MIGRATING ENCODED DATA SLICES IN A DISPERSED STORAGE NETWORK

摘要

A method begins by a processing module of a dispersed storage network (DSN) identifying a change in DSN memory of the DSN. For a set of encoded data slices effected by the change, the method continues with the processing module ascertaining updated properties of the DSN memory and performing an updating scoring function using properties of DSN access information and the updated properties of the DSN memory to produce an updated storage scoring resultant. The method continues with the processing module utilizing the updated storage scoring resultant to identify an updated set of storage units affiliated with a given storage pool of a plurality of storage pools of the DSN memory and sending at least one data migration request to at least one storage unit of the updated set of storage units regarding migration of at least one encoded data slice of the set of encoded data slices.

主权项

1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises:
identifying a change in DSN memory of the DSN; and for a set of encoded data slices effected by the change in the DSN memory, wherein a data segment of a data object is dispersed storage error encoded to produce the set of encoded data slices:
ascertaining updated properties of the DSN memory, wherein the updated properties includes the change in the DSN memory;performing an updating scoring function using one or more properties of DSN access information of the data segment and one or more properties of the updated properties of the DSN memory to produce an updated storage scoring resultant, wherein the DSN memory includes a plurality of storage units that are logically arranged into a plurality of storage pools;utilizing the updated storage scoring resultant to identify an updated set of storage units of the plurality of storage units affiliated with a given storage pool of the plurality of storage pools; andsending at least one data migration request to at least one storage unit of the updated set of storage units regarding migration of at least one encoded data slice of the set of encoded data slices.