Interconnection Architectures for Petabyte-Scale High-Performance Storage Systems
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Overview: As demand for storage bandwidth and capacity grows, designers have proposed the construction of petabytescale storage systems. Rather than relying upon a few very large storage arrays, these petabyte-scale systems have thousands of individual disks working together to provide aggregate storage system bandwidth exceeding 100GB/s. However, providing this bandwidth to storage system clients becomes difficult due to limits in network technology. This paper discusses different interconnection topologies for large disk-based systems, drawing on previous experience from the parallel computing community.