High Performance Block I/O for Global File System (GFS) with InfiniBand RDMA

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Provided by: The Ohio Society of CPAs
Topic: Storage
Format: PDF
State-of-the-art network technology has scaled to 10Gbps. However, TCP's high processing overhead and redundant data copies remain a major bottleneck for applications to fully benefit from such high speed technology. Remote Direct Memory Access (RDMA), as an emerging communication protocol, provides an opportunity for efficient storage system design by virtue of RDMA's none data touching semantics. Although RDMA based designs have been proposed to improve network file I/O protocols in several previous works, its benefit for cluster file system block I/O is not clear yet.
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