Patent ID: 8325724
Filing Date: 2012-12-04
Classification: G06F,H04L

Abstract:
1. A system comprising: one or more processors configured to: redistribute one or more originator data subsets among a plurality of originator nodes, wherein the one or more originator data subsets were initially distributed among the plurality of originator nodes according to an initial distribution arrangement, and redistributing the one or more originator data subsets changes the initial distribution arrangement of the original data subsets to a new distribution arrangement; and determine data redistribution information pertaining to redistribution of the one or more originator data subsets among the plurality of originator nodes; and a communication interface configured to send data redistribution information pertaining to redistribution of the one or more originator data subsets among the plurality of originator nodes to a replica system comprising a plurality of replica nodes; wherein: the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the data redistribution information is used by the replica system to redistribute one or more corresponding replica data subsets among the plurality of replica nodes; the one or more originator data subsets include one or more data containers; the data redistribution information includes metadata information associated with the one or more data containers; and the metadata information including identification information of the one or more data containers, identification information of one or more originator nodes on which the one or more data containers previously resided, and identification information of one or more current nodes to which the containers are redistributed; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.