CN101388255A - Solid hard disk using method and apparatus - Google Patents
Solid hard disk using method and apparatus Download PDFInfo
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- CN101388255A CN101388255A CNA2008101723159A CN200810172315A CN101388255A CN 101388255 A CN101388255 A CN 101388255A CN A2008101723159 A CNA2008101723159 A CN A2008101723159A CN 200810172315 A CN200810172315 A CN 200810172315A CN 101388255 A CN101388255 A CN 101388255A
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Abstract
The example of the invention discloses a use method of a solid harddisk and a device, wherein the method comprises the following steps: whether a reservation block which is used to replace a wrong block in a current storage unit of the solid harddisk is exhausted is detected, when the reservation block in the current storage unit is exhausted, other storage units of the solid harddisk obtain data blocks which are preliminarily reserved to replace the wrong blocks in the storage unit. The example of the invention replaces the wrong blocks in the solid harddisk through obtaining the data blocks which are preliminarily reserved, which leads the data blocks which are preliminarily reserved in a certain storage unit by the solid harddisk to be continuously used when using out, thereby prolonging the service life of the solid harddisk.
Description
Technical field
The embodiment of the invention relates to area information storage, relates in particular to a kind of using method and device of solid state hard disc.
Background technology
SSD (solid state disk, solid state hard disc) is made up of control module and memory module usually.Wherein, memory module adopts non-volatile Flash (flash memory) chip to constitute more.And SSD does not have mechanical rotation device, thereby SSD has the readwrite performance height, advantages such as shock resistance is strong, and the power supply expense is little, and be widely used in fields such as military affairs, vehicle-mounted, industry control, video monitoring, network monitoring, the network terminal, electric power, medical treatment, aviation, navigator.
Flash SSD can be divided into SLC (Single Level Cell, single-layer type) storage, with two kinds of MLC (MultiLevel Cell, multiple field) storages.All there is the erasing and writing life problem in two media, about 100,000 times of SLC, and about 10,000 times of MLC if the user can obtain accurately early warning information then can shift to an earlier date Backup Data before the SSD life termination, guarantees safety of data.
The storage organization of existing Flash chip is divided according to the mode of Layer (layer), Plane (face), and storage unit is Plane.For replacing the bad piece that occurs in the use, usually delimit certain zone among each Plane and be reserved as the reserved area, reserve part data block in advance, this part data that keep in advance can be used for replacing the bad piece that the SSD use produces soon, also can be used to store some redundant informations.The data block that keeps in advance that has some among each Plane can be replaced bad piece with the data block that keeps in advance when bad piece occurring among the current Plane, announce this SSD life termination after the data block that keeps in advance among a certain Plane uses.
Concrete, in the solid state hard disc data storage procedure, when bad piece appears in certain Plane that is used for storing data, can be according to the address information of the data block that keeps in advance directly with data storage in the data block that keeps in advance, realize replacing the purpose of bad piece.
In implementing process of the present invention, the inventor finds to exist at least in the prior art following shortcoming:
As long as will announce the Fixed disk life termination when data block that keeps in advance in certain page level storage unit has exhausted, thereby influence the serviceable life of solid state hard disc.
Summary of the invention
The embodiment of the invention provides a kind of using method and device of solid state hard disc, to realize can continuing to use this solid state hard disc when reserved block exhausts in certain storage unit.
The embodiment of the invention provides a kind of using method of solid state hard disc, may further comprise the steps:
Whether detect the data block that keeps in advance that is used to replace bad piece in the current memory cell of solid state hard disc exhausts;
When the data block that keeps in advance in the described current memory cell exhausts, obtain the data block that keeps in advance to other storage unit of described solid state hard disc and replace bad piece in the described storage unit.
The embodiment of the invention provides a kind of control device of solid state hard disc, comprising:
Whether the data block that keeps in advance that detecting unit, the current memory cell that is used for detecting solid state hard disc are used to replace bad piece exhausts;
Replace the unit, be used for when data block that described current memory cell keeps in advance exhausts, data block from reservation in advance to other storage unit of described solid state hard disc that obtain is replaced the bad piece in the described storage unit.
Compared with prior art, the embodiment of the invention has the following advantages at least:
By obtaining the bad piece in the data block replacement solid state hard disc that keeps in advance, the data block that solid state hard disc is kept in a certain storage unit in advance can continue when exhausting to use, thereby has prolonged the serviceable life of solid state hard disc.
Description of drawings
The schematic flow sheet of the method that Fig. 1 provides for the embodiment of the invention;
The schematic flow sheet of the method that Fig. 2 provides for another embodiment of the present invention;
The structural representation of Flash chip in the method that Fig. 3 provides for the embodiment of the invention;
The structural representation of the device that Fig. 4 provides for the embodiment of the invention;
The structural representation of the device that Fig. 5 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further introduced.
The embodiment of the invention provides a kind of using method of solid state hard disc, as shown in Figure 1, may further comprise the steps:
Whether step s101 detects the data block that keeps in advance that is used to replace bad piece in the current memory cell of solid state hard disc and exhausts;
Step s102 when the data block that keeps in advance in the current memory cell exhausts, obtains the data block that keeps in advance to other storage unit of solid state hard disc and replaces bad piece in the storage unit.
By the method that adopts the embodiment of the invention to provide, obtain the bad piece in the data block replacement solid state hard disc that keeps in advance, the data block that solid state hard disc is kept in a certain storage unit in advance can continue when exhausting to use, thereby has prolonged the serviceable life of solid state hard disc.
Below in conjunction with concrete application scenarios the embodiment of the invention is further introduced.Wherein, the storage organization of solid state hard disc is an example with the Flash chip structure, and storage unit is an example with Plane, Layer, and the data block of Bao Liuing abbreviates reserved block as in advance.
The embodiment of the invention provides a kind of using method of solid state hard disc, as shown in Figure 2, may further comprise the steps:
Step s201 when bad piece occurring among a certain Plane of solid state hard disc, utilizes the data block that keeps in advance among this Plane to replace the bad piece that occurs.
As shown in Figure 3, the storage organization of Flash chip is divided according to the mode of Layer, Plane, and storage unit is Plane.For replacing the bad piece that occurs in the use, mark certain zone among each Plane and be reserved as the reserved area, reserve part data block in advance, this part data block that keeps in advance can be called reserved block, and reserved block can be used for replacing the bad piece that solid state hard disc occurs.The reserved block that has some among each Plane can be replaced bad piece with this reserved block when bad piece occurring among the current Plane, make solid state hard disc can continue to use.
Step s202 when certain Plane reserved block exhausts, if still have available reserved block among other Plane under the same Layer, then directly obtains the reserved block among this other Plane.
When certain Plane reserved block exhausts, can travel through the reserved block among other Plane, if this reserved block is not used, then obtain this reserved block; Also can set in advance statistical table and be used for adding up the reserved block information among the Plane under each Layer of Flash chip, when certain Plane reserved block exhausts, can obtain reserved block according to the reserved block information that is not used among other Plane under this Plane place Layer that adds up in this statistical table.
Step s203 when the reserved block among other Plane under the same Layer exhausts, then obtains the reserved block under other Layer.
The solid state storage unit that provides in the embodiment of the invention is a two-stage, i.e. Plane and Layer; When the storage unit of solid state hard disc is more senior in addition, then obtain reserved block to more higher leveled storage unit successively, the reserved block in solid state hard disc in all storage unit exhausts.
The method of obtaining reserved block from other Plane can set in advance, and for example, can be set to adopt the mode of traversal to obtain reserved block from other Plane.Also can set in advance in the statistical table statistics Flash chip reserved block information among the Plane under each Layer, obtain reserved block under the corresponding Layer according to the statistical information of this statistical table.
Step s204 sends early warning signal when a certain Plane brings into use another Plane reserved block.
Solid state hard disc is using reserved block to replace in the process of bad piece, and the Plane that can set in advance bad piece of monitoring appearance gets access to the rank of other storage unit at reserved block place; Can send different early warning signals according to other difference of other memory cell level.When using up, the reserved block in the solid state hard disc sends the life termination prompting.
The mode of sending of this early warning signal can have multiple, for example with sound and light signal as early warning signal.Acousto-optic device is linked to each other with control module in the solid state hard disc, switching mode is set.Reserved block exhausts in a certain Plane in this solid state hard disc, and when getting access to the reserved block in other storage unit, control module is sent sound and light signal according to the switching mode guide sound electro-optical device that is provided with.
By the method that adopts the embodiment of the invention to provide, obtain the bad piece in the reserved block replacement solid state hard disc, make this hard disk when the reserved block of a certain storage unit exhausts, can continue to use, prolonged the serviceable life of solid state hard disc.
The embodiment of the invention provides a kind of control device of solid state hard disc, as shown in Figure 4, comprising:
Whether the data block that keeps in advance that detecting unit 41, the current memory cell that is used for detecting solid state hard disc are used to replace bad piece exhausts;
Replace unit 42, be used for when detecting unit 41 detects data block that current memory cell keeps in advance and exhausts, obtain bad piece in the data block replacement storage unit of reservation in advance to other storage unit of solid state hard disc.
The control device of the solid state hard disc that further embodiment of this invention provides as shown in Figure 5, also comprises:
Above-mentioned replacement unit 42 comprises:
First obtains subelement 421, is used for obtaining the data block that keeps in advance to other storage unit of peer;
Second obtains subelement 422, is used for obtaining to higher leveled storage unit when data block that all at the same level storage unit keep in advance exhausts;
The 3rd obtains subelement 423, is used for obtaining to more higher leveled storage unit successively when all data blocks that keep in advance of higher leveled storage unit exhaust, and the data block that keeps in advance in other storage unit of all grades in solid state hard disc exhausts.
By the device that adopts the embodiment of the invention to provide, obtain the bad piece in the reserved block replacement solid state hard disc, make this hard disk when the reserved block of a certain storage unit exhausts, can continue to use, prolonged the serviceable life of solid state hard disc.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of using method of solid state hard disc is characterized in that, may further comprise the steps:
Whether detect the data block that keeps in advance that is used to replace bad piece in the current memory cell of solid state hard disc exhausts;
When the data block that keeps in advance in the described current memory cell exhausts, obtain the data block that keeps in advance to other storage unit of described solid state hard disc and replace bad piece in the described storage unit.
2, the method for claim 1 is characterized in that, described other storage unit to described solid state hard disc is obtained the data block that keeps in advance and comprised:
Obtain the data block that keeps in advance to other storage unit of peer;
When the data block that keeps in advance in all storage unit of described peer exhausts, obtain to higher leveled storage unit;
When all data blocks that keep in advance exhaust in the described higher leveled storage unit, to obtain to more higher leveled storage unit successively, the data block that keeps in advance in all storage unit in described solid state hard disc exhausts.
3, the method for claim 1 is characterized in that, described other storage unit to described solid state hard disc is obtained the data block that keeps in advance and comprised:
Travel through the data block that keeps in advance in described other storage unit,, then obtain the described data block that keeps in advance if the data block that keeps in advance in described other storage unit is not used; Perhaps
Set in advance the statistical table of the use information that is used for adding up the data block that each storage unit keeps in advance in the described solid state hard disc, obtain the data block of reservation in advance that is not used according to the statistics of described statistical table.
4, the method for claim 1 is characterized in that, this method also comprises:
When obtaining the data block that keeps in advance from described other storage unit, send early warning signal.
5, method as claimed in claim 4 is characterized in that, the described early warning signal that sends comprises:
The rank of described other storage unit of monitoring;
Send different early warning signals according to described other difference of level.
As each described method of claim 1-5, it is characterized in that 6, described current memory cell is specially page or leaf level storage unit.
7, a kind of control device of solid state hard disc is characterized in that, comprising:
Whether the data block that keeps in advance that detecting unit, the current memory cell that is used for detecting solid state hard disc are used to replace bad piece exhausts;
Replace the unit, be used for when described detecting unit detects data block that current memory cell keeps in advance and exhausts, data block from reservation in advance to other storage unit of described solid state hard disc that obtain is replaced the bad piece in the described storage unit.
8, control device as claimed in claim 7 is characterized in that, described replacement unit comprises:
First obtains subelement, is used for obtaining the data block that keeps in advance to other storage unit of peer;
Second obtains subelement, when being used for data block that all storage unit when described peer keep in advance and exhausting, obtains to higher leveled storage unit;
The 3rd obtains subelement, is used for obtaining to more higher leveled storage unit successively when all data blocks that keep in advance of described higher leveled storage unit exhaust, and the data block that keeps in advance in all storage unit in described solid state hard disc exhausts.
9, control device as claimed in claim 7 is characterized in that, also comprises:
Prewarning unit is used for sending early warning signal when obtaining the data block that keeps in advance from described other storage unit.
10, control device as claimed in claim 9 is characterized in that, described prewarning unit comprises:
Monitor subelement, be used to monitor the rank of described other storage unit;
The early warning subelement is used for sending different early warning signals according to the different stage that described monitoring subelement monitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101723159A CN101388255A (en) | 2008-10-31 | 2008-10-31 | Solid hard disk using method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101723159A CN101388255A (en) | 2008-10-31 | 2008-10-31 | Solid hard disk using method and apparatus |
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| CN101388255A true CN101388255A (en) | 2009-03-18 |
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| CNA2008101723159A Pending CN101388255A (en) | 2008-10-31 | 2008-10-31 | Solid hard disk using method and apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301339A (en) * | 2009-04-21 | 2011-12-28 | 国际商业机器公司 | Apparatus and method for controlling a solid state disk (SSD) device |
| CN103309816A (en) * | 2013-05-31 | 2013-09-18 | 苏州亮智科技有限公司 | Solid hard disk, electronic device with solid hard disk and dynamic capacity control method of solid hard disk |
| CN104375953A (en) * | 2013-08-15 | 2015-02-25 | 联想(北京)有限公司 | Equipment control method and electronic equipment |
| CN105355233A (en) * | 2015-11-23 | 2016-02-24 | 清华大学 | Efficient data writing method based on PCM (Phase Change Memory) reverse error correction algorithm |
| CN106486170A (en) * | 2016-09-06 | 2017-03-08 | 深圳忆数存储技术有限公司 | The potential bad block localization method of solid state hard disc and device |
-
2008
- 2008-10-31 CN CNA2008101723159A patent/CN101388255A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301339A (en) * | 2009-04-21 | 2011-12-28 | 国际商业机器公司 | Apparatus and method for controlling a solid state disk (SSD) device |
| US8775864B2 (en) | 2009-04-21 | 2014-07-08 | International Business Machines Corporation | Controlling a solid state disk (SSD) device |
| US8793530B2 (en) | 2009-04-21 | 2014-07-29 | International Business Machines Corporation | Controlling a solid state disk (SSD) device |
| CN102301339B (en) * | 2009-04-21 | 2017-08-25 | 国际商业机器公司 | Apparatus and method for controlling solid-state disk (SSD) equipment |
| CN103309816A (en) * | 2013-05-31 | 2013-09-18 | 苏州亮智科技有限公司 | Solid hard disk, electronic device with solid hard disk and dynamic capacity control method of solid hard disk |
| CN104375953A (en) * | 2013-08-15 | 2015-02-25 | 联想(北京)有限公司 | Equipment control method and electronic equipment |
| CN105355233A (en) * | 2015-11-23 | 2016-02-24 | 清华大学 | Efficient data writing method based on PCM (Phase Change Memory) reverse error correction algorithm |
| CN105355233B (en) * | 2015-11-23 | 2018-04-10 | 清华大学 | Efficient data wiring method based on PCM reversion error correction algorithms |
| CN106486170A (en) * | 2016-09-06 | 2017-03-08 | 深圳忆数存储技术有限公司 | The potential bad block localization method of solid state hard disc and device |
| CN106486170B (en) * | 2016-09-06 | 2019-11-26 | 深圳忆数存储技术有限公司 | The potential bad block localization method and device of solid state hard disk |
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Open date: 20090318 |