Abstract: Embodiments of the present disclosure relate to a method an apparatus and a computer program product for constructing a scalable storage device by constructing the scalable storage device by combining a plurality of modularized building blocks; wherein each modularized building block in the plurality of modularized building blocks comprises a magnetic disk enclosure; and at least one modularized building block in the plurality of modularized building blocks comprises a storage processor, the storage processor comprising an input output processing unit; forming a cluster using the input output processing unit in the at least one modularized building block; and processing, using the cluster, an input or output (I/O) request from a host and metadata service.

Abstract: Embodiments of the present disclosure provide a method and device for storage management. The method comprises: receiving from a host a storage creating request which specifies a target capacity expected by the host creating for the host a first group of logical units having the target capacity; associating the first croup of logical units with physical storage for use by the host; and creating for the host a second group of logical units having a first additional capacity, the second group of logical units being unassociated with the physical storage.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for data processing. For example, a method is proposed, the method comprising: obtaining an intermediate identifier of data to be processed in an intermediate system; converting, based on an identifier mapping between the intermediate system and a remote system, the intermediate identifier into a first identifier in the remote system; and processing, in association with the remote system, the data at least partially based on the first identifier. A corresponding device and computer program product are also disclosed.

Abstract: Embodiments of the present disclosure provide a method and device for storage management. The method comprises: receiving from a host a storage creating request which specifies a target capacity expected by the host creating for the host a first group of logical units having the target capacity; associating the first croup of logical units with physical storage for use by the host; and creating for the host a second group of logical units having a first additional capacity, the second group of logical units being unassociated with the physical storage.

Abstract: Embodiments of the present disclosure relate to a method an apparatus and a computer program product for constructing a scalable storage device by constructing the scalable storage device by combining a plurality of modularized building blocks; wherein each modularized building block in the plurality of modularized building blocks comprises a magnetic disk enclosure; and at least one modularized building block in the plurality of modularized building blocks comprises a storage processor, the storage processor comprising an input output processing unit; forming a cluster using the input output processing unit in the at least one modularized building block; and processing, using the cluster, an input or output (I/O) request from a host and metadata service.

Abstract: Embodiments of the present disclosure relate to a data storage management method and system that is configured to: to monitor access conditions of data stored in a plurality of storage devices, wherein the plurality of storage devices are divided into a plurality of storage device tiers based on their respective characteristics; determine active degrees of the respective data based on the access conditions of the respective data; control movement of the respective data among the plurality of storage device tiers based on the active degrees of the respective data, such that the respective data are stored in the storage device tiers adapted to their respective active degrees.