Patent attributes
Data convolution for geographically diverse storage is disclosed. Data chunks stored in storage devices of different zones of a zone storage system can be convolved to conserve memory. The zone storage system can be a geographically diverse storage system. A convolved chunk can be stored at a zone that does not contribute to the data represented in the convolved chunk. In an aspect, a copy of a first chunk from a first zone can be created at a third zone, which can facilitate convolving the data of the copy with data from a second zone as the data from the second chunk of the second zone is received at the third zone, e.g., without having to create a local copy of the second chunk, which can be termed ‘on-arrival convolving’ or other similar terms. The copy of the first chunk can then be deleted. Copies of the convolved chunk can be created.
