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SUMMARY:Rethinking Storage and Networking in Next Generation Racks - Serge
 y Legtchenko\, Post-doc Researcher\, Systems &amp\; Networking\, Microsoft
  Research Ltd
DTSTART:20151022T090000Z
DTEND:20151022T100000Z
UID:TALK61744@talks.cam.ac.uk
CONTACT:Microsoft Research Cambridge Talks Admins
DESCRIPTION:A standard data center rack today is composed of shared-nothin
 g commodity servers. Recent data center hardware trends suggest a shift in
  the rack design\, enabling high density “rack-scale computers” optimi
 zed and managed at rack-scale and targeted at data center workloads.\n\nIn
  this talk\, I will describe two projects that illustrate the potential an
 d challenges of this approach. First\, Pelican is a disk-based rack-scale 
 cold data store. It has a converged rack-scale design in which resources\,
  such as power and cooling are provisioned just for the requirements of th
 e workload. Thanks to that\, Pelican has a low total cost of ownership com
 parable to tape and has a much lower latency than tape. Achieving that req
 uires a novel storage stack that manages complex resource constraints at r
 ack scale. \nSecond\, XFabric is a rack-scale network in which the physica
 l network topology can be dynamically reconfigured. XFabric is a packet-sw
 itched network that operates over a physical circuit-switched topology. XF
 abric is managed by a rack-scale controller that optimizes the in-rack top
 ology for the traffic demand at runtime. XFabric uses low-cost electrical 
 circuit switches\, supports about 300 servers per rack and significantly o
 utperforms static topologies. \n
LOCATION:Auditorium\, Microsoft Research Ltd\, 21 Station Road\, Cambridge
 \, CB1 2FB
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