Patent ID: 8145838
Filing Date: 2012-03-27
Classification: G06F

Abstract:
1. A cluster storage system for providing clients access to data of a shared storage, the cluster storage system comprising: the shared storage comprising a plurality of aggregates, each aggregate comprising a predetermined set of storage devices for storing data of the aggregate; a plurality of nodes, each node assigned to service data of a predetermined plurality of aggregates in the shared storage, wherein during normal operation when no node failure has occurred, each node can access only the aggregates assigned to the node, the plurality of nodes comprising a primary node and a plurality of partner nodes comprising a first partner node and a second partner node; the primary node assigned to service data of a first aggregate and a second aggregate, the primary node comprising a local de-staging layer configured for: the first partner node comprising a first remote de-staging layer configured for: the second partner node comprising a second remote de-staging layer configured for: