Communications of the ACM
A New High Performance and Fault-Tolerant Datacenter Network For Modular Datacenters Was Proposed
This shows the full logical structures and partial physical structures of SCautz(2,4,2).
Credit: Science China Press
Scientists from China's National University of Defense Technology propose a hybrid intra-container network for a modular data center (MDC) called SCautz, along with an attendant suite of routing protocols.
They say SCautz delivers high network throughput for diverse traffic patterns and supports graceful performance degradation in the presence of mounting server and switch faults.
Advantages of SCautz’s hybrid architecture include its ability to operate in different modes with switches on or off. The data center structure also can enhance performance by a factor of two via the use of switches, enabling it to accommodate bursts of network flows without compromising the quality of bandwidth-heavy applications. SCautz's use of redundant switches augments the fault tolerance of a modular data center network, allowing it in instances of server failure to locate a peer server in the same cluster to circumvent the failed one. This maintains throughput for one-to-x traffic and roughly halves aggregate bottleneck throughput loss to make performance degradation much slower than the MDC's computation of storage capacity.
The researchers note that SCautz's redundant design also offers a very low additional expense.
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