US Patent 10152481 Technique to scale out namespace

A first data is stored in a first filesystem data storage, wherein the first filesystem data storage is part of a first cluster node that comprises a common filesystem metadata. A second data is stored in a second filesystem data storage, wherein the second filesystem data storage is part of a second cluster node coupled with the first cluster node that comprises the common filesystem metadata. The first cluster node and the second cluster node are associated with a cluster for shared storage.