CN100511166C - High-speed storage device and method for high-speed updating data - Google Patents
High-speed storage device and method for high-speed updating data Download PDFInfo
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- CN100511166C CN100511166C CNB2006100083832A CN200610008383A CN100511166C CN 100511166 C CN100511166 C CN 100511166C CN B2006100083832 A CNB2006100083832 A CN B2006100083832A CN 200610008383 A CN200610008383 A CN 200610008383A CN 100511166 C CN100511166 C CN 100511166C
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Abstract
Present invention discloses a rapid storage device. It contains nonvolatile storage, control unit and storage cell, wherein nonvolatile storage for backing up updating block data, storage cell erasing updating block data after nonvolatile storage nonvolatile storage executing backing up operation, control unit updating current updating block according to new data and the backed data in nonvolatile storage. Present invention also discloses a quickly updating data method, it contains backing up corresponded updating block data to nonvolatile storage, then erasing updating block, updating current updating block according to new data and backed data in nonvolatile storage. Present invention discloses a quickly updating data method. Present invention also provided device and method speed up flash memory updating data speed and prolong flash memory service life.
Description
Technical field
The present invention relates to memory technology, refer to the method for a kind of speed storage device and fast updating data especially.
Background technology
Flash memory (Flash) is big owing to having memory capacity, the power down data do not lose, can be repeatedly erasable etc. advantage, just progressively replace other semiconductor memories and be widely used in switch, router, mobile phone, the personal digital assistant products such as (PDA).In these products,, mass data can be moved quickly and easily and exchanges with the memory bank of Flash as storage data and application program.
The process of Flash reading of data is identical substantially with the process of general memory read data, can realize at random, read fast.And the write operation of Flash is different with general storer, and Flash wants all data in the first erase block memory, new data is write the storage block after wiping again.Because the size of Flash storage block generally is 64K or 128K,, also the new data that will need again to upgrade behind all data erases in the pairing storage block of new data more to be write even therefore in data updating process, upgrade the data of a byte.Here, the more pairing storage block of new data is called the renewal piece.
The concrete more process of new data is briefly described as follows: at first more all copying datas in the pairing renewal piece of new data are to internal memory, wipe current renewal piece then, again the new data that does not need data updated and needs to upgrade in the internal memory is write back current renewal piece.Because the instability of data stored in memory, Flash more be easy in the process of new data to cause owing to system reset, power down or user by force terminating operation make the problem of loss of data, caused the huge damage to file system, serious meeting makes whole file system unavailable.
In actual applications, for solve Flash in upgrading data procedures since system reset, power down or user by force terminating operation cause the problem of renewal data failure, the common practice is as backup block, with the function of backup block replacement internal memory with a storage block among the Flash.Because Flash has the function that the power down data are not lost, therefore can solve since system reset, power down or user by force terminating operation cause the problem of renewal data failure.
In the prior art, the Flash inner structure that is provided with backup block as shown in Figure 1.Comprise control module 101, storage unit 102 and backup block 103 among the Flash100.Described control module 101 is used for control store unit 102 and reads, writes and the process of new data more.Described storage unit 102 is used to store data.Described backup block 103 is used for redundant memory cell 102 and needs data updated; When recovery is restarted in system, Backup Data is write back storage unit 102 again by control module 101 controls.Wherein, Flash more new data detailed process as shown in Figure 2:
Step 201: when data need be upgraded, the data backup upgraded in the piece was operated in the pairing storage unit 102 to backup block 103 with current renewal in control module 101 control store unit 102.Wherein, upgrade the renewal piece in the pairing storage unit 102 of operation, by the definite storage block in data place to be updated.
Step 202: it is effective that control module 101 is provided with the backup mark.
Step 203: all data in control module 101 eraseable memory units 102 in the current renewal piece.
Step 204: control module 101 will not need data updated to write back current renewal piece again in the backup block 103, and with the new data current renewal piece that writes direct.
Step 205: after renewal is finished, control module 101 be provided with the backup be labeled as invalid.
Step 206: control module 101 is wiped the Backup Data in the backup block 103.
Though, more new technological process as shown in Figure 2 can solve owing to system reset, power down or user by force terminating operation cause the problem of upgrading data failure, but in renewal process, carried out the operation of wiping the Flash storage block for twice, be respectively upgrade in the step 203 piece wipe with step 206 in the wiping of backup block, the erase process of well-known Flash storage block is consuming time longer, therefore the erase operation that has produced owing to the Flash storage block makes the long problem of Flash data updating process, has had a strong impact on the travelling speed and the efficient of system; Simultaneously, owing to all need the backup block among the Flash is carried out erase operation in each renewal process, and the erasing times of storage block is limited among the Flash, and therefore frequent erase operation has shortened the serviceable life of backup block among the Flash greatly, and then has also shortened the serviceable life of Flash.In addition, in the process that writes new data in upgrading piece is not need data updated to write back the renewal piece from backup block 103, and with the new data renewal piece that writes direct, so as can be seen renewal complicated operating process, renewal process is made mistakes easily, has reduced the disaster tolerance of Flash File System.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of speed storage device, uses this device and can improve the more speed of new data of Flash.
Another fundamental purpose of the present invention is to provide the method for fast updating data, uses this method and can improve the Flash more speed of new data and the disaster tolerance that improves Flash File System.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of speed storage device comprises flash memory at least, comprises control module and storage unit in the flash memory at least, and the operation of reading and writing is carried out in control module control store unit, and this device further comprises: nonvolatile memory;
Described control module when being used for more new data, is operated all data backups of upgrading in the pairing storage unit in the piece to nonvolatile memory with current renewal, and backup is set is labeled as effectively; And after in eraseable memory unit, upgrading data in the piece, the data that are not updated that back up in new data and the nonvolatile memory are write back current renewal piece upgrading current renewal piece, and be provided with backup be labeled as invalid; Perhaps, directly in nonvolatile memory, carry out Data Update according to new data, the renewal piece in the eraseable memory unit, after the data after nonvolatile memory upgraded write back renewal piece in the storage unit, be provided with backup be labeled as invalid.
Wherein, described nonvolatile memory is: non-volatile RAM, electricallyerasable ROM (EEROM) or hard disk.
A kind of method of fast updating data when being the flash memory for updating data of backup block with the nonvolatile memory, is provided with the backup mark, and carries out following steps:
A1, with all data backups in the current renewal operation institute corresponding renewal piece to nonvolatile memory; Backup is set is labeled as effectively, be used for the designation data backup effectively;
B1, wipe current renewal and operate pairing renewal piece, upgrade backed up data in the nonvolatile memory with new data, and the data in the nonvolatile memory after will upgrading write back current renewal piece; Backup is set is labeled as invalidly, be used for the designation data backup invalidation; Perhaps, upgrade backed up data in the nonvolatile memory, wipe current renewal and operate pairing renewal piece, the data after upgrading in the nonvolatile memory are write back current renewal piece with new data; Backup is set is labeled as invalidly, be used for the designation data backup invalidation.
In addition, this method further comprises: when system recovery is restarted, under backup mark effective situation with nonvolatile memory in backed up data write back the renewal piece.
A kind of method of fast updating data when being the flash memory for updating data of backup block with the nonvolatile memory, is provided with the backup mark, and carries out following steps:
With all data backups in the current renewal operation institute corresponding renewal piece to nonvolatile memory;
Upgrade backed up data in the nonvolatile memory with new data; Backup is set is labeled as effectively, be used for the designation data backup effectively;
Wipe current renewal and operate pairing renewal piece; Data after upgrading in the nonvolatile memory are write back current renewal piece; Backup is set is labeled as invalidly, be used for the designation data backup invalidation.
In addition, this method further comprises: when system recovery is restarted, under the effective situation of backup mark, wipe current renewal and operate pairing renewal piece; Data after upgrading in the nonvolatile memory are write back current renewal piece.
A kind of speed storage device provided by the present invention, with the backup block of the backup block among the nonvolatile memory replacement Flash as Flash, reduced the number of times of in upgrading data procedures, wiping the Flash storage block, therefore accelerated the more speed of new data of Flash, and then accelerated the speed that Flash reads and writes data, improve the travelling speed and the efficient of total system, prolonged the serviceable life of Flash simultaneously.Show that through experiment test the file that uses the storage block among the FLASH to rewrite a 13M size as backup block needs 7.4 minutes; And introduce after the backup block of NVRAM as Flash, rewrite an onesize 13M file and only need 4.3 minutes.
Simultaneously, the present invention also provides a kind of nonvolatile memory that utilizes to replace among the Flash backup block as the method for the fast updating data of Flash backup block, this method is owing to utilize nonvolatile memory to replace backup block among the Flash as the backup block of Flash, therefore reduced the number of times of wiping the Flash storage block in the process of new data more, accelerated the more speed of new data of Flash, accelerated the speed that Flash reads and writes data, thereby improved the travelling speed and the efficient of total system, prolonged the serviceable life of Flash.
In addition, the present invention provide again a kind of in Backup Data the method for the fast updating data of new data more, this method is owing to carry out Data Update in backed up data, the data that to upgrade write the renewal piece then, therefore reduced the complexity of Flash renewal process in the prior art, improve the disaster tolerance of Flash File System, improved the survivability of system.
Description of drawings
Fig. 1 is the structural representation of prior art Flash;
Fig. 2 is the more process flow diagram of new data of prior art Flash;
Fig. 3 is the apparatus structure synoptic diagram of embodiment one among the present invention;
Fig. 4 is the apparatus structure synoptic diagram of embodiment two among the present invention;
Fig. 5 is the method flow diagram of embodiment two among the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below enumerate embodiment, the present invention is described in further detail.
Embodiment one
In order to improve the more speed of new data of Flash, and solve terminating operation and make the problem of upgrading the data manipulation failure by force simultaneously system reset, power down or user, adopt the method that non-volatile RAM (NVRAM) is set to the Flash backup block in the present embodiment, to solve the problem of Backup Data and raising renewal speed.Here, described NVRAM does not lose owing to having outage back data, the characteristics that power consumption is little, and just be widely used in digital camera, camera mobile phone, the PDA(Personal Digital Assistant), be used for the storage hardware parameter for software transfer; Or conduct storage card wherein is used for storing data.But, but do not occur as the back-up device of other memory devices with NVRAM.
Fig. 3 is the structural representation of embodiment one usefulness NVRAM as the memory storage of backup block.This memory storage comprises: Flash300 and NVRAM310; Comprise control module 301 and storage unit 302 among the Flash300.
Wherein, control module 301 is used to control and reads and the operation of write storage unit 302, when needs more during new data, control module 301 is operated all data backups of upgrading in the pairing storage unit 302 in the piece to NVRAM310 with current renewal, and backup is set is labeled as effectively; And after the data in eraseable memory unit 302 current renewal pieces,, write back in the current renewal piece and to upgrade current renewal piece the data that are not updated that back up among new data and the NVRAM310, and be provided with backup be labeled as invalid.
In the present embodiment more the idiographic flow of new data and prior art more the step 201 in the new technological process is identical to step 205, different is: carry out the operation of Backup Data by NVRAM, rather than carried out by the backup block among the Flash.Because as seen, in the flow process of new data more, reduce the number of times of once wiping the Flash backup block, promptly reduced the time of once wiping the Flash storage block, accelerated the more speed of new data of Flash, improve the read or write speed of Flash, prolonged the serviceable life of Flash simultaneously.
And, in the present embodiment, when system reset, power down or user terminating operation and when making the operation failure of current more new data by force, after system recovery restarts, judge that at first the backup that is provided with marks whether effectively, if effectively, then current renewal data manipulation failure, then after wiping the pairing renewal piece of current renewal data manipulation, the data in the backup block are write back the renewal piece; Otherwise, upgrade the data manipulation success or more the operation of new data also do not begin, do not carry out any operation.Make Flash File System after system exception is restarted or cut off the power supply, can effectively guarantee the integrality of file system, improved the disaster tolerance of system.
Embodiment two
Identical with embodiment one, embodiment two is provided with the backup block of NVRAM as Flash equally.The size of the storage space that should be provided with when specifically NVRAM is as the Flash backup block can be the size of a storage block in the NVRAM, also suitable size can be set according to the needs of practical application.
Because the write operation of NVRAM does not need to need to wipe earlier, write as Flash, therefore adopt in the present embodiment and directly in NVRAM, carry out the renewal of data according to new data, the data after will upgrading then write back in the renewal piece of storage unit.Like this, can avoid Flash to upgrade operation complexity as far as possible, improve the disaster tolerance of Flash File System.Make Flash File System after system exception is restarted or cut off the power supply, can effectively guarantee the integrality of file system.
The structural representation of embodiment two memory storages comprises as shown in Figure 4: Flash400 and NVRAM410 wherein comprise control module 401 and storage unit 402 among the Flash400.Wherein, control module 401 is used to control and reads and the operation of write storage unit 402, when needs more during new data, control module 401 is operated data backup in the renewal piece in the pairing storage unit 402 to NVRAM410 with current renewal, and backup is set is labeled as effectively; After directly in NVRAM410, carrying out the renewal of data according to new data, and in eraseable memory unit 402 behind the current renewal piece, the data after NVRAM410 upgraded write or storage unit 402 in the renewal piece, and be provided with backup be labeled as invalid.
More the idiographic flow of new data is as shown in Figure 5 among the embodiment two:
Step 501: when data need be upgraded, data backup in the pairing renewal piece was operated to NVRAM410 with current renewal in control module 401 control store unit 402.
Step 502: control module 401 keep among the NVRAM410 from upgrade the piece backup, do not need data updated, write NVRAM410 with being used for carrying out the new data that upgrades operation.
Step 503: control module 401 is provided with backup and is labeled as effectively.
Step 504: control module 401 is wiped current renewal and is operated pairing renewal piece.
Step 505: the data after the NVRAM410 renewal are write back in the current renewal piece again.
Step 506: control module 401 be provided with the backup be labeled as invalid.
In flow process shown in Figure 5, when system reset, power down or user terminating operation and when making the operation failure of current more new data by force, after system recovery restarts, judge that at first the backup that is provided with marks whether effectively, if effectively, though then current renewal data manipulation failure needs the new data of renewal successfully to write among the NVRAM410, then only need this moment to begin to carry out up to step 506 to finish the renewal operation from step 504; Otherwise, do not carry out any operation.
In flow process shown in Figure 5, also step 503 can be moved to before the step 502, the order of other steps and operation are all constant.At this moment, when system reset, power down or user terminating operation and when making the operation failure of current more new data by force, after system recovery is restarted, judge that at first the backup that is provided with marks whether effectively, if effectively, then the Backup Data among the NVRAM410 is write back in the pairing renewal piece of current more new data and get final product; When judging the backup marked invalid, then do not carry out any operation.
Also have another quick storage method in present embodiment memory storage as shown in Figure 4, promptly in flow process shown in Figure 5, step 502 is adjusted to after the step 504, the order of other steps and operation are all constant.At this moment, when system reset, power down or user terminating operation and when making the operation failure of current more new data by force, after system recovery restarts, judge that at first the backup that is provided with marks whether effectively, if effectively, then the Backup Data among the NVRAM is write back in the pairing renewal piece of current more new data, finish the function of backup; When judging the backup marked invalid, then do not carry out any operation.
In the cited embodiment of the present invention, description be the situation of making the Flash backup block with NVRAM, in fact the nonvolatile memory of all except that Flash can be as the backup block of Flash.Because nonvolatile memory can not exist Flash to wipe earlier situation about afterwards writing arbitrarily except that Flash, so all can reach the purpose of fast updating data with the backup block that they are Flash.Such nonvolatile memory is as electricallyerasable ROM (EEROM) (EEPROM), hard disk etc.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (6)
1, a kind of speed storage device, at least comprise flash memory, comprise control module and storage unit in the flash memory at least, the operation of reading and writing is carried out in control module control store unit, it is characterized in that this device further comprises: nonvolatile memory;
Described control module when being used for more new data, is operated all data backups of upgrading in the pairing storage unit in the piece to nonvolatile memory with current renewal, and backup is set is labeled as effectively; And after in eraseable memory unit, upgrading data in the piece, the data that are not updated that back up in new data and the nonvolatile memory are write back current renewal piece upgrading current renewal piece, and be provided with backup be labeled as invalid; Perhaps, directly in nonvolatile memory, carry out Data Update according to new data, the renewal piece in the eraseable memory unit, after the data after nonvolatile memory upgraded write back renewal piece in the storage unit, be provided with backup be labeled as invalid.
2, device according to claim 1 is characterized in that, described nonvolatile memory is: non-volatile RAM, electricallyerasable ROM (EEROM) or hard disk.
3, a kind of method of fast updating data is characterized in that, when being the flash memory for updating data of backup block with the nonvolatile memory, the backup mark is set, and carries out following steps:
A1, with all data backups in the current renewal operation institute corresponding renewal piece to nonvolatile memory; Backup is set is labeled as effectively, be used for the designation data backup effectively;
B1, wipe current renewal and operate pairing renewal piece, upgrade backed up data in the nonvolatile memory with new data, and the data in the nonvolatile memory after will upgrading write back current renewal piece; Backup is set is labeled as invalidly, be used for the designation data backup invalidation; Perhaps, upgrade backed up data in the nonvolatile memory, wipe current renewal and operate pairing renewal piece, the data after upgrading in the nonvolatile memory are write back current renewal piece with new data; Backup is set is labeled as invalidly, be used for the designation data backup invalidation.
4, method according to claim 3 is characterized in that, this method further comprises:
When system recovery is restarted, under backup mark effective situation with nonvolatile memory in backed up data write back the renewal piece.
5, a kind of method of fast updating data is characterized in that, when being the flash memory for updating data of backup block with the nonvolatile memory, the backup mark is set, and carries out following steps:
With all data backups in the current renewal operation institute corresponding renewal piece to nonvolatile memory;
Upgrade backed up data in the nonvolatile memory with new data; Backup is set is labeled as effectively, be used for the designation data backup effectively;
Wipe current renewal and operate pairing renewal piece; Data after upgrading in the nonvolatile memory are write back current renewal piece; Backup is set is labeled as invalidly, be used for the designation data backup invalidation.
6, method according to claim 5 is characterized in that, this method further comprises:
When system recovery is restarted, under the effective situation of backup mark, wipe current renewal and operate pairing renewal piece; Data after upgrading in the nonvolatile memory are write back current renewal piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100083832A CN100511166C (en) | 2006-02-21 | 2006-02-21 | High-speed storage device and method for high-speed updating data |
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| CNB2006100083832A CN100511166C (en) | 2006-02-21 | 2006-02-21 | High-speed storage device and method for high-speed updating data |
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| CN1811725A CN1811725A (en) | 2006-08-02 |
| CN100511166C true CN100511166C (en) | 2009-07-08 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251826B (en) * | 2007-02-27 | 2010-09-01 | 深圳市同洲电子股份有限公司 | Flash memory, method and apparatus for data management of flash memory |
| CN101571833B (en) * | 2008-04-29 | 2012-03-21 | 深圳市朗科科技股份有限公司 | Method and device for protecting storage medium |
| CN101819532B (en) * | 2010-03-16 | 2013-04-24 | 北京握奇数据系统有限公司 | Method and device for updating data |
| CN103778083B (en) * | 2012-10-18 | 2017-03-01 | 华邦电子股份有限公司 | Data memory device and non-volatility memorizer control method |
| TWI505090B (en) * | 2013-03-12 | 2015-10-21 | Macronix Int Co Ltd | Difference l2p method |
| US9465426B2 (en) | 2013-09-18 | 2016-10-11 | Huawei Technologies Co., Ltd. | Method for backing up data in a case of power failure of storage system, and storage system controller |
| CN103500131B (en) * | 2013-09-18 | 2015-09-09 | 华为技术有限公司 | A kind of storage system power failure data backup method and controller system memory |
| CN104239567B (en) * | 2014-09-28 | 2018-04-06 | 北京国双科技有限公司 | Dimension treating method and apparatus in data warehouse |
| CN105589767B (en) * | 2015-12-21 | 2018-07-31 | 北京时代民芯科技有限公司 | A kind of system power failure for NAND FLASH protects implementation method |
| CN106878399B (en) * | 2017-01-22 | 2021-05-07 | 新华三技术有限公司 | Data sending method and device |
| CN108172255A (en) * | 2018-01-15 | 2018-06-15 | 上海新储集成电路有限公司 | A kind of data-storage system |
| CN111445598A (en) * | 2020-01-09 | 2020-07-24 | 陕西华燕航空仪表有限公司 | Optical fiber attitude and heading reference system information processing method, device, equipment and storage medium |
| CN114442906A (en) * | 2020-11-02 | 2022-05-06 | 深圳Tcl新技术有限公司 | Data storage method, terminal and computer readable storage medium |
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2006
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
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Granted publication date: 20090708 Termination date: 20200221 |