Patent ID: 9203902
Filing Date: 2015-12-01
Classification: G06F,H04L

Abstract:
1. A distributed method having a processing unit for securely and reliably storing large amounts of data, the method comprises: storing, by ingesting dispersed storage (DS) units of a set of DS units, respective portions of the large amounts of data based on a data partitioning agreement of the set of DS units; generating, by each of the ingesting DS units, first respective partial redundancy data and second respective partial redundancy data for the respective portion of the large amounts of data; sending, by each of the ingesting DS units, the first respective partial redundancy data to a first redundancy DS unit of the set of DS units; sending, by each of the ingesting DS units, the second respective partial redundancy data to a second redundancy DS unit of the set of DS units; performing, by the first redundancy DS unit, a first portion of a dispersed storage error encoding function to combine the first respective partial redundancy data of each of the ingesting DS units to generate first respective redundancy data; storing, by the first redundancy DS unit, the first respective redundancy data; performing, by the second redundancy DS unit, a second portion of the dispersed storage error encoding function to combine the second respective partial redundancy data of each of the ingesting DS units to generate second respective redundancy data; storing, by the second redundancy DS unit, the second respective redundancy data.