CN107885631A - A kind of end-to-end data protection system of massive store based on power down protection - Google Patents
A kind of end-to-end data protection system of massive store based on power down protection Download PDFInfo
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- CN107885631A CN107885631A CN201711447075.4A CN201711447075A CN107885631A CN 107885631 A CN107885631 A CN 107885631A CN 201711447075 A CN201711447075 A CN 201711447075A CN 107885631 A CN107885631 A CN 107885631A
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- massive store
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- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 32
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 5
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 239000005518 polymer electrolyte Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000013507 mapping Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/16—Protection against loss of memory contents
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2284—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by power-on test, e.g. power-on self test [POST]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Present invention relates particularly to a kind of end-to-end data protection system of the massive store based on power down protection.A kind of end-to-end data protection system of massive store based on power down protection; including power module; power module includes system power supply power supply, booster circuit, one-level DC/DC power modules and the two level DC/DC power modules being sequentially connected; system power supply power supply is boosted to+28V by power module by+12V, and one-level DC/DC power modules are by+28V voltage outputs+3.3V；Also include master control FPGA and FLASH array, quick power-fail detection circuit is additionally provided between described system power supply power supply and master control FPGA, quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, and two level DC/DC power modules are connected respectively with master control FPGA and FLASH array；Tantalum capacitor array is provided between booster circuit and one-level DC/DC power modules.The present invention makes master control FPGA have more time-triggered protocol power-fail interrupt programs using quick power-fail detection circuit, improves the security of end-to-end data protection.
Description
Technical field
The present invention relates to big data technical field of memory, and in particular to a kind of massive store end pair based on power down protection
End data protects system.
Background technology
With the development of science and technology, society enters the big data analysis epoch, higher demand has been stored with to Large Copacity,
Capacity requirement is increasing, and faster, interface requirement is diversified, while the security of data, confidentiality and importance for rate request
Increasingly cause the concern of people.
In the epoch of this " gold is valuable, and data are priceless ", data how are effectively protected not lose most important, particularly
When the unexpected power down of system or abnormal shutdown, the mapping table of rapid saving storage dish and data cached, massive store key
Technological difficulties are first, capacity is big, interface versatile（Such as use Ethernet, optical fiber and USB3.0 interfaces）And cause at high speed
The power consumption of power supply requirement is bigger, second, power-down conditions are quickly detected during power down and notify master control to perform power down protection in time,
Third, storage device maximizes memory capacity in limited dimensional space, this requires to place when designing power down more
Storage capacitor.According to special massive store end-to-end data guard method of the proposition based on power down protection of the above situation.
Present many manufacturers are in order to prevent from losing disk phenomenon in the case of unexpected power down, using more parts of mapping tables of backup, one
Denier re-reads the mapping table of backup because power down makes a mistake, to ensure not lose disk.More parts of mapping table schemes are backed up from theory
On can prevent massive store disk from losing disk phenomenon, be not in because power down cause massive store disk not to be recognized by the system
Phenomenon, but shortcoming is that the data that user is ultimately written before power-off can lose, and the loss of this data is not for special occasions
Allow, such as aircraft, accidents happened, and the data being ultimately written are typically critical data, do not allow loss of data.
The content of the invention
It is contemplated that in view of the above-mentioned problems, propose a kind of solution system unexpected power down or non-during massive store
During normal shutdown can not timely and effectively detecting system power-off problems the end-to-end data of the massive store based on power down protection
Protection system.
Technical program of the present invention lies in：
A kind of end-to-end data protection system of massive store based on power down protection, including power module, power module include
System power supply power supply, booster circuit, one-level DC/DC power modules and the two level DC/DC power modules being sequentially connected, power supply mould
System power supply power supply is boosted to+28V by block by+12V, and one-level DC/DC power modules are by+28V voltage outputs+3.3V；Also include
Master control FPGA and FLASH array, is additionally provided with quick power-fail detection circuit between described system power supply power supply and master control FPGA,
Quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, two level DC/DC power modules and master control FPGA with
And FLASH arrays connect respectively；Tantalum capacitor array is provided between booster circuit and one-level DC/DC power modules.
Power filter and over-voltage over-current protection circuit are additionally provided between described system power supply power supply and booster circuit, electricity
The branch road being connected with quick power-fail detection circuit is provided between source filtering and over-voltage over-current protection circuit and booster circuit.
Voltage checking chip is LM339 in described quick power-fail detection circuit, and voltage ratio is compared with Ji Yuan
REF3112AIDB。
Described tantalum capacitor array includes charging module, one-level discharge module and two-stage discharge module in parallel, also wraps
Some tantalum electric capacity in parallel are included, the tantalum electric capacity its one end is connected with one-level discharge module, and the other end is grounded.
Described charging module is high-power resistance, and the span of the resistance is the Ω of 25 Ω~35, and resistor power is full
Sufficient 28*28/R.
Described one-level discharge module and two-stage discharge module is Schottky diode.
Described tantalum electric capacity is CA55 conductive polymer electrolyte tantalum electric capacity.
The technical effects of the invention are that：
Massive store of the present invention makes input voltage be raised to+28V by+12V using booster circuit, can efficiently reduce tantalum electric capacity
Quantity, reduction product cost is brought, reduce the beneficial effect of PCB sizes；On the other hand, using quick power-fail detection circuit, inspection
The slowdown monitoring circuit reaction time is up to 1.3us, rapidly the situation of detecting system power or power-down, when master control FPGA is had more
Between handle power down interrupt routine, improve the security of end-to-end data protection；Finally, using novel C A55 conducting polymers electricity
Matter tantalum electric capacity is solved, substantially increases the reliability and safety of power down protection.
Brief description of the drawings
Fig. 1 is the connection block diagram of the massive store end-to-end data protection system of the invention based on power down protection.
Fig. 2 is the circuit diagram of power-fail detection circuit of the present invention.
Fig. 3 is the theory diagram of power-fail detection circuit of the present invention.
Fig. 4 is the circuit diagram of tantalum capacitor array of the present invention.
Embodiment
The end-to-end data protection system of a kind of massive store based on power down protection, as shown in figure 1, including power supply mould
Block, power module include be sequentially connected system power supply power supply, power filter and over-voltage over-current protection circuit, booster circuit, one
Level DC/DC power modules and two level DC/DC power modules, system power supply power supply are+12V, are pressed through by power filter and mistake
Boosted after stream protection circuit by booster circuit, voltage rises to+28V, and by boosting, raising tank voltage can effectively be prolonged
Long discharge time；One-level DC/DC power modules are by+28V voltage outputs+3.3V；Also include master control FPGA and FLASH array,
Quick power-fail detection circuit, quick power down are additionally provided between described power filter and over-voltage over-current protection circuit and master control FPGA
It is+12V to detect circuit supply voltage, and quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, two level DC/
DC power module is connected and powered for it respectively with master control FPGA and FLASH array；Booster circuit and one-level DC/DC power supply moulds
Tantalum capacitor array is provided between block, the supply voltage of tantalum capacitor array is+28V.
Input voltage is raised to+28V by+12V using booster circuit, tantalum electric capacity quantity can be efficiently reduced, bring drop
Low product cost, reduces the beneficial effect of PCB sizes, and analysis result is as follows：If massive store disk power consumption is 10W, when fast
Fast power-fail detection circuit detects power down to notifying that booster circuit output is still maintained at 28V during master control FPGA during 10V, now
Vmax is 28V, and it is 5V that massive store disk, which can maintain the minimum voltage Vmin of work, and power down protection, which is held time, needs 10ms,
According to formula：0.5 × C (Vmax2-Vmin2)=W × t, the electric capacity now needed are calculated as C ≈ 263.5uF according to formula.
If being not added with booster circuit, tantalum electricity during notice master control FPGA when quick power-fail detection circuit detects power down to 10V
Hold array voltage and also have been reduced to 10V, Vmax now is 10V, and the electric capacity now needed is calculated as C ≈ according to formula
2.67mF, nearly 10 times of capacitance difference, greatly reduces tantalum electric capacity quantity.
As shown in Fig. 2 voltage checking chip is LM339, voltage ratio is described quick power-fail detection circuit compared with Ji Yuan
REF3112AIDB.Exemplified by detecting that+10V confirms as power down, theory diagram is as shown in Figure 2.
Quick power-fail detection circuit is used for the power-down conditions of+12V input powers of detecting system, and energy quick detection works as system
Power down and electrifying condition notify master control FPGA in time, and LM339 comparators export high level and give master control FPGA during system normal power supply,
When system is by+12V power down to 10V（Can be according to being actually needed adjustment threshold value）When, LM339 comparators fast transition exports low electricity
Put down and give master control FPGA, produce high level notice master control FPGA in time when voltage recovers normal, system drops to door from detection voltage
Limit value exports low reset signal notice master control FPGA time the largest of about 1.3 μ s to response, can be rapidly electric in detecting system
Or the situation of power down, master control FPGA there are more time-triggered protocol power-fail interrupt programs, improve the peace of end-to-end data protection
Quan Xing.
Described tantalum capacitor array is as shown in figure 3, include charging module, one-level discharge module and the two-stage discharge of parallel connection
Module, in addition to some tantalum electric capacity in parallel, the tantalum electric capacity its one end are connected with one-level discharge module, and the other end connects
Ground.Described charging module is high-power resistance, and the span of the resistance is the Ω of 25 Ω~35, and resistor power meets 28*
28/R.Described one-level discharge module and two-stage discharge module is Schottky diode.Described tantalum electric capacity is led for CA55
Electric polymer electrolyte tantalum electric capacity, new tantalum electric capacity have the advantages that not burn, not exploded, benign failure mode, greatly improves
The reliability and safety of power down protection.
Tantalum capacitor array is used for energy storage, is discharged in time when system power failure and extends the power down of massive store disk to preserve mapping
Table and the data being ultimately written, tantalum capacitor array design use high-power resistance current-limiting charge, will not because of it is upper electric when because appearance
Property load effect massive store disk normally start, discharged using Schottky diode during electric discharge, forward voltage drop is no more than
0.5V, as shown in Figure 3.
For the size of capacitance needed for tantalum capacitor array according to setting is actually needed, calculation formula is as follows.
Tantalum capacitor array calculates according to law of conservation of energy： 0.5×C(Vmax2-Vmin2) = W×t.
Vmax is voltage when detecting system power failure, and Vmin is massive store disk minimum, and W is Large Copacity
Operating power consumption during storage dish power down protection, C are total capacitance of massive store disk tantalum electric capacity, and t detects for massive store disk
Work after to power down is held time, and can be seen that Vmax is bigger according to formula, the time that identical electric capacity maintains is longer.
Claims (7)
- A kind of 1. end-to-end data protection system of massive store based on power down protection, it is characterised in that：Including power module, Power module includes system power supply power supply, booster circuit, one-level DC/DC power modules and the two level DC/DC electricity being sequentially connected System power supply power supply is boosted to+28V by source module, power module by+12V, and one-level DC/DC power modules are by+28V voltage outputs +3.3V；Also include master control FPGA and FLASH array, be additionally provided between described system power supply power supply and master control FPGA quick Power-fail detection circuit, quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, two level DC/DC power modules It is connected respectively with master control FPGA and FLASH array；Tantalum electric capacity battle array is provided between booster circuit and one-level DC/DC power modules Row.
- 2. the end-to-end data protection system of the massive store according to claim 1 based on power down protection, its feature exist In：Power filter and over-voltage over-current protection circuit, power supply filter are additionally provided between described system power supply power supply and booster circuit Involve the branch road for being provided between over-voltage over-current protection circuit and booster circuit and being connected with quick power-fail detection circuit.
- 3. the end-to-end data protection system of the massive store according to claim 2 based on power down protection, its feature exist In：Voltage checking chip is LM339 in described quick power-fail detection circuit, and voltage ratio is REF3112AIDB compared with Ji Yuan.
- 4. the end-to-end data protection system of the massive store according to claim 3 based on power down protection, its feature exist In：Described tantalum capacitor array includes charging module, one-level discharge module and two-stage discharge module in parallel, in addition to some Tantalum electric capacity in parallel, the tantalum electric capacity its one end are connected with one-level discharge module, and the other end is grounded.
- 5. the end-to-end data protection system of the massive store according to claim 4 based on power down protection, its feature exist In：Described charging module is high-power resistance, and the span of the resistance is the Ω of 25 Ω~35, and resistor power meets 28* 28/R。
- 6. the end-to-end data protection system of the massive store according to claim 5 based on power down protection, its feature exist In：Described one-level discharge module and two-stage discharge module is Schottky diode.
- 7. the end-to-end data protection system of the massive store according to claim 6 based on power down protection, its feature exist In：Described tantalum electric capacity is CA55 conductive polymer electrolyte tantalum electric capacity.
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| CN201711447075.4A CN107885631A (en) | 2017-12-27 | 2017-12-27 | A kind of end-to-end data protection system of massive store based on power down protection |
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| CN201711447075.4A CN107885631A (en) | 2017-12-27 | 2017-12-27 | A kind of end-to-end data protection system of massive store based on power down protection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509356A (en) * | 2018-05-24 | 2018-09-07 | 湖南君瀚信息技术有限公司 | Solid state disk with multistage power down protection |
| CN109669369A (en) * | 2018-11-26 | 2019-04-23 | 安徽正刚新能源科技有限公司 | A kind of real-time acquisition analysis system |
| CN110265078A (en) * | 2019-06-24 | 2019-09-20 | 长江存储科技有限责任公司 | A kind of power-down protection circuit |
| CN112116942A (en) * | 2019-06-21 | 2020-12-22 | 北京自动化控制设备研究所 | Circuit for performing segmented protection on FLASH by utilizing FPGA |
| CN112165155A (en) * | 2020-08-28 | 2021-01-01 | 珠海格力电器股份有限公司 | Power-down protection device, robot controller and power-down protection method thereof |
| CN112948183A (en) * | 2021-03-30 | 2021-06-11 | 西安微电子技术研究所 | Software and hardware combined embedded device and method |
| CN113036899A (en) * | 2021-03-10 | 2021-06-25 | 中国科学院长春光学精密机械与物理研究所 | Undervoltage and power-down protection system of aviation photoelectric equipment |
| US11048316B2 (en) | 2018-09-17 | 2021-06-29 | Contemporary Amperex Technology Co., Limited | Power-down detection circuit and control method |
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| CN110265078A (en) * | 2019-06-24 | 2019-09-20 | 长江存储科技有限责任公司 | A kind of power-down protection circuit |
| CN112165155A (en) * | 2020-08-28 | 2021-01-01 | 珠海格力电器股份有限公司 | Power-down protection device, robot controller and power-down protection method thereof |
| CN113036899A (en) * | 2021-03-10 | 2021-06-25 | 中国科学院长春光学精密机械与物理研究所 | Undervoltage and power-down protection system of aviation photoelectric equipment |
| CN112948183A (en) * | 2021-03-30 | 2021-06-11 | 西安微电子技术研究所 | Software and hardware combined embedded device and method |
| CN112948183B (en) * | 2021-03-30 | 2023-05-12 | 西安微电子技术研究所 | Software and hardware combined embedded device and method |
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Application publication date: 20180406 |