Patent attributes
A method for modifying data stored in a dispersed storage network (DSN). In various embodiments, a data object is received for storage in DSN memory. A dispersed storage processing unit determines a number of data segments for the data object and divides the data object into a plurality of data blocks. The data blocks are allocated to the data segments in a column-row orientation (for example, columns may be populated with successive data blocks of the data object). The data segments are encoded to produce a plurality of sets of encoded data slices. Additional data received for the data object is divided into additional data blocks that are allocated to data segments to create one or more new columns, which are encoded to produce a plurality of encoded data slice addendums. The encoded data slice addendums are then appended to existing encoded data slices corresponding to the data object.
