low level, the signal conversion module exports high level.
6. a kind of system for controlling hard disk power-on and power-off according to claim 4, which is characterized in that when input is high level When, the power control module output hard disk power supply;When input is low level, the power control module does not export hard disk confession Electricity.
7. a kind of system for controlling hard disk power-on and power-off according to claim 4, which is characterized in that the power control module It include: P12V-EFUSE chip and P5V-EFUSE chip.
8. a kind of system for controlling hard disk power-on and power-off according to claim 7, which is characterized in that the power supply conversion module It include: P12V-VR and P5V-VR;
P12V power supply on power panel for obtaining the power supply of P12V from power panel, and is converted to hard disk by the P12V-VR Available power supply is exported to P12V-EFUSE chip;
The P5V-VR, for obtaining the power supply of P5V from power panel, and the P5V power supply on power panel is converted to hard disk can Power supply is exported to P5V-EFUSE chip.
CN201810933927.9A 2018-08-15 2018-08-15 A kind of method and system controlling hard disk power-on and power-off Pending CN109189194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810933927.9A CN109189194A (en) 2018-08-15 2018-08-15 A kind of method and system controlling hard disk power-on and power-off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810933927.9A CN109189194A (en) 2018-08-15 2018-08-15 A kind of method and system controlling hard disk power-on and power-off

Publications (1)

Publication Number Publication Date
CN109189194A true CN109189194A (en) 2019-01-11

Family

ID=64918308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810933927.9A Pending CN109189194A (en) 2018-08-15 2018-08-15 A kind of method and system controlling hard disk power-on and power-off

Country Status (1)

Country Link
CN (1) CN109189194A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109976961A (en) * 2019-04-11 2019-07-05 西安易朴通讯技术有限公司 It is stuck in level detecting apparatus
CN110018729A (en) * 2019-04-16 2019-07-16 苏州浪潮智能科技有限公司 A kind of system of off-peak electrification of hard disk that realizing hard disk backboard
CN110377142A (en) * 2019-06-27 2019-10-25 苏州浪潮智能科技有限公司 A kind of system and method for supporting server hard disc independence power-on and power-off
CN111190779A (en) * 2019-12-27 2020-05-22 苏州浪潮智能科技有限公司 Hard disk detection structure, hard disk detection method and hard disk
CN114578935A (en) * 2022-01-14 2022-06-03 苏州浪潮智能科技有限公司 Power supply control system and method for server board card

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1855827A (en) * 2005-04-19 2006-11-01 华为技术有限公司 Remote electric power supplying system and its control
CN102970148A (en) * 2012-12-05 2013-03-13 福建星网锐捷网络有限公司 Power supply method and device based on POE (Power Over Ethernet) switch, and POE switch
CN206684667U (en) * 2017-04-14 2017-11-28 郑州云海信息技术有限公司 A kind of more hard disk electric supply installations for preventing piezoelectric voltage to fluctuate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1855827A (en) * 2005-04-19 2006-11-01 华为技术有限公司 Remote electric power supplying system and its control
CN102970148A (en) * 2012-12-05 2013-03-13 福建星网锐捷网络有限公司 Power supply method and device based on POE (Power Over Ethernet) switch, and POE switch
CN206684667U (en) * 2017-04-14 2017-11-28 郑州云海信息技术有限公司 A kind of more hard disk electric supply installations for preventing piezoelectric voltage to fluctuate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109976961A (en) * 2019-04-11 2019-07-05 西安易朴通讯技术有限公司 It is stuck in level detecting apparatus
CN110018729A (en) * 2019-04-16 2019-07-16 苏州浪潮智能科技有限公司 A kind of system of off-peak electrification of hard disk that realizing hard disk backboard
CN110377142A (en) * 2019-06-27 2019-10-25 苏州浪潮智能科技有限公司 A kind of system and method for supporting server hard disc independence power-on and power-off
CN111190779A (en) * 2019-12-27 2020-05-22 苏州浪潮智能科技有限公司 Hard disk detection structure, hard disk detection method and hard disk
CN114578935A (en) * 2022-01-14 2022-06-03 苏州浪潮智能科技有限公司 Power supply control system and method for server board card
CN114578935B (en) * 2022-01-14 2023-07-18 苏州浪潮智能科技有限公司 Power supply control system and method for server board card

Similar Documents

Publication Publication Date Title
CN109189194A (en) A kind of method and system controlling hard disk power-on and power-off
CN106774801A (en) A kind of hard disk is avoided the peak hour activation system
WO2014197626A1 (en) Battery assisted power
CN103576544B (en) A kind of terminal with OTG function
CN102457384A (en) Power device
CN201707642U (en) Device for reducing powering up instant power consumption of disk array
CN104267782A (en) Low-power-consumption 18-tube yunfile node device
US20150026503A1 (en) Appliances powered over sas
TWI754183B (en) Hdd backplane management device
US20110072186A1 (en) Portable computer capable of converting internal storage device into external storage device
CN107102917A (en) A kind of reliability framework for improving multi-server system
CN101510116A (en) Energy-conserving method and system of terminal equipment with standby function
CN112835426A (en) Desktop computer based on Feitengrui D2000 processor
CN210246387U (en) Power supply switching circuit and electronic equipment
US7461181B2 (en) Programming of configuration serial EEPROM via an external connector
CN107239129A (en) The power control method and device of a kind of electronic equipment
CN104753518A (en) Control circuit
CN207021988U (en) A kind of control circuit of express delivery cabinet
CN111352495B (en) Hard disk off-peak power-on control system
CN211149439U (en) OCP keysets and support NVME's OCP switching system
CN209462558U (en) A kind of power-off restoration device and earphone, speaker
CN206757587U (en) A kind of storage architecture based on SAS cascade structures
TWI811058B (en) Electronic device
CN217718574U (en) Expansion board
CN110989812B (en) Encryption device, system and encryption device control method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190111