CN102929792B - Data movement method and system, memory device and main frame - Google Patents
Data movement method and system, memory device and main frame Download PDFInfo
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- CN102929792B CN102929792B CN201210450261.4A CN201210450261A CN102929792B CN 102929792 B CN102929792 B CN 102929792B CN 201210450261 A CN201210450261 A CN 201210450261A CN 102929792 B CN102929792 B CN 102929792B
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Abstract
The embodiment of the present invention provides a kind of data movement method and system, memory device and main frame, this data movement method comprises: the movement directive message that Receiving Host sends, and described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; According to described movement directive message, data copy to the start address being data length described in the region of described source LBA (Logical Block Addressing) by start address is the region of described object LBA (Logical Block Addressing); By start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
Description
Technical field
The present invention relates to computer technology, particularly relate to data movement method and system, memory device and main frame.
Background technology
When host access memory device, data in memory device may be moved to another region from a region, be about to such as: by the region moving to LBA (Logical Block Addressing) B from the region of LBA (Logical Block Addressing) A of the data of length L, prior art is mainly through small computer system interface (SmallComputerSystemInterface; Hereinafter referred to as: SCSI) agreement or hi-tech configuration (AdvancedTechnologyAttachment; Hereinafter referred to as: ATA) agreement realizes.
Wherein, the process realized by SCSI agreement is: main frame sends copy order to memory device, memory device in inside by the data copy of LBA (Logical Block Addressing) A, length L to the region of LBA (Logical Block Addressing) B, host waits memory device has copied backward equipment and has sent unmap order, and the Data Labels of LBA (Logical Block Addressing) A, length L is invalid by memory device again.
The process realized by ATA agreement is: main frame is in 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 buffer zone again, then the data in buffer zone are write the region of memory device LBA (Logical Block Addressing) B by main frame write order, buffer release district again, the Data Labels of start logical A, length L is invalid by last main frame TRIM order notice memory device.
Realizing in process of the present invention, inventor find, if based on SCSI protocol realization data mobile, then main frame need with memory device between carry out twice mutual; If based on ATA protocol realization data mobile, then main frame needs to carry out three times alternately between memory device; Thus cause main frame to the mobile inefficiency of data in memory device.
Summary of the invention
The invention provides a kind of data movement method and system, memory device and main frame, in order to make main frame only send a movement directive message to memory device, can realize is the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address by data.
First aspect, the embodiment of the present invention provides 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), object LBA (Logical Block Addressing) and data length to be moved;
According to described movement directive message, data copy to the start address being data length described in the region of described source LBA (Logical Block Addressing) by start address is the region of described object LBA (Logical Block Addressing);
By start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid.
In conjunction with first aspect, in the first possible implementation of first aspect, when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, described data copy to the start address that is data length described in the region of described source LBA (Logical Block Addressing) by start address is that the region of described object LBA (Logical Block Addressing) comprises:
According to static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping;
Be the data reading described data length in the region of described source physical block address in start address;
The data of the described data length read are write to the region that start address is described object physical block address.
In conjunction with first aspect, in the implementation that the second of first aspect is possible, when the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, described data copy to the start address that is data length described in the region of described source LBA (Logical Block Addressing) by start address is that the region of described object LBA (Logical Block Addressing) comprises:
According to dynamic mapping table, obtain the source physical block address that described source LBA (Logical Block Addressing) maps;
Set up the mapping relations of described object LBA (Logical Block Addressing) and described source physical block address.
In conjunction with the first possible implementation of first aspect or the possible implementation of the second, in the third possible implementation of first aspect, described by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid comprising:
Described source LBA (Logical Block Addressing) is added an invalid flag, can not obtain according to described source LBA (Logical Block Addressing) the data that start address is data length described in the region of described source physical block address to make described main frame.
In conjunction with the implementation that the second of first aspect is possible, in the 4th kind of possible implementation of first aspect, described by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid comprising:
According to described source LBA (Logical Block Addressing) and described dynamic mapping table, described source LBA (Logical Block Addressing) is mapped to invalid physical block address, can not obtains according to described source LBA (Logical Block Addressing) the data that start address is data length described in the region of described source physical block address to make described main frame.
Second aspect, the embodiment of the present invention also provides a kind of data movement method, comprising:
Movement directive message is sent to memory device, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, data copy to the start address being data length described in the region of described source LBA (Logical Block Addressing) by start address is the region of described object LBA (Logical Block Addressing), and by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid.
The third aspect, the embodiment of the present invention provides a kind of memory device, comprising:
Receiving element, for the movement directive message that Receiving Host sends, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved;
Mobile unit, for according to described movement directive message, data copy to the start address being data length described in the region of described source LBA (Logical Block Addressing) by start address is the region of described object LBA (Logical Block Addressing);
Indexing unit, for by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described mobile unit is specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, according to static mappings table, obtain the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping; Be the data reading described data length in the region of described source physical block address in start address; The data of the described data length read are write to the region that start address is described object physical block address.
In conjunction with the third aspect, in the implementation that the second of the third aspect is possible, described mobile unit, specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, according to dynamic mapping table, obtains the source physical block address that described source LBA (Logical Block Addressing) maps; Set up the mapping relations of described object LBA (Logical Block Addressing) and described source physical block address.
In conjunction with the first possible implementation of the third aspect or the possible implementation of the second, in the third possible implementation of the third aspect, described indexing unit, specifically for described source LBA (Logical Block Addressing) is added an invalid flag, can not obtain according to described source LBA (Logical Block Addressing) the data that start address is data length described in the region of described source physical block address to make described main frame.
In conjunction with the implementation that the second of the third aspect is possible, in the 4th kind of possible implementation of the third aspect, described indexing unit is specifically for according to described source LBA (Logical Block Addressing) and described dynamic mapping table, described source LBA (Logical Block Addressing) is mapped to invalid physical block address, can not obtains according to described source LBA (Logical Block Addressing) the data that start address is data length described in the region of described source physical block address to make described main frame.
Fourth aspect, the embodiment of the present invention provides a kind of main frame, comprising:
Transmitting element, for sending movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that described memory device is according to described movement directive message, data copy to the start address being data length described in the region of described source LBA (Logical Block Addressing) by start address is the region of described object LBA (Logical Block Addressing), and by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid.
5th aspect, the embodiment of the present invention provides a kind of data movement system, comprises memory device as above, and main frame as above, and described memory device is connected with described main-machine communication.
The data movement method that the embodiment of the present invention provides and system, memory device and main frame, the movement directive message sent by memory device Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; According to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address; Start address is the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by memory device is invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
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 embodiments one of the present invention;
Fig. 8 is the structural representation of data movement system of the present invention;
Fig. 9 is the structural representation of computing node embodiment one provided by the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
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), object 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, make main frame can by notice memory device clear and definite for the intention of data mobile; When host access memory device, when needing the data in memory device to move to another region from a region, then main frame sends movement directive message to memory device, correspondingly, this movement directive message that memory device Receiving Host sends, wherein, this movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved.
Start address, according to movement directive message, is the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by step 102, memory device.
After memory device receives the movement directive message of main frame transmission, according to movement directive message, obtaining source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and the data length to be moved in movement directive message, is then that the data copy of data length to be moved in the region of source LBA (Logical Block Addressing) is in the region of LBA (Logical Block Addressing) for the purpose of start address by start address.
Start address is the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by step 103, memory device is invalid.
Memory device by data to be moved from start address be in the region being copied to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) after, according to movement directive message, be data length data markers to be moved in the region of source LBA (Logical Block Addressing) again by start address be invalid, make main frame to be not the data that source LBA (Logical Block Addressing) obtains this data length to be moved by start address again, and main frame is obtained by LBA (Logical Block Addressing) for the purpose of initial logical address when needing the data obtaining this data length to be moved; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.
The data movement method that the embodiment of the present invention one provides, the movement directive message that memory device is sent by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; According to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address; Be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in 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), object LBA (Logical Block Addressing) and data length to be moved.
Step 202, when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, memory device, according to movement directive message and static mappings table, obtains the source physical block address of source LBA (Logical Block Addressing) mapping and the object physical block address of object LBA (Logical Block Addressing) mapping.
Particularly, on a storage device, LBA (Logical Block Addressing) and physical block address have certain mapping relations, namely memory device can safeguard 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 fixing, can not change when memory device runs.And the mapping relations of the LBA (Logical Block Addressing) of preserving in dynamic mapping table and physical block address are unfixed, when memory device runs, 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 static mappings table, memory device is according to movement directive message, obtain source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and the data length to be moved in movement directive message, then from static mappings table, obtain physical block address and the source physical block address of source LBA (Logical Block Addressing) mapping, from static mappings table, also obtain physical block address and the object physical block address of the mapping of object LBA (Logical Block Addressing).
Step 203, memory device are read the data of above-mentioned data length in the region of source physical block address in start address.
Particularly, memory device finds start address to be the region of source physical block address according to source physical block address, and therefrom reads the data of data length to be moved.
The data of the above-mentioned data length read are write to the region of physical block address for the purpose of start address by step 204, memory device.
Particularly, after memory device reads the data of data length to be moved, then the data of read data length to be moved are write to the region of physical block address for the purpose of start address.
Source LBA (Logical Block Addressing) is added an invalid flag by step 205, memory device, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).
Memory device is behind region data to be moved being write to physical block address for the purpose of start address, according to movement directive message, again source LBA (Logical Block Addressing) being added an invalid flag, is invalid to realize memory device by the data markers of data length to be moved in the region of start address for source LBA (Logical Block Addressing).Because source LBA (Logical Block Addressing) with the addition of invalid flag, so main frame can only get invalid data by start address for this source LBA (Logical Block Addressing), namely not by start address be this source LBA (Logical Block Addressing) to obtain the data of this data length to be moved, but main frame is obtained by LBA (Logical Block Addressing) for the purpose of start address when needing the data obtaining this data length to be moved; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.
It should be noted that, based on ATA protocol realization data mobile, adopt the data movement method that the embodiment of the present invention provides, main frame without the need to distributing and buffer release district, also without the need to transmitting data between main frame and memory device.
The data movement method that the embodiment of the present invention two provides, the movement directive message that memory device is sent by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, memory device, according to movement directive message and static mappings table, obtains source physical block address that source LBA (Logical Block Addressing) maps and the object physical block address that object LBA (Logical Block Addressing) maps; Be the data reading above-mentioned data length in the region of source physical block address in start address; The data of the above-mentioned data length read are write to the region of physical block address for the purpose of start address; Source LBA (Logical Block Addressing) is added an invalid flag, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in 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), object 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 dynamic mapping table, memory device, according to dynamic mapping table, obtains the source physical block address that source LBA (Logical Block Addressing) maps.
Particularly, on a storage device, LBA (Logical Block Addressing) and physical block address have certain mapping relations, namely memory device can safeguard 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 fixing, can not change when memory device runs.And the mapping relations of the LBA (Logical Block Addressing) of preserving in dynamic mapping table and physical block address are unfixed, when memory device runs, 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 dynamic mapping table, memory device is according to movement directive message, obtain source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and the data length to be moved in movement directive message, then from dynamic mapping table, obtain physical block address and the source physical block address of source LBA (Logical Block Addressing) mapping, from dynamic mapping table, also obtain physical block address and the object physical block address of the mapping of object LBA (Logical Block Addressing).
The mapping relations of object LBA (Logical Block Addressing) and source physical block address set up by step 303, memory device.
Particularly, the mapping relations of object LBA (Logical Block Addressing) and object physical block address in dynamic mapping table removed by memory device, then set up the mapping relations of object LBA (Logical Block Addressing) and source physical block address, and are kept in this dynamic mapping table.
Start address is the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by step 304, memory device is invalid.
In a kind of feasible implementation, step 304 can be: source LBA (Logical Block Addressing) is added an invalid flag by memory device, with the data making main frame can not obtain data length to be moved in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Namely memory device does not change the mapping relations between source LBA (Logical Block Addressing) and source physical block address, but source LBA (Logical Block Addressing) is added an invalid flag, be invalid to realize memory device by the data markers of data length to be moved in the region of start address for source LBA (Logical Block Addressing).Because source LBA (Logical Block Addressing) with the addition of invalid flag, so main frame can only get invalid data by address of having begun for this source LBA (Logical Block Addressing), namely not by start address be this source LBA (Logical Block Addressing) to obtain the data of this data length to be moved, but main frame is obtained by LBA (Logical Block Addressing) for the purpose of start address when needing the data obtaining this data length to be moved; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.
In the implementation that another kind is feasible, step 304 can be: memory device is according to source LBA (Logical Block Addressing) and dynamic mapping table, source LBA (Logical Block Addressing) is mapped to invalid physical block address, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).Particularly, the mapping relations of source LBA (Logical Block Addressing) and source physical block address in dynamic mapping table removed by memory device, set up the mapping relations of source LBA (Logical Block Addressing) and invalid physical block address again, and be kept in this dynamic mapping table, so when main frame is source LBA (Logical Block Addressing) acquisition data by start address, the data in the region of the invalid physical block address that source LBA (Logical Block Addressing) maps can only be got, and invalid physical block address is an invalid address, so main frame not is that source LBA (Logical Block Addressing) is to obtain data by start address, but main frame is obtained by LBA (Logical Block Addressing) for the purpose of start address when needing the data obtaining this data length to be moved, thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.
It should be noted that, when based on ATA protocol realization data mobile, adopt the data movement method that provides of the embodiment of the present invention, main frame without the need to distributing and buffer release district, also without the need to transmitting data between main frame and memory device.
The data movement method that the embodiment of the present invention three provides, the movement directive message that memory device is sent by Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, memory device, according to dynamic mapping table, obtains the source physical block address that source LBA (Logical Block Addressing) maps; Set up the mapping relations of object LBA (Logical Block Addressing) and source physical block address; Be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.Further, memory device realizes data mobile by amendment mapping table, makes data movement operations process simple, reliable, further increases the efficiency of data mobile, meanwhile, do not need to carry out read-write operation to data, reduce 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:
Step 401, main frame send movement directive message to memory device, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address, and be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid.
In the present embodiment, in the interaction protocol of main frame and memory device, introduce special " data mobile " order, make main frame can by notice memory device clear and definite for the intention of data mobile, when host access memory device, when needing the data in memory device to move to the region of LBA (Logical Block Addressing) for the purpose of start address from the region that start address is source LBA (Logical Block Addressing), then main frame sends movement directive message to memory device, wherein, this movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, correspondingly, this movement directive message that memory device Receiving Host sends, according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of data length to be moved in the region of source LBA (Logical Block Addressing) by start address, and be the data markers of data length to be moved in the region of source LBA (Logical Block Addressing) by start address be invalid, main frame is made to be not the data that source LBA (Logical Block Addressing) obtains this data length to be moved by start address again, but main frame is obtained by LBA (Logical Block Addressing) for the purpose of initial logical address when needing the data obtaining this data length to be moved, thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.
The data movement method that the embodiment of the present invention four provides, movement directive message is sent to memory device by main frame, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address, and be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
Fig. 1 of the present invention ~ method provided embodiment illustrated in fig. 4, may be used in the application scenarios shown in Fig. 5, and Fig. 5 is the schematic diagram of application scenarios embodiment one of the present invention, and the application scenarios shown in Fig. 5 comprises memory device and main frame.
Particularly, main frame sends movement directive message to memory device, and this movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved.After the movement directive message that memory device Receiving Host sends, according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address.Then start address is the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by this memory device is invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
It should be noted that, on the basis of the various embodiments described above, further, in a kind of feasible implementation, memory device is after to complete start address that to be the data markers of data length to be moved in the region of source LBA (Logical Block Addressing) be invalid, initiatively send data mobile success response to main frame, after main frame receives this data mobile success response, can know that data mobile process is successfully completed; Or, in memory device after data mobile procedure failure, memory device initiatively sends data mobile failure response to main frame, carries failure cause in this data mobile failure response, after main frame receives this data mobile failure response, perform corresponding operation according to failure cause.
In the implementation that another kind is feasible, main frame is sending movement directive message, initiatively querying command message is sent to memory device after waiting for a period of time, memory device receives this querying command message, send inquiry response to main frame, this inquiry response is failed in order to carry out data mobile or data mobile success or data mobile to main frame feedback.If the data mobile process in memory device does not also complete, then memory device responds to main frame transmission data mobile, and main frame receives this data mobile and responds, more initiatively sends querying command message to memory device after waiting for a period of time; If data mobile process is successfully completed in memory device, then memory device sends data mobile success response to main frame, after main frame receives this data mobile success response, can know that data mobile process is successfully completed; If data mobile procedure failure in memory device, then memory device sends data mobile failure response to main frame, failure cause is carried in this data mobile failure response, after main frame receives this data mobile failure response, corresponding operation is performed 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, the movement directive message that receiving element 11 sends for Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; Start address for according to movement directive message, is the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by mobile unit 12; Indexing unit 13 for by start address be source LBA (Logical Block Addressing) region in the data markers of above-mentioned data length be invalid.
The memory device of the present embodiment, may be used for the technical scheme performing embodiment of the method shown in Fig. 1, it is similar that it realizes principle, see the record of above-described embodiment, can repeat no more in detail herein.
The memory device that the embodiment of the present invention one provides, the movement directive message sent by receiving element Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; Start address, according to movement directive message, is the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by mobile unit; Start address is the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by indexing unit is invalid, thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
In memory device embodiment two of the present invention, on the basis of the structure of memory device shown in Fig. 6, above-mentioned mobile unit 12 is specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, according to static mappings table, obtain the source physical block address of source LBA (Logical Block Addressing) mapping and the object physical block address of object LBA (Logical Block Addressing) mapping; Be the data reading above-mentioned data length in the region of source physical block address in start address; The data of the above-mentioned data length read are write to the region of physical block address for the purpose of start address.Above-mentioned indexing unit 13 specifically for source LBA (Logical Block Addressing) is added an invalid flag, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).
The memory device of the present embodiment, may be used for the technical scheme performing embodiment of the method shown in Fig. 2, it is similar that it realizes principle, see the record of above-described embodiment, can repeat no more in detail herein.
The memory device that the embodiment of the present invention two provides, the movement directive message sent by receiving element Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, mobile unit is according to static mappings table, the source physical block address that acquisition source LBA (Logical Block Addressing) maps and the object physical block address that object LBA (Logical Block Addressing) maps, be the data reading above-mentioned data length in the region of source physical block address in start address, the data of the above-mentioned data length read write to the region of physical block address for the purpose of start address; Source LBA (Logical Block Addressing) is added an invalid flag by indexing unit, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
In memory device embodiment three of the present invention, on the basis of the structure of memory device shown in Fig. 6, above-mentioned mobile unit 12, specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, according to dynamic mapping table, obtains the source physical block address that source LBA (Logical Block Addressing) maps; Set up the mapping relations of object LBA (Logical Block Addressing) and source physical block address.Above-mentioned indexing unit 13 specifically for source LBA (Logical Block Addressing) is added an invalid flag, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Or, specifically for according to source LBA (Logical Block Addressing) and dynamic mapping table, source LBA (Logical Block Addressing) is mapped to invalid physical block address, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).
The memory device of the present embodiment, may be used for the technical scheme performing embodiment of the method shown in Fig. 3, it is similar that it realizes principle, see the record of above-described embodiment, can repeat no more in detail herein.
The memory device that the embodiment of the present invention three provides, the movement directive message sent by receiving element Receiving Host, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved; When the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, mobile unit, according to dynamic mapping table, obtains the source physical block address that source LBA (Logical Block Addressing) maps, sets up the mapping relations of object LBA (Logical Block Addressing) and source physical block address; Source LBA (Logical Block Addressing) is added an invalid flag by indexing unit, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Or source LBA (Logical Block Addressing), according to source LBA (Logical Block Addressing) and dynamic mapping table, is mapped to invalid physical block address by indexing unit, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.Further, memory device realizes data mobile by amendment mapping table, makes data movement operations process simple, reliable, further increases the efficiency of data mobile, meanwhile, do not need to carry out read-write operation to data, reduce the loss of memory device.
Fig. 7 is the structural representation of host embodiments 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 for sending movement directive message to memory device, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address, and be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid.
The main frame of the present embodiment, may be used for the technical scheme performing embodiment of the method shown in Fig. 4, it is similar that it realizes principle, see the record of above-described embodiment, can repeat no more in detail herein.
The main frame that the embodiment of the present invention one provides, movement directive message is sent to memory device by transmitting element, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, so that memory device is according to movement directive message, be the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address, and be the data markers of above-mentioned data length in the region of source LBA (Logical Block Addressing) by start address be invalid; Thus to achieve data be the process in the region moving to LBA (Logical Block Addressing) for the purpose of start address the region of source LBA (Logical Block Addressing) from start address.Because main frame only sends a movement directive message to memory device, so main frame only needs to carry out between memory device once alternately, improve the efficiency of main frame to the data movement in memory device.
Fig. 8 is the structural representation of data movement system of the present invention, 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 main frame 20 represents the communication connection between memory device 10 and main frame 20, wherein, memory device 10 can adopt the structure of arbitrary device embodiment in memory device embodiment one to embodiment three of the present invention, it accordingly, the technical scheme of either method embodiment in Fig. 1 ~ Fig. 3 can be performed, it realizes principle and technique effect is similar, repeats no more herein.Main frame 20 can adopt the structure of device embodiment in Fig. 7, and it can perform the technical scheme of embodiment of the method in Fig. 4 accordingly, and it realizes principle and technique effect is 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 comprising computing power, or personal computer (PersonalComputer; Hereinafter referred to as: PC), or portable portable computer or terminal etc., the present invention does not limit at this, and the specific embodiment of the invention does not limit the specific implementation of computing node 700.Computing node 700 can comprise: processor (Processor) 710, communication interface (CommunicationsInterface) 720, storer (memory) 730, communication bus 740, wherein, processor 710, communication interface 720 and storer 730 complete the communication between each equipment by communication bus 740, processor 710 is for communicating with network element 750, and network element 750 can be Virtual Machine Manager center or share storage etc.
Storer 730 is for depositing program 732.Storer 730 can comprise high speed random access memory (RandomAccessMemory; Hereinafter referred to as: RAM), still can comprise nonvolatile memory (Non-volatileMemory), such as, be at least one magnetic disk memory.
Processor 710 is 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 (CentralProcessingUnit; Hereinafter referred to as CPU), or specific integrated circuit ASIC(ApplicationSpecificIntegratedCircuit; Hereinafter referred to as: ASIC), or be configured to the one or more integrated circuit implementing the embodiment of the present invention.Program 732 in the present embodiment specifically may be used for:
Receiving element, for the movement directive message that Receiving Host sends, movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved.
Start address for according to movement directive message, is the region of data copy to LBA (Logical Block Addressing) for the purpose of start address of above-mentioned data length in the region of source LBA (Logical Block Addressing) by mobile unit,
Indexing unit, for by start address be source LBA (Logical Block Addressing) region in the data markers of above-mentioned data length be invalid.
Further, mobile unit, specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, according to static mappings table, obtains the source physical block address of source LBA (Logical Block Addressing) mapping and the object physical block address of object LBA (Logical Block Addressing) mapping; Be the data reading above-mentioned data length in the region of source physical block address in start address; The data of the above-mentioned data length read are write to the region of physical block address for the purpose of start address.Above-mentioned indexing unit specifically for source LBA (Logical Block Addressing) is added an invalid flag, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).
Further, mobile unit, specifically for when the mapping table of LBA (Logical Block Addressing) and physical block address is dynamic mapping table, according to dynamic mapping table, obtains the source physical block address that source LBA (Logical Block Addressing) maps; Set up the mapping relations of object LBA (Logical Block Addressing) and source physical block address.Above-mentioned indexing unit specifically for source LBA (Logical Block Addressing) is added an invalid flag, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing); Or, specifically for according to source LBA (Logical Block Addressing) and dynamic mapping table, source LBA (Logical Block Addressing) is mapped to invalid physical block address, with the data making main frame can not obtain above-mentioned data length in the region of start address for source physical block address according to source LBA (Logical Block Addressing).
It should be noted that, in program 732, the specific implementation of each unit is see the corresponding units in memory device embodiment of the present invention one ~ embodiment three, does not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a data movement method, is characterized in that, comprising:
The movement directive message that memory device Receiving Host sends, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved;
When the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, described memory device, according to described movement directive message and described static mappings table, obtains the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping; Be the data reading described data length in the region of described source physical block address in start address, the data of the described data length read are write to the region that start address is described object physical block address; The LBA (Logical Block Addressing) of preserving in described static mappings table and the mapping relations of physical block address are fixing;
Described memory device by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid;
Described by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid comprising: described source LBA (Logical Block Addressing) is added an invalid flag, to make described main frame can not according to described source LBA (Logical Block Addressing) to obtain start address be data length described in the region of described source physical block address data.
2. a data movement method, is characterized in that, comprising:
Main frame sends movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, during with the mapping table of convenient LBA (Logical Block Addressing) and physical block address for static mappings table, described memory device, according to described movement directive message and described static mappings table, obtains the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping; Be the data reading described data length in the region of described source physical block address in start address, the data of the described data length read are write to the region that start address is described object physical block address, and by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid; Described by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid comprising: described source LBA (Logical Block Addressing) is added an invalid flag, to make described main frame can not according to described source LBA (Logical Block Addressing) to obtain start address be data length described in the region of described source physical block address data.
3. a memory device, is characterized in that, comprising:
Receiving element, for the movement directive message that Receiving Host sends, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved;
Mobile unit, for when the mapping table of LBA (Logical Block Addressing) and physical block address is static mappings table, according to described movement directive message and described static mappings table, obtaining the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping, is the data reading described data length in the region of described source physical block address in start address; The data of the described data length read are write to the region that start address is described object physical block address; The LBA (Logical Block Addressing) of preserving in described static mappings table and the mapping relations of physical block address are fixing;
Indexing unit, for by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid;
Described indexing unit, specifically for described source LBA (Logical Block Addressing) is added an invalid flag, can not obtain according to described source LBA (Logical Block Addressing) the data that start address is data length described in the region of described source physical block address to make described main frame.
4. a main frame, is characterized in that, comprising:
Transmitting element, for sending movement directive message to memory device, described movement directive message comprises source LBA (Logical Block Addressing), object LBA (Logical Block Addressing) and data length to be moved, during with the mapping table of convenient LBA (Logical Block Addressing) and physical block address for static mappings table, described memory device, according to described movement directive message and described static mappings table, obtains the source physical block address of described source LBA (Logical Block Addressing) mapping and the object physical block address of described object LBA (Logical Block Addressing) mapping; Be the data reading described data length in the region of described source physical block address in start address, the data of the described data length read are write to the region that start address is described object physical block address, and by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid;
Described by start address for the data markers of data length described in the region of described source LBA (Logical Block Addressing) is invalid comprising: described source LBA (Logical Block Addressing) is added an invalid flag, to make described main frame can not according to described source LBA (Logical Block Addressing) to obtain start address be data length described in the region of described source physical block address data.
5. a data movement system, is characterized in that, comprises memory device as claimed in claim 3, and main frame as claimed in claim 4, and described memory device is connected with described main-machine communication.
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