Abstract: A method, computer system, and a computer program product for block prediction are provided. A computer receives a first retrieval request for retrieving data from storage blocks. The computer performs a cosine similarity comparison of the first retrieval request compared to prior data retrievals. The computer selects a matching data retrieval of the prior data retrievals. The matching data retrieval has a closest match to the first retrieval request based on the cosine similarity comparison. The computer identifies another storage block from the matching data retrieval as a predicted block for the first retrieval request. The computer transmits a prefetch request to prefetch data from the predicted block.

Abstract: A computer-implemented method, according to one embodiment, includes: receiving, by a computer, a data access request; sending, by the computer, a recall request to a remote storage location for data which corresponds to the data access request; and receiving, by the computer, a copy of an existing object which includes blocks. The data which corresponds to the data access request is stored in at least one of the blocks. The data access request is satisfied, by the computer, by providing the copy of the existing object. Moreover, a sparse object, which only includes ones of the blocks which contain data that has been modified, is received by the computer. The sparse object is sent, by the computer, to the remote storage location; and one or more instructions to use the blocks included in the sparse object to update the existing object are also sent by the computer.

Abstract: A computer-implemented method, according to one embodiment, includes: receiving, by a computer, a data access request; sending, by the computer, a recall request to a remote storage location for data which corresponds to the data access request; and receiving, by the computer, a copy of an existing object which includes blocks. The data which corresponds to the data access request is stored in at least one of the blocks. The data access request is satisfied, by the computer, by providing the copy of the existing object. Moreover, a sparse object, which only includes ones of the blocks which contain data that has been modified, is received by the computer. The sparse object is sent, by the computer, to the remote storage location; and one or more instructions to use the blocks included in the sparse object to update the existing object are also sent by the computer.