CN102929792A - Data movement method and system and storage device and host machine - Google Patents
Data movement method and system and storage device and host machine Download PDFInfo
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- CN102929792A CN102929792A CN2012104502614A CN201210450261A CN102929792A CN 102929792 A CN102929792 A CN 102929792A CN 2012104502614 A CN2012104502614 A CN 2012104502614A CN 201210450261 A CN201210450261 A CN 201210450261A CN 102929792 A CN102929792 A CN 102929792A
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Abstract
The invention provides a data movement method and system, a storage device and a host machine. The data movement method comprises receiving move command information sent by the host machine, wherein the move command information comprises a source logical block address, a target logical block address and to-be-moved data length; copying the data of the data length in an area where an initial address is the source logical block address to the area where an initial address is the target logical block address; marking the data of the data length in an area where the initial address is the target logical block address to be invalid; and therefore the process that the data is moved from the area where the initial address is the source logical block address to the area where the initial address is the target logical block address is achieved. Due to the fact that the host machine just sends the move command information once, only once interaction is carried out between the host machine and the storage device, and moving efficiency of the data in the storage device for the host machine is improved.
Description
Technical field
The present invention relates to computer technology, relate in particular to data movement method and system, memory device and main frame.
Background technology
When the host access memory device, data in the memory device may be moved to another zone from a zone, for example be about to: the zone from LBA (Logical Block Addressing) A of the data of length L is moved to the zone of LBA (Logical Block Addressing) B, prior art is mainly by small computer system interface (SmallComputer System Interface; Be designated hereinafter simply as: SCSI) agreement or hi-tech configuration (Advanced Technology Attachment; Be designated hereinafter simply as: ATA) agreement realizes.
Wherein, the process that realizes by the SCSI agreement is: main frame sends the copy order to memory device, memory device in inside with the data copy of LBA (Logical Block Addressing) A, the length L zone to LBA (Logical Block Addressing) B, host waits memory device copy is finished backward equipment and is sent the unmap order, and memory device is invalid with the Data Labels of LBA (Logical Block Addressing) A, length L again.
The process that realizes by the ATA agreement is: main frame is at the buffer zone of local allocated length L, with read command the data of memory device LBA (Logical Block Addressing) A, length L are read in the buffer zone again, then the zone of memory device LBA (Logical Block Addressing) B write the data in the buffer zone with write order by main frame, buffer release district again, last main frame is invalid with TRIM order notice memory device with the Data Labels of initial logic A, length L.
In realizing process of the present invention, the inventor finds, if realize data mobile based on the SCSI agreement, then main frame need and memory device between carry out twice mutual; If realize data mobile based on the ATA agreement, then carry out three times alternately between main frame needs and the memory device; Thereby cause main frame to the mobile inefficiency of data in the memory device.
Summary of the invention
The invention provides a kind of data movement method and system, memory device and main frame, with so that main frame only sends a movement directive message to memory device, can realize data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
First aspect, the embodiment of the invention provide a kind of data movement method, comprising:
The movement directive message that Receiving Host sends, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved;
According to described movement directive message, be that the data copy of data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address with start address;
The data markers that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is invalid.
In conjunction with first aspect, in the possible implementation of the first of first aspect, when the mapping table of LBA (Logical Block Addressing) and physical block address was the static mappings table, described was that data copy to the start address of data length described in the zone of described source LBA (Logical Block Addressing) is that the zone of described purpose LBA (Logical Block Addressing) comprises with start address:
According to the static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the purpose physical block address of described purpose LBA (Logical Block Addressing) mapping;
In being the zone of described source physical block address, start address reads the data of described data length;
The data of the described data length that reads are write to the zone that start address is described purpose physical block address.
In conjunction with first aspect, in the possible implementation of the second of first aspect, when the mapping table of LBA (Logical Block Addressing) and physical block address was the dynamic mapping table, described was that data copy to the start address of data length described in the zone of described source LBA (Logical Block Addressing) is that the zone of described purpose LBA (Logical Block Addressing) comprises with start address:
According to the dynamic mapping table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping;
Set up the mapping relations of described purpose LBA (Logical Block Addressing) and described source physical block address.
In conjunction with the first of first aspect possible implementation or the possible implementation of the second, in the third possible implementation of first aspect, described is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid comprising with start address:
Described main frame described source LBA (Logical Block Addressing) added an invalid flag, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
In conjunction with the possible implementation of the second of first aspect, in the 4th kind of possible implementation of first aspect, described is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid comprising with start address:
According to described source LBA (Logical Block Addressing) and described dynamic mapping table, described main frame described source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
Second aspect, the embodiment of the invention also provide a kind of data movement method, comprising:
Send movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, the data copy that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address, and is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid with start address.
The third aspect, the embodiment of the invention provide a kind of memory device, comprising:
Receiving element is used for the movement directive message that Receiving Host sends, and described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved;
Mobile unit is used for according to described movement directive message, is that the data copy of data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address with start address;
Indexing unit, being used for start address is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid.
In conjunction with the third aspect, in the possible implementation of the first of the third aspect, described mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table, according to the static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the purpose physical block address of described purpose LBA (Logical Block Addressing) mapping; In being the zone of described source physical block address, start address reads the data of described data length; The data of the described data length that reads are write to the zone that start address is described purpose physical block address.
In conjunction with the third aspect, in the possible implementation of the second of the third aspect, described mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table, according to the dynamic mapping table, obtains the source physical block address of described source LBA (Logical Block Addressing) mapping; Set up the mapping relations of described purpose LBA (Logical Block Addressing) and described source physical block address.
In conjunction with the first of the third aspect possible implementation or the possible implementation of the second, in the third possible implementation of the third aspect, described indexing unit specifically is used for described source LBA (Logical Block Addressing) is added an invalid flag, so that described main frame can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
In conjunction with the possible implementation of the second of the third aspect, in the 4th kind of possible implementation of the third aspect, described indexing unit specifically is used for according to described source LBA (Logical Block Addressing) and described dynamic mapping table, described main frame described source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
Fourth aspect, the embodiment of the invention provide a kind of main frame, comprising:
Transmitting element, be used for sending movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, the data copy that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address, and is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid with start address.
The 5th aspect, the embodiment of the invention provide a kind of data mobile system, comprise aforesaid memory device, and aforesaid main frame, and described memory device is connected with described main-machine communication.
The data movement method that the embodiment of the invention provides and system, memory device and main frame, by the movement directive message that the memory device Receiving Host sends, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; According to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address; Memory device is that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of data movement method embodiment one of the present invention;
Fig. 2 is the process flow diagram of data movement method embodiment two of the present invention;
Fig. 3 is the process flow diagram of data movement method embodiment three of the present invention;
Fig. 4 is the process flow diagram of data movement method embodiment four of the present invention;
Fig. 5 is the schematic diagram of application scenarios embodiment one of the present invention;
Fig. 6 is the structural representation of memory device embodiment one of the present invention;
Fig. 7 is the structural representation of host implementation example one of the present invention;
Fig. 8 is the structural representation of data mobile of the present invention system;
Fig. 9 is the structural representation of computing node embodiment one provided by the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the process flow diagram of data movement method embodiment one of the present invention, and as shown in Figure 1, the method for the present embodiment can comprise:
The movement directive message that step 101, memory device Receiving Host send, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved.
In the present embodiment, in the interaction protocol of main frame and memory device, introduce special " data mobile " order, so that can be with the intention of the data mobile clear and definite notice memory device of main frame; When the host access memory device, in the time of data in the memory device need to being moved to another zone from a zone, then main frame sends movement directive message to memory device, correspondingly, this movement directive message that the memory device Receiving Host sends, wherein, comprise source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved in this movement directive message.
After memory device receives the movement directive message of main frame transmission, according to movement directive message, obtaining source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved in the movement directive message, then is that the data copy of data length to be moved in the zone of source LBA (Logical Block Addressing) is in the zone of purpose LBA (Logical Block Addressing) to start address with start address.
Memory device will be after will being copied in the zone that start address is the purpose LBA (Logical Block Addressing) until Mobile data from start address is the zone of source LBA (Logical Block Addressing), according to movement directive message, be that data length data markers to be moved in the zone of source LBA (Logical Block Addressing) is invalid again with start address, so that main frame can not be the data that the source LBA (Logical Block Addressing) is obtained this data length to be moved by start address again, when needs obtain the data of this data length to be moved, be that purpose LBA (Logical Block Addressing) obtain by initial logical address and make main frame; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
The data movement method that the embodiment of the invention one provides, the movement directive message that memory device sends by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; According to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address; Be that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Fig. 2 is the flow process of data movement method embodiment two of the present invention, and as shown in Figure 2, the method for the present embodiment can comprise:
The movement directive message that step 201, memory device Receiving Host send, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved.
Particularly, on memory device, LBA (Logical Block Addressing) and physical block address have certain mapping relations, be that memory device can be safeguarded a mapping table, wherein, preserve the current mapping relations of LBA (Logical Block Addressing) and physical block address in this mapping table, this mapping table comprises static mappings table and dynamic mapping table.The LBA (Logical Block Addressing) of preserving in this static mappings table and the mapping relations of physical block address are fixed, and can not change when memory device moves.And the mapping relations of the LBA (Logical Block Addressing) of preserving in the dynamic mapping table and physical block address are unfixed, and when memory device moved, the mapping relations of LBA (Logical Block Addressing) and physical block address can change.
When the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table, memory device is according to movement directive message, obtain source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved in the movement directive message, then the physical block address that obtains source LBA (Logical Block Addressing) mapping from the static mappings table is the source physical block address, and the physical block address that also obtains the mapping of purpose LBA (Logical Block Addressing) from the static mappings table is the purpose physical block address.
Particularly, it is the zone of source physical block address that memory device finds start address according to the source physical block address, and therefrom reads the data of data length to be moved.
The data of the above-mentioned data length that step 204, memory device will read write to the zone that start address is the purpose physical block address.
Particularly, memory device reads after the data of the data length that moves, and the data with the data length to be moved that reads write to the zone that start address is the purpose physical block address again.
Memory device is will be after Mobile data writes to the zone that start address is the purpose physical block address, according to movement directive message, again the source LBA (Logical Block Addressing) is added an invalid flag, take realize memory device with the data markers of start address data length to be moved in the zone of source LBA (Logical Block Addressing) as invalid.Because the source LBA (Logical Block Addressing) has been added invalid flag, so main frame can only get access to invalid data by start address for this source LBA (Logical Block Addressing), namely can not obtain the data of this data length to be moved for this source LBA (Logical Block Addressing) by start address, be that purpose LBA (Logical Block Addressing) obtain by start address but make main frame when needs obtain the data of this data length to be moved; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
Need to prove, realizing data mobile based on the ATA agreement, the data movement method that adopts the embodiment of the invention to provide, main frame need not to distribute and the buffer release district, also need not the transmission of data between main frame and memory device.
The data movement method that the embodiment of the invention two provides, the movement directive message that memory device sends by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address was the static mappings table, memory device obtained the source physical block address of source LBA (Logical Block Addressing) mapping and the purpose physical block address of purpose LBA (Logical Block Addressing) mapping according to movement directive message and static mappings table; In being the zone of source physical block address, start address reads the data of above-mentioned data length; The data of the above-mentioned data length that reads are write to the zone that start address is the purpose physical block address; Main frame the source LBA (Logical Block Addressing) added an invalid flag, so that can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Fig. 3 is the process flow diagram of data movement method embodiment three of the present invention, and as shown in Figure 3, the method for the present embodiment can comprise:
The movement directive message that step 301, memory device Receiving Host send, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved.
Step 302, when the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table, memory device is according to the dynamic mapping table, obtains the source physical block address of source LBA (Logical Block Addressing) mapping.
Particularly, on memory device, LBA (Logical Block Addressing) and physical block address have certain mapping relations, be that memory device can be safeguarded a mapping table, wherein, preserve the current mapping relations of LBA (Logical Block Addressing) and physical block address in this mapping table, this mapping table comprises static mappings table and dynamic mapping table.The LBA (Logical Block Addressing) of preserving in this static mappings table and the mapping relations of physical block address are fixed, and can not change when memory device moves.And the mapping relations of the LBA (Logical Block Addressing) of preserving in the dynamic mapping table and physical block address are unfixed, and when memory device moved, the mapping relations of LBA (Logical Block Addressing) and physical block address can change.
When the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table, memory device is according to movement directive message, obtain source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved in the movement directive message, then the physical block address that obtains source LBA (Logical Block Addressing) mapping from dynamic mapping table is the source physical block address, and the physical block address that also obtains the mapping of purpose LBA (Logical Block Addressing) from dynamic mapping table is the purpose physical block address.
Step 303, memory device are set up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address.
Particularly, the mapping relations of purpose LBA (Logical Block Addressing) and purpose physical block address are set up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address again, and are kept in this dynamic mapping table in the memory device releasing dynamic mapping table.
Step 304, memory device are that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address.
In a kind of feasible implementation, step 304 can be added an invalid flag with the source LBA (Logical Block Addressing) for: memory device, so that main frame can not obtain the data that start address is data length to be moved in the zone of source physical block address according to the source LBA (Logical Block Addressing); Be that memory device does not change the mapping relations between source LBA (Logical Block Addressing) and the source physical block address, but the source LBA (Logical Block Addressing) is added an invalid flag, take realize memory device with the data markers of start address data length to be moved in the zone of source LBA (Logical Block Addressing) as invalid.Because the source LBA (Logical Block Addressing) has been added invalid flag, so main frame can only get access to invalid data by the address of having begun for this source LBA (Logical Block Addressing), namely can not obtain the data of this data length to be moved for this source LBA (Logical Block Addressing) by start address, be that purpose LBA (Logical Block Addressing) obtain by start address but make main frame when needs obtain the data of this data length to be moved; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
In the feasible implementation of another kind, step 304 can for: memory device is according to source LBA (Logical Block Addressing) and dynamic mapping table, main frame the source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address.Particularly, the mapping relations of source LBA (Logical Block Addressing) and source physical block address in the memory device releasing dynamic mapping table, set up again the mapping relations of source LBA (Logical Block Addressing) and invalid physical block address, and be kept in this dynamic mapping table, so main frame is that the source LBA (Logical Block Addressing) is when obtaining data by start address, can only get access to the data in the zone of invalid physical block address of source LBA (Logical Block Addressing) mapping, and invalid physical block address is an invalid address, so main frame is to be that the source LBA (Logical Block Addressing) is obtained data by start address, when needs obtain the data of this data length to be moved, be that purpose LBA (Logical Block Addressing) obtain by start address but make main frame; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
Need to prove, when realizing data mobile based on the ATA agreement, the data movement method that adopts the embodiment of the invention to provide, main frame need not to distribute and the buffer release district, also need not the transmission of data between main frame and memory device.
The data movement method that the embodiment of the invention three provides, the movement directive message that memory device sends by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address was the dynamic mapping table, memory device obtained the source physical block address of source LBA (Logical Block Addressing) mapping according to the dynamic mapping table; Set up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address; Be that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.Further, memory device is realized data mobile by revising mapping table, so that the data mobile operating process is simple, reliable, has further improved the efficient of data mobile, simultaneously, does not need data are carried out read-write operation, has reduced the loss of memory device.
Fig. 4 is the process flow diagram of data movement method embodiment four of the present invention, and as shown in Figure 4, the method for the present embodiment can comprise:
In the present embodiment, in the interaction protocol of main frame and memory device, introduce special " data mobile " order, so that can be with the intention of the data mobile clear and definite notice memory device of main frame; When the host access memory device, need to be when to move to start address be purpose LBA (Logical Block Addressing) regional the zone of source LBA (Logical Block Addressing) from start address with the data in the memory device, then main frame sends movement directive message to memory device, wherein, comprise source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved in this movement directive message; Correspondingly, this movement directive message that the memory device Receiving Host sends, according to movement directive message, be that the data copy of data length to be moved in the zone of source LBA (Logical Block Addressing) is the zone of purpose LBA (Logical Block Addressing) to start address with start address, and be that the data markers of data length to be moved in the zone of source LBA (Logical Block Addressing) is invalid with start address, so that main frame can not be the data that the source LBA (Logical Block Addressing) is obtained this data length to be moved by start address again, when needs obtain the data of this data length to be moved, be that purpose LBA (Logical Block Addressing) obtain by initial logical address but make main frame; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).
The data movement method that the embodiment of the invention four provides, send movement directive message by main frame to memory device, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address, and be that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Fig. 1 of the present invention ~ the method that provides embodiment illustrated in fig. 4 can be used for application scenarios shown in Figure 5, and Fig. 5 is the schematic diagram of application scenarios embodiment one of the present invention, comprises memory device and main frame in the application scenarios shown in Figure 5.
Particularly, main frame sends movement directive message to memory device, and this movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved.After the movement directive message that the memory device Receiving Host sends, according to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address.Then this memory device is that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Need to prove, on the basis of the various embodiments described above, further, in a kind of feasible implementation, memory device finish start address be the data markers of data length to be moved in the zone of source LBA (Logical Block Addressing) be invalid after, initiatively send the data mobile success response to main frame, after main frame receives this data mobile success response, can know that the data mobile process is successfully completed; Perhaps, behind the data mobile procedure failure, memory device initiatively sends the data mobile failure response to main frame, carries failure cause in this data mobile failure response in the memory device, after main frame receives this data mobile failure response, carry out corresponding operation according to failure cause.
In the feasible implementation of another kind, main frame is sending movement directive message, the rear active of waiting for a period of time sends querying command message to memory device, memory device receives this querying command message, send inquiry response to main frame, this inquiry response is in order to carry out data mobile or data mobile success or data mobile failure to the main frame feedback.If the data mobile process in the memory device is not also finished, then memory device responds to main frame transmission data mobile, and main frame receives this data mobile and responds, and the rear active of waiting for a period of time again sends querying command message to memory device; If the data mobile process is successfully completed in the memory device, then memory device sends the data mobile success response to main frame, after main frame receives this data mobile success response, can know that the data mobile process is successfully completed; If data mobile procedure failure in the memory device, then memory device sends the data mobile failure response to main frame, carry failure cause in this data mobile failure response, after main frame receives this data mobile failure response, carry out corresponding operation according to failure cause, one of ordinary skill in the art will appreciate that this process is prior art, the present invention does not repeat them here.
Fig. 6 is the structural representation of memory device embodiment one of the present invention, as shown in Figure 6, the memory device of the present embodiment can comprise: receiving element 11, mobile unit 12 and indexing unit 13, wherein, receiving element 11 is used for the movement directive message that Receiving Host sends, and movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; Mobile unit 12 is used for according to movement directive message, is that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address; Indexing unit 13 is invalid for the data markers that is the above-mentioned data length in zone of source LBA (Logical Block Addressing) with start address.
The memory device of the present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 1, and it realizes that principle is similar, can referring to the record of above-described embodiment, repeat no more in detail herein.
The memory device that the embodiment of the invention one provides, by the movement directive message that the receiving element Receiving Host sends, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; Mobile unit is according to movement directive message, is that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address; Indexing unit is that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address, thereby has realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
In memory device embodiment two of the present invention, on the basis of memory device structure shown in Figure 6, above-mentioned 12 concrete being used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table of mobile unit, according to the static mappings table, obtain the source physical block address of source LBA (Logical Block Addressing) mapping and the purpose physical block address of purpose LBA (Logical Block Addressing) mapping; In being the zone of source physical block address, start address reads the data of above-mentioned data length; The data of the above-mentioned data length that reads are write to the zone that start address is the purpose physical block address.Above-mentioned 13 concrete being used for invalid flag of source LBA (Logical Block Addressing) interpolation, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address of indexing unit.
The memory device of the present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 2, and it realizes that principle is similar, can referring to the record of above-described embodiment, repeat no more in detail herein.
The memory device that the embodiment of the invention two provides, by the movement directive message that the receiving element Receiving Host sends, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table, mobile unit is according to the static mappings table, obtain the source physical block address of source LBA (Logical Block Addressing) mapping and the purpose physical block address of purpose LBA (Logical Block Addressing) mapping, in start address is the zone of source physical block address, read the data of above-mentioned data length, the data of the above-mentioned data length that reads are write to the zone that start address is the purpose physical block address; Indexing unit adds an invalid flag with the source LBA (Logical Block Addressing), so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
In memory device embodiment three of the present invention, on the basis of memory device structure shown in Figure 6, above-mentioned 12 concrete being used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table of mobile unit, according to the dynamic mapping table, obtain the source physical block address of source LBA (Logical Block Addressing) mapping; Set up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address.Above-mentioned 13 concrete being used for invalid flag of source LBA (Logical Block Addressing) interpolation, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address of indexing unit; Perhaps, concrete being used for according to source LBA (Logical Block Addressing) and dynamic mapping table, the source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address.
The memory device of the present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 3, and it realizes that principle is similar, can referring to the record of above-described embodiment, repeat no more in detail herein.
The memory device that the embodiment of the invention three provides, by the movement directive message that the receiving element Receiving Host sends, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address was the dynamic mapping table, mobile unit obtained the source physical block address of source LBA (Logical Block Addressing) mapping according to the dynamic mapping table, sets up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address; Indexing unit adds an invalid flag with the source LBA (Logical Block Addressing), so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address; Perhaps, indexing unit is mapped to invalid physical block address according to source LBA (Logical Block Addressing) and dynamic mapping table with the source LBA (Logical Block Addressing), so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.Further, memory device is realized data mobile by revising mapping table, so that the data mobile operating process is simple, reliable, has further improved the efficient of data mobile, simultaneously, does not need data are carried out read-write operation, has reduced the loss of memory device.
Fig. 7 is the structural representation of host implementation example one of the present invention, as shown in Figure 7, the main frame of the present embodiment can comprise: transmitting element 21, wherein, transmitting element 21 is used for sending movement directive message to memory device, movement directive message comprises the source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address, and be that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address.
The main frame of the present embodiment can be for the technical scheme of carrying out embodiment of the method shown in Figure 4, and it realizes that principle is similar, can referring to the record of above-described embodiment, repeat no more in detail herein.
The main frame that the embodiment of the invention one provides, send movement directive message by transmitting element to memory device, movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address, and be that the data markers of above-mentioned data length is invalid in the zone of source LBA (Logical Block Addressing) with start address; Thereby realized data are moved to the process that start address is the zone of purpose LBA (Logical Block Addressing) from start address is the zone of source LBA (Logical Block Addressing).Because main frame only sends a movement directive message to memory device, thus main frame only needs and memory device between carry out once alternately, improved the efficient that main frame moves the data in the memory device.
Fig. 8 is the structural representation of data mobile of the present invention system, as shown in Figure 8, the system of the present embodiment can comprise: memory device 10 and main frame 20, solid line between memory device 10 and the main frame 20 represents the communication connection between memory device 10 and the main frame 20, wherein, memory device 10 can adopt the structure of arbitrary device embodiment among the memory device embodiment one to embodiment three of the present invention, it accordingly, the technical scheme of either method embodiment in can execution graph 1 ~ Fig. 3, its realization principle and technique effect are similar, repeat no more herein.Main frame 20 can adopt among Fig. 7 the structure of device embodiment, its accordingly, can execution graph 4 in the technical scheme of embodiment of the method, it realizes that principle and technique effect are similar, repeats no more herein.
Fig. 9 is the structural representation of computing node embodiment one provided by the invention, and as shown in Figure 9, the computing node 700 that the present embodiment provides can be the host server that comprises computing power, or personal computer (Personal Computer; Hereinafter to be referred as: PC), or portable portable computer or terminal etc., the present invention does not limit at this, and the specific embodiment of the invention is not done restriction to the specific implementation of computing node 700.Computing node 700 can comprise: processor (Processor) 710, communication interface (Communications Interface) 720, storer (memory) 730, communication bus 740, wherein, processor 710, communication interface 720 and storer 730 are finished communication between each equipment by communication bus 740, processor 710 is used for communicating by letter with network element 750, and network element 750 can or be shared storage etc. for the Virtual Machine Manager center.
Processor 710 is used for executive routine 732, and particularly, program 732 can comprise program code, and described program code comprises computer-managed instruction.Wherein, processor 710 can be a central processing unit (Central Processing Unit; Be designated hereinafter simply as CPU), or specific integrated circuit ASIC(Application Specific Integrated Circuit; Hereinafter to be referred as: ASIC), or be configured to implement one or more integrated circuit of the embodiment of the invention.Program 732 in the present embodiment specifically can be used for:
Receiving element is used for the movement directive message that Receiving Host sends, and movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved.
Mobile unit is used for according to movement directive message, is that the data copy of above-mentioned data length is the zone of purpose LBA (Logical Block Addressing) to start address in the zone of source LBA (Logical Block Addressing) with start address,
Indexing unit is invalid for the data markers that is the above-mentioned data length in zone of source LBA (Logical Block Addressing) with start address.
Further, mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table, according to the static mappings table, obtains the source physical block address of source LBA (Logical Block Addressing) mapping and the purpose physical block address of purpose LBA (Logical Block Addressing) mapping; In being the zone of source physical block address, start address reads the data of above-mentioned data length; The data of the above-mentioned data length that reads are write to the zone that start address is the purpose physical block address.Above-mentioned indexing unit specifically is used for the source LBA (Logical Block Addressing) is added an invalid flag, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address.
Further, mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table, according to the dynamic mapping table, obtains the source physical block address of source LBA (Logical Block Addressing) mapping; Set up the mapping relations of purpose LBA (Logical Block Addressing) and source physical block address.Above-mentioned indexing unit specifically is used for the source LBA (Logical Block Addressing) is added an invalid flag, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address; Perhaps, concrete being used for according to source LBA (Logical Block Addressing) and dynamic mapping table, the source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that main frame can not obtain according to the source LBA (Logical Block Addressing) data of above-mentioned data length in the zone that start address is the source physical block address.
Need to prove, the specific implementation of each unit does not repeat them here referring to the corresponding units among memory device embodiment one ~ embodiment three of the present invention in the program 732.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of programmed instruction.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (13)
1. a data movement method is characterized in that, comprising:
The movement directive message that Receiving Host sends, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved;
According to described movement directive message, be that the data copy of data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address with start address;
The data markers that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is invalid.
2. method according to claim 1 is characterized in that,
When the mapping table of LBA (Logical Block Addressing) and physical block address was the static mappings table, described was that data copy to the start address of data length described in the zone of described source LBA (Logical Block Addressing) is that the zone of described purpose LBA (Logical Block Addressing) comprises with start address:
According to the static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the purpose physical block address of described purpose LBA (Logical Block Addressing) mapping;
In being the zone of described source physical block address, start address reads the data of described data length;
The data of the described data length that reads are write to the zone that start address is described purpose physical block address.
3. method according to claim 1 is characterized in that,
When the mapping table of LBA (Logical Block Addressing) and physical block address was the dynamic mapping table, described was that data copy to the start address of data length described in the zone of described source LBA (Logical Block Addressing) is that the zone of described purpose LBA (Logical Block Addressing) comprises with start address:
According to the dynamic mapping table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping;
Set up the mapping relations of described purpose LBA (Logical Block Addressing) and described source physical block address.
4. according to claim 2 or 3 described methods, it is characterized in that, described is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid comprising with start address:
Described main frame described source LBA (Logical Block Addressing) added an invalid flag, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
5. method according to claim 3 is characterized in that, described is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid comprising with start address:
According to described source LBA (Logical Block Addressing) and described dynamic mapping table, described main frame described source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
6. a data movement method is characterized in that, comprising:
Send movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, the data copy that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address, and is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid with start address.
7. a memory device is characterized in that, comprising:
Receiving element is used for the movement directive message that Receiving Host sends, and described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved;
Mobile unit is used for according to described movement directive message, is that the data copy of data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address with start address;
Indexing unit, being used for start address is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid.
8. memory device according to claim 7 is characterized in that,
Described mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the static mappings table, according to the static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the purpose physical block address of described purpose LBA (Logical Block Addressing) mapping; In being the zone of described source physical block address, start address reads the data of described data length; The data of the described data length that reads are write to the zone that start address is described purpose physical block address.
9. memory device according to claim 7 is characterized in that,
Described mobile unit specifically is used for when the mapping table of LBA (Logical Block Addressing) and physical block address is the dynamic mapping table, according to the dynamic mapping table, obtains the source physical block address of described source LBA (Logical Block Addressing) mapping; Set up the mapping relations of described purpose LBA (Logical Block Addressing) and described source physical block address.
10. according to claim 8 or 9 described memory devices, it is characterized in that,
Described indexing unit specifically is used for described source LBA (Logical Block Addressing) is added an invalid flag, so that described main frame can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
11. memory device according to claim 9 is characterized in that,
Described indexing unit specifically is used for according to described source LBA (Logical Block Addressing) and described dynamic mapping table, described main frame described source LBA (Logical Block Addressing) is mapped to invalid physical block address, so that can not obtain according to described source LBA (Logical Block Addressing) the data of data length described in the zone that start address is described source physical block address.
12. a main frame is characterized in that, comprising:
Transmitting element, be used for sending movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), purpose LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, the data copy that with start address is data length described in the zone of described source LBA (Logical Block Addressing) is the zone of described purpose LBA (Logical Block Addressing) to start address, and is that the data markers of data length described in the zone of described source LBA (Logical Block Addressing) is invalid with start address.
13. a data mobile system is characterized in that, comprises such as each described memory device of claim 7 ~ 11, and main frame as claimed in claim 12, described memory device is connected with described main-machine communication.
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