International Business Machines Corporation
Storing difference between current data version and one of multiple data versions in a dispersed storage network memory

Abstract:

Methods and systems for storing multiple data versions in a dispersed storage network memory are disclosed. A method includes: receiving, by a computing device, a request to store a current version of a data object in a dispersed storage network (DSN) memory; retrieving, by the computing device, a plurality of other versions of the data object from the DSN memory; for each of the plurality of other versions of the data object, the computing device determining a difference between the current version of the data object and the other version of the data object; and storing, by the computing device, in the DSN memory, the difference between the current version of the data object and a first other version of the data object selected from the plurality of other versions of the data object.