Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.

Abstract: A computer-implemented method according to one embodiment includes generating a first matrix based on words extracted from documents, and generating a second matrix based on deduplication chunks. The deduplication chunks include words of the documents. Word clustering is performed based on an analysis performed on the second matrix. Each cluster of the words represents a feature of at least one of the documents. The method further includes generating a third matrix based on the first matrix and the clusters, and performing text mining using the third matrix. A computer program product according to another embodiment includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and/or executable by a computer to cause the computer to perform the foregoing method.

Abstract: In the technical field of data storage and access, the invention relates to the technique of data transmission using a storage area network (SAN) in a magnetic disk storage device environment, including a method for transmitting data over a SAN in such an environment, including: determining a logical volume accessible to a server of the magnetic disk storage device; obtaining information on a logical volume accessible to a client of the magnetic disk storage device, which is determined by the client; establishing a corresponding relationship between the logical volume accessible to the server and the logical volume accessible to the client; receiving a request for using the logical volume of the magnetic disk storage device from the client; and informing the client of an available logical volume by utilizing the corresponding relationship so that a data access to the available logical volume is performed by the client over the SAN.

Abstract: In the technical field of data storage and access, the invention relates to the technique of data transmission using a storage area network (SAN) in a magnetic disk storage device environment, including a method for transmitting data over a SAN in such an environment, including: determining a logical volume accessible to a server of the magnetic disk storage device; obtaining information on a logical volume accessible to a client of the magnetic disk storage device, which is determined by the client; establishing a corresponding relationship between the logical volume accessible to the server and the logical volume accessible to the client; receiving a request for using the logical volume of the magnetic disk storage device from the client; and informing the client of an available logical volume by utilizing the corresponding relationship so that a data access to the available logical volume is performed by the client over the SAN.

Abstract: In the technical field of data storage and access, the invention relates to the technique of data transmission using a storage area network (SAN) in a magnetic disk storage device environment, including a method for transmitting data over a SAN in such an environment, including: determining a logical volume accessible to a server of the magnetic disk storage device; obtaining information on a logical volume accessible to a client of the magnetic disk storage device, which is determined by the client; establishing a corresponding relationship between the logical volume accessible to the server and the logical volume accessible to the client; receiving a request for using the logical volume of the magnetic disk storage device from the client; and informing the client of an available logical volume by utilizing the corresponding relationship so that a data access to the available logical volume is performed by the client over the SAN.

Abstract: The present disclosure discloses a method and system for data deduplication. The method comprises: acquiring meta data and multiple data chunks corresponding to at least one original data object, which are generated by using a data deduplication method; combining the acquired multiple data chunks into a new data object; performing deduplication on the new data object to generate new meta data and new data chunks corresponding to the new data object; and storing the meta data corresponding to the at least one original data object, the new meta data corresponding to the new data object, and the new data chunks. The method and system can further improve deduplication ratio, lower data storage amount, and save costs.

Abstract: In the technical field of data storage and access, the invention relates to the technique of data transmission using a storage area network (SAN) in a magnetic disk storage device environment, including a method for transmitting data over a SAN in such an environment, including: determining a logical volume accessible to a server of the magnetic disk storage device; obtaining information on a logical volume accessible to a client of the magnetic disk storage device, which is determined by the client; establishing a corresponding relationship between the logical volume accessible to the server and the logical volume accessible to the client; receiving a request for using the logical volume of the magnetic disk storage device from the client; and informing the client of an available logical volume by utilizing the corresponding relationship so that a data access to the available logical volume is performed by the client over the SAN.

Abstract: In the technical field of data storage and access, the invention relates to the technique of data transmission using a storage area network (SAN) in a magnetic disk storage device environment, including a method for transmitting data over a SAN in such an environment, including: determining a logical volume accessible to a server of the magnetic disk storage device; obtaining information on a logical volume accessible to a client of the magnetic disk storage device, which is determined by the client; establishing a corresponding relationship between the logical volume accessible to the server and the logical volume accessible to the client; receiving a request for using the logical volume of the magnetic disk storage device from the client; and informing the client of an available logical volume by utilizing the corresponding relationship so that a data access to the available logical volume is performed by the client over the SAN.