Storage system with distributed tiered parallel file system comprising software-defined unified memory cluster

摘要

An apparatus in one embodiment comprises a storage system having a plurality of object storage servers. A software-defined storage controller of the storage system configures a unified memory cluster accessible to each of the plurality of object storage servers. The object storage servers collectively implement a distributed tiered parallel file system, such as a distributed tiered Lustre file system. The unified memory cluster may comprise portions of respective flash memories of a plurality of nodes of the storage system where each of the nodes comprises a corresponding one of the object storage servers. Objects stored in the flash memory of one of the nodes are mirrored into the flash memories of one or more other ones of the nodes under the control of the software-defined storage controller.