CN105224477A - Data guard method after a kind of storage system powered-off fault - Google Patents
Data guard method after a kind of storage system powered-off fault Download PDFInfo
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- CN105224477A CN105224477A CN201510619394.3A CN201510619394A CN105224477A CN 105224477 A CN105224477 A CN 105224477A CN 201510619394 A CN201510619394 A CN 201510619394A CN 105224477 A CN105224477 A CN 105224477A
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Abstract
The present invention be more particularly directed to data guard method after a kind of storage system powered-off fault.Data guard method after this storage system powered-off fault, when system generation powered-off fault, first described power management module detects the disappearance that external power source inputs, then notify back-up source module and caching management module, back-up source module and caching management module complete power supply and respectively to data cached protection; After system electrification, described power management module detects that external power source inputs, and notifies that described data dispatch module completes the data cached recovery of protection.Data guard method after this storage system powered-off fault; when storage system powered-off fault; when not using UPS; data cached protection is completed by lithium battery; data cached by data protection after system re-powers; return to again in buffer memory, storage system can continue to use the data in buffer memory, reaches the object of data protection.
Description
Technical field
The present invention relates to design of memory systems technical field, particularly data guard method after a kind of storage system powered-off fault.
Background technology
Storage system is the important place that data message is preserved, and data message be country, one of enterprise and the society basis of depending on for existence and development, the various aspects that storage system applications is lived people, especially in national strategy department, the for example field such as finance, telecommunications, petroleum prospecting, the weather satellite needs that all need high-end storage systems nowadays could meet current operation to develop, therefore storage system becomes the nucleus equipment of China's informatization.
Being stored data within the storage system, is to have loss, the generation of damage equivalent risk.And the various technology for data protection is also arisen at the historic moment.A Data Protection Technologies part protects for the data being saved in disk.Need the data to working as on front disk exactly, back up, in case precipitate disk failures, or the data that other a variety of causes cause can not be accessed, or partial data damages, and has had influence on operation layer.Data after backup, can after data failure, and the very first time returns to produces on disk, thus farthest falls end loss.
In the abnormal power-down situation of Data Protection Technologies besides for burst, protect for data cached.Outside powered-off fault can cause the loss of data in the buffer memory of disk or storage system, finally causes the loss of data of user.Data cached in order to protect, the equipment such as user more options UPS, by continuing to power a period of time to storage system, complete the data write disk of buffer memory in time.
For in above-mentioned powered-off fault situation, when not using UPS, completing data cached protection by lithium battery, reaching the object one method of protection user data.The present invention proposes data guard method after a kind of storage system powered-off fault.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides a kind of cost low, data guard method after the storage system powered-off fault that efficiency is high.
The present invention is achieved through the following technical solutions:
Data guard method after a kind of storage system powered-off fault, is characterized in that: comprise power management module, caching management module, data dispatch module, back-up source module and data protection module;
When system generation powered-off fault, first described power management module detects the disappearance that external power source inputs, and then notifies back-up source module and caching management module, and back-up source module and caching management module complete power supply and respectively to data cached protection; After system electrification, described power management module detects that external power source inputs, and notifies that described data dispatch module completes the data cached recovery of protection.
Data guard method after this storage system powered-off fault, comprises the following steps:
(1) when storage system generation powered-off fault, described power management module first detects the disappearance that external power source inputs, and then notifies that back-up source module is devoted oneself to work, starts alternative external power source, also notifies that caching management module external power source disappears simultaneously;
(2) after receiving the notice of external power source disappearance, described back-up source module provides power supply for critical piece, except the necessary parts needed for data protection, closes the power supply of miscellaneous part, to save the consumption of electric quantity of lithium battery, caching management module then locks user cache district and data cached;
(3) described data dispatch module is by the user cache data copy of locking to data protection module, completes data cached protection;
(4) notify after described data dispatch module completes data dispatch that the data cached copy of power management module is complete;
(5) described power management module receive data dispatch module complete data dispatch after notice after, close the power supply of backup battery module, close storage system, enter off-mode;
(6), after system normally powers on, when described data dispatch module detects in data protection module the data having user to protect, data copy user protected, to buffer area, completes the data cached recovery of protection, for user.
Described data protection module adopts the non-volatile storage medium of power down.
The invention has the beneficial effects as follows: data guard method after this storage system powered-off fault; when storage system powered-off fault; when not using UPS; data cached protection is completed by lithium battery; data cached by data protection after system re-powers; return to again in buffer memory, storage system can continue to use the data in buffer memory, reaches the object of data protection.
Accompanying drawing explanation
Accompanying drawing 1 is protection schematic flow sheet data cached after storage system powered-off fault of the present invention;
Accompanying drawing 2 is data guard method schematic diagram after storage system powered-off fault of the present invention.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention, and below in conjunction with accompanying drawing, the present invention is described in detail.
Data guard method after this storage system powered-off fault, comprises power management module, caching management module, data dispatch module, back-up source module and data protection module;
When system generation powered-off fault, first described power management module detects the disappearance that external power source inputs, and then notifies back-up source module and caching management module, and back-up source module and caching management module complete power supply and respectively to data cached protection; After system electrification, described power management module detects that external power source inputs, and notifies that described data dispatch module completes the data cached recovery of protection.
Data guard method after this storage system powered-off fault, comprises the following steps:
(1) when storage system generation powered-off fault, described power management module first detects the disappearance that external power source inputs, and then notifies that back-up source module is devoted oneself to work, starts alternative external power source, also notifies that caching management module external power source disappears simultaneously;
(2) after receiving the notice of external power source disappearance, described back-up source module provides power supply for critical piece, except the necessary parts needed for data protection, closes the power supply of miscellaneous part, to save the consumption of electric quantity of lithium battery, caching management module then locks user cache district and data cached;
(3) described data dispatch module is by the user cache data copy of locking to data protection module, completes data cached protection;
(4) notify after described data dispatch module completes data dispatch that the data cached copy of power management module is complete;
(5) described power management module receive data dispatch module complete data dispatch after notice after, close the power supply of backup battery module, close storage system, enter off-mode;
(6), after system normally powers on, when described data dispatch module detects in data protection module the data having user to protect, data copy user protected, to buffer area, completes the data cached recovery of protection, for user.
Described data protection module adopts the non-volatile storage medium of power down.
After this storage system powered-off fault, data guard method comprises once the process of data cached protection and the process of once data cached recovery.Data cached after a powered-off fault, complete data cached protection by lithium battery, data cached protection, after system re-powers, returns to again in buffer memory, and storage system can continue to use the data in buffer memory, reaches the object of data protection.
Claims (3)
1. a data guard method after storage system powered-off fault, is characterized in that: comprise power management module, caching management module, data dispatch module, back-up source module and data protection module;
When system generation powered-off fault, first described power management module detects the disappearance that external power source inputs, and then notifies back-up source module and caching management module, and back-up source module and caching management module complete power supply and respectively to data cached protection; After system electrification, described power management module detects that external power source inputs, and notifies that described data dispatch module completes the data cached recovery of protection.
2. data guard method after storage system powered-off fault according to claim 1, is characterized in that comprising the following steps:
(1) when storage system generation powered-off fault, described power management module first detects the disappearance that external power source inputs, and then notifies that back-up source module is devoted oneself to work, starts alternative external power source, also notifies that caching management module external power source disappears simultaneously;
(2) after receiving the notice of external power source disappearance, described back-up source module provides power supply for critical piece, except the necessary parts needed for data protection, closes the power supply of miscellaneous part, to save the consumption of electric quantity of lithium battery, caching management module then locks user cache district and data cached;
(3) described data dispatch module is by the user cache data copy of locking to data protection module, completes data cached protection;
(4) notify after described data dispatch module completes data dispatch that the data cached copy of power management module is complete;
(5) described power management module receive data dispatch module complete data dispatch after notice after, close the power supply of backup battery module, close storage system, enter off-mode;
(6), after system normally powers on, when described data dispatch module detects in data protection module the data having user to protect, data copy user protected, to buffer area, completes the data cached recovery of protection, for user.
3. data guard method after storage system powered-off fault according to claim 1 and 2, is characterized in that: described data protection module adopts the non-volatile storage medium of power down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510619394.3A CN105224477A (en) | 2015-09-25 | 2015-09-25 | Data guard method after a kind of storage system powered-off fault |
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| CN201510619394.3A CN105224477A (en) | 2015-09-25 | 2015-09-25 | Data guard method after a kind of storage system powered-off fault |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354241A (en) * | 2016-08-31 | 2017-01-25 | 浪潮电子信息产业股份有限公司 | Method, system and device for power fail safeguard of data |
| CN107203455A (en) * | 2017-05-31 | 2017-09-26 | 郑州云海信息技术有限公司 | Prevent that standby electric module crosses the method and system put when storage system power down fan from hanging dead |
| CN110456897A (en) * | 2018-05-08 | 2019-11-15 | 杭州海康威视数字技术股份有限公司 | Power-off protection method, protective device and the server cluster of electronic equipment |
| CN111968694A (en) * | 2020-09-07 | 2020-11-20 | 湖南国科微电子股份有限公司 | Data protection device, storage equipment and storage system |
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| CN201788502U (en) * | 2010-08-20 | 2011-04-06 | 北京联创信安科技有限公司 | Magnetic-disc caching data backup and recovery device for accidental power outage |
| CN202013742U (en) * | 2011-04-28 | 2011-10-19 | 浪潮电子信息产业股份有限公司 | Redundant array of independent disks (RAID) card with data caching protection |
| CN104881375A (en) * | 2014-05-28 | 2015-09-02 | 陈杰 | Power-down data protection method and device of storage system |
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| JP2004272309A (en) * | 2003-03-04 | 2004-09-30 | Ricoh Co Ltd | Non-volatile memory data protecting device |
| CN201788502U (en) * | 2010-08-20 | 2011-04-06 | 北京联创信安科技有限公司 | Magnetic-disc caching data backup and recovery device for accidental power outage |
| CN202013742U (en) * | 2011-04-28 | 2011-10-19 | 浪潮电子信息产业股份有限公司 | Redundant array of independent disks (RAID) card with data caching protection |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354241A (en) * | 2016-08-31 | 2017-01-25 | 浪潮电子信息产业股份有限公司 | Method, system and device for power fail safeguard of data |
| CN107203455A (en) * | 2017-05-31 | 2017-09-26 | 郑州云海信息技术有限公司 | Prevent that standby electric module crosses the method and system put when storage system power down fan from hanging dead |
| CN107203455B (en) * | 2017-05-31 | 2020-08-25 | 苏州浪潮智能科技有限公司 | Method and system for preventing over-discharge of standby power module when power-down fan of storage system is hung up |
| CN110456897A (en) * | 2018-05-08 | 2019-11-15 | 杭州海康威视数字技术股份有限公司 | Power-off protection method, protective device and the server cluster of electronic equipment |
| CN111968694A (en) * | 2020-09-07 | 2020-11-20 | 湖南国科微电子股份有限公司 | Data protection device, storage equipment and storage system |
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Application publication date: 20160106 |