Patent ID: 9218244
Filing Date: 2015-12-22
Classification: G06F

Abstract:
1. A plurality of storage nodes in a single chassis, comprising: the plurality of storage nodes configured to communicate together as a storage cluster; each of the plurality of storage nodes having nonvolatile solid-state memory for user data storage; one or more controller of each of the plurality of storage nodes configured to distribute the user data and metadata throughout the plurality of storage nodes according to a first erasure coding scheme; and the one or more controller of each of the plurality of storage nodes further configured to decide to utilize one of the first erasure coding scheme or a differing erasure coding scheme to rebuild the user data across stripes in a first set of the plurality of storage nodes from recovered user data striped across a second set of the plurality of storage nodes, the second set of the plurality of storage nodes having an unreachable storage node.