CN207623964U - 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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- CN207623964U CN207623964U CN201721863475.9U CN201721863475U CN207623964U CN 207623964 U CN207623964 U CN 207623964U CN 201721863475 U CN201721863475 U CN 201721863475U CN 207623964 U CN207623964 U CN 207623964U
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Abstract
The utility model is specifically related to a kind of end-to-end data protection system of 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 sequentially connected system power supply power supply, booster circuit, level-one DC/DC power modules and two level DC/DC power modules; system power supply power supply is boosted to+28V by power module by+12V, and level-one DC/DC power modules are by+28V voltage outputs+3.3V；It further include master control FPGA and FLASH array, it is additionally provided with quick power-fail detection circuit between the 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 separately connected with master control FPGA and FLASH array；Tantalum capacitor array is equipped between booster circuit and level-one DC/DC power modules.The utility model makes master control FPGA have more time-triggered protocol power-fail interrupt programs using quick power-fail detection circuit, improves the safety of end-to-end data protection.
Description
Technical field
The utility model is related to big data technical field of memory, and in particular to a kind of massive store based on power down protection
End-to-end data protection 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 capacity,
Capacity requirement is increasing, and faster, interface requirement is diversified, while safety, confidentiality and the importance of data for rate request
It has attracted more and more attention from people.
In the epoch of this " gold is valuable, and data are priceless ", how effective protection data do not lose it is most important, especially
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 it causes at high speed
The power consumption bigger of power supply requirement, second is that power-down conditions and the execution power down protection of notice master control in time are quickly detected when power down,
Third, storage device makes memory capacity maximize in limited dimensional space, it is more this requires that cannot be placed when design power down
Storage capacitor.The end-to-end data guard method of massive store based on power down protection is proposed according to the above situation spy.
Present many manufacturers lose disk phenomenon in the case of unexpected power down in order to prevent, using more parts of mapping tables of backup, one
Denier re-reads the mapping table of backup because mistake occurs for power down, 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 the disadvantage is that the data that user is ultimately written before power-off can lose, the loss of this data is not for special occasions
Allow, if accidents happened for aircraft, the data being ultimately written are typically critical data, do not allow loss of data.
Invention content
The utility model is intended in view of the above-mentioned problems, proposing a kind of solution unexpected power down of system during massive store
Or when abnormal shutdown cannot timely and effectively detecting system power-off problems the massive store based on power down protection it is end-to-end
Data protection system.
The technical solution of the utility model is：
A kind of end-to-end data protection system of massive store based on power down protection, including power module, power module
Including sequentially connected system power supply power supply, booster circuit, level-one DC/DC power modules and two level DC/DC power modules, electricity
System power supply power supply is boosted to+28V by source module by+12V, and level-one DC/DC power modules are by+28V voltage outputs+3.3V；Also
Including master control FPGA and FLASH array, quick detection of power loss is additionally provided between the system power supply power supply and master control FPGA
Circuit, quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, two level DC/DC power modules and master control
FPGA and FLASH arrays are separately connected；Tantalum capacitor array is equipped between booster circuit and level-one DC/DC power modules.
Power filter and over-voltage over-current protection circuit are additionally provided between the system power supply power supply and booster circuit, electricity
It is equipped with the branch being connect with quick power-fail detection circuit between source filtering and over-voltage over-current protection circuit and booster circuit.
Voltage checking chip is LM339 in the quick power-fail detection circuit, and voltage compares Ji Yuan and is
REF3112AIDB。
The tantalum capacitor array includes charging module, level-one discharge module and the two-stage discharge module of parallel connection, is also wrapped
The tantalum capacitance of several parallel connections is included, the tantalum capacitance one end is connect with level-one discharge module, and the other end is grounded.
The charging module is high-power resistance, and the value range of the resistance is the Ω of 25 Ω~35, and resistor power is full
Sufficient 28*28/R.
The level-one discharge module and two-stage discharge module is Schottky diode.
The tantalum capacitance is CA55 conductive polymer electrolyte tantalum capacitances.
The utility model has technical effect that：
The utility model massive store makes input voltage be raised to+28V by+12V using booster circuit, can effectively subtract
Few tantalum capacitance quantity, brings reduction product cost, reduces the advantageous effect of PCB sizes；On the other hand, using quick detection of power loss
Circuit, detection circuit reaction time are up to 1.3us, rapidly the case where detecting system power or power-down, master control FPGA are made to have
More time-triggered protocol power-fail interrupt programs, improve the safety of end-to-end data protection；Finally, conductive using novel C A55
Polymer dielectric tantalum capacitance, substantially increases the reliability and safety of power down protection.
Description of the drawings
Fig. 1 is the connection block diagram of the end-to-end data protection system of massive store of the utility model based on power down protection.
Fig. 2 is the circuit diagram of the utility model power-fail detection circuit.
Fig. 3 is the functional block diagram of the utility model power-fail detection circuit.
Fig. 4 is the circuit diagram of the utility model tantalum capacitor array.
Specific implementation mode
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 sequentially connected system power supply power supply, power filter and over-voltage over-current protection circuit, booster circuit, one
Grade 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
It is boosted by booster circuit after stream protection circuit, voltage rises to+28V, improves tank voltage by boosting and can effectively prolong
Long discharge time；Level-one DC/DC power modules are by+28V voltage outputs+3.3V；Further include master control FPGA and FLASH array,
It is additionally provided with quick power-fail detection circuit, quick power down between the power filter and over-voltage over-current protection circuit and master control FPGA
Detection circuit supply voltage is+12V, and quick power-fail detection circuit, master control FPGA and FLASH array are sequentially connected, two level DC/
DC power module is separately connected with master control FPGA and FLASH array and powers for it；Booster circuit and level-one DC/DC power supply moulds
Tantalum capacitor array is equipped between block, the supply voltage of tantalum capacitor array is+28V.
So that input voltage is raised to+28V by+12V using booster circuit, tantalum capacitance quantity can be efficiently reduced, bring drop
Low product cost, reduces the advantageous 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 when master control FPGA when 10V, at this time
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 capacitance needed at this time are calculated as C ≈ 263.5uF according to formula.
If being not added with booster circuit, tantalum electricity when 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 at this time is 10V, and the capacitance needed at this time is calculated as C ≈ according to formula
2.67mF, nearly 10 times of capacitance difference, greatly reduces tantalum capacitance quantity.
As shown in Fig. 2, voltage checking chip is LM339, voltage compares Ji Yuan and is the quick power-fail detection circuit
REF3112AIDB.For detecting that+10V is confirmed as power down, functional block diagram is as shown in Figure 2.
The power-down conditions of+12V input power of the quick power-fail detection circuit for detecting system, can quickly detect and work as system
Power down and electrifying condition notify master control FPGA in time, and LM339 comparators export high level and give master control FPGA when system normal power supply,
When system is by+12V power down to 10V（Threshold value can be adjusted according to actual needs）When, LM339 comparator fast transitions export low electricity
It puts down and gives master control FPGA, generate high level in time when voltage restores normal and master control FPGA, system is notified to drop to door from detection voltage
Limit value exports the time the largest of about 1.3 μ s of low reset signal notice master control FPGA to response, can rapidly detecting system power on
Or the case where power down, so that master control FPGA there are more time-triggered protocol power-fail interrupt programs, improves the peace of end-to-end data protection
Quan Xing.
The tantalum capacitor array is as shown in figure 3, including charging module, level-one discharge module and two-stage discharge in parallel
Module further includes the tantalum capacitance of several parallel connections, and the tantalum capacitance one end is connect with level-one discharge module, and the other end connects
Ground.The charging module is high-power resistance, and the value range of the resistance is the Ω of 25 Ω~35, and resistor power meets 28*
28/R.The level-one discharge module and two-stage discharge module is Schottky diode.The tantalum capacitance is led for CA55
Electric polymer electrolyte tantalum capacitance, novel tantalum capacitance have many advantages, such as not burn, not explode, benign failure mode, greatly improve
The reliability and safety of power down protection.
Tantalum capacitor array is used for energy storage, discharges 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 when powering on because hold
Property load effect massive store disk normally start, when electric discharge, is discharged using Schottky diode, and forward voltage drop is no more than
0.5V, as shown in Figure 3.
The size of capacitance needed for tantalum capacitor array is set according to actual needs, and calculation formula is as follows.
Tantalum capacitor array is calculated 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 capacity
Operating power consumption when storage dish power down protection, C are total capacitance of massive store disk tantalum capacitance, 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 capacitance maintains is longer.
Claims (7)
1. a kind of 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 sequentially connected system power supply power supply, booster circuit, level-one DC/DC power modules and two level DC/DC electricity
System power supply power supply is boosted to+28V by source module, power module by+12V, and level-one DC/DC power modules are by+28V voltage outputs
+3.3V；Further include master control FPGA and FLASH array, is additionally provided between the system power supply power supply and master control FPGA quickly
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 separately connected with master control FPGA and FLASH array；Tantalum capacitance battle array is equipped between booster circuit and level-one 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, feature exist
In：Power filter and over-voltage over-current protection circuit, power supply filter are additionally provided between the system power supply power supply and booster circuit
Involve the branch for being equipped between over-voltage over-current protection circuit and booster circuit and being connect 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, feature exist
In：Voltage checking chip is LM339 in the quick power-fail detection circuit, and it is REF3112AIDB that voltage, which compares Ji Yuan,.
4. the end-to-end data protection system of the massive store according to claim 3 based on power down protection, feature exist
In：The tantalum capacitor array includes charging module, level-one discharge module and the two-stage discharge module of parallel connection, further includes several
Tantalum capacitance in parallel, the tantalum capacitance one end are connect with level-one 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, feature exist
In：The charging module is high-power resistance, and the value range 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, feature exist
In：The level-one 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, feature exist
In：The tantalum capacitance is CA55 conductive polymer electrolyte tantalum capacitances.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721863475.9U CN207623964U (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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| CN201721863475.9U CN207623964U (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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885631A (en) * | 2017-12-27 | 2018-04-06 | 西安奇维科技有限公司 | A kind of end-to-end data protection system of massive store based on power down protection |
| CN110307142A (en) * | 2019-06-28 | 2019-10-08 | 大唐半导体科技有限公司 | A kind of control method and air compressor machine of air compressor machine |
| CN112882656A (en) * | 2021-02-03 | 2021-06-01 | 深圳市麦格米特控制技术有限公司 | Power failure data storage method and power failure data storage circuit |
-
2017
- 2017-12-27 CN CN201721863475.9U patent/CN207623964U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885631A (en) * | 2017-12-27 | 2018-04-06 | 西安奇维科技有限公司 | A kind of end-to-end data protection system of massive store based on power down protection |
| CN110307142A (en) * | 2019-06-28 | 2019-10-08 | 大唐半导体科技有限公司 | A kind of control method and air compressor machine of air compressor machine |
| CN110307142B (en) * | 2019-06-28 | 2020-09-29 | 大唐半导体科技有限公司 | Control method of air compressor and air compressor |
| CN112882656A (en) * | 2021-02-03 | 2021-06-01 | 深圳市麦格米特控制技术有限公司 | Power failure data storage method and power failure data storage circuit |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20211021 Address after: 710117 No. a1-134, building 4, phase II, information industry park, No. 526, Xitai Road, high tech Zone, Xi'an, Shaanxi Province Patentee after: Xi'an siduoruizhi Information Technology Co.,Ltd. Patentee after: Leizhi digital system technology (Xi'an) Co.,Ltd. Address before: 710077, No. 8, C zone, pioneering research and Development Park, 69 Kam Yip Road, hi tech Zone, Shaanxi, Xi'an Patentee before: XI'AN KEYWAY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211202 Address after: 710117 a2-02, building 4, phase II, information industry park, No. 526, banxitai Road, Xinglong Street, high tech Zone, Xi'an, Shaanxi Province Patentee after: Leizhi digital system technology (Xi'an) Co.,Ltd. Address before: 710117 No. a1-134, building 4, phase II, information industry park, No. 526, Xitai Road, high tech Zone, Xi'an, Shaanxi Province Patentee before: Xi'an siduoruizhi Information Technology Co.,Ltd. Patentee before: Leizhi digital system technology (Xi'an) Co., Ltd |
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