Network support for resource disaggregation in next-generation datacenters

Authors:
Sangjin Han;Norbert Egi;Aurojit Panda;Sylvia Ratnasamy;Guangyu Shi;Scott Shenker
Affiliations:
University of California, Berkeley, CA;Futurewei Technologies, Santa Clara, CA;University of California, Berkeley, CA;University of California, Berkeley, CA;Futurewei Technologies, Santa Clara, CA;University of California, Berkeley, CA and ICSI, Berkeley, CA
Venue:
Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks
Year:
2013

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Abstract

Datacenters have traditionally been architected as a collection of servers wherein each server aggregates a fixed amount of computing, memory, storage, and communication resources. In this paper, we advocate an alternative construction in which the resources within a server are disaggregated and the datacenter is instead architected as a collection of standalone resources. Disaggregation brings greater modularity to datacenter infrastructure, allowing operators to optimize their deployments for improved efficiency and performance. However, the key enabling or blocking factor for disaggregation will be the network since communication that was previously contained within a single server now traverses the datacenter fabric. This paper thus explores the question of whether we can build networks that enable disaggregation at datacenter scales.