{"id":192832,"date":"2015-10-23T00:00:00","date_gmt":"2015-10-23T21:47:09","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/rethinking-storage-and-networking-in-next-generation-racks\/"},"modified":"2016-07-15T15:26:49","modified_gmt":"2016-07-15T22:26:49","slug":"rethinking-storage-and-networking-in-next-generation-racks","status":"publish","type":"msr-video","link":"https:\/\/www.microsoft.com\/en-us\/research\/video\/rethinking-storage-and-networking-in-next-generation-racks\/","title":{"rendered":"Rethinking Storage and Networking in Next Generation Racks"},"content":{"rendered":"<div class=\"asset-content\">\n<p>A standard data center rack today is composed of shared-nothing commodity servers. Recent data center hardware trends suggest a shift in the rack design, enabling high density \u201crack-scale computers\u201d optimized and managed at rack-scale and targeted at data center workloads.<\/p>\n<p>In this talk, I will describe two projects that illustrate the potential and 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 the workload. Thanks to that, Pelican has a low total cost of ownership comparable to tape and has a much lower latency than tape. Achieving that requires a novel storage stack that manages complex resource constraints at rack scale. Second, XFabric is a rack-scale network in which the physical network topology can be dynamically reconfigured. XFabric is a packet-switched network that operates over a physical circuit-switched topology. XFabric is managed by a rack-scale controller that optimizes the in-rack topology for the traffic demand at runtime. XFabric uses low-cost electrical circuit switches, supports about 300 servers per rack and significantly outperforms static topologies.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A standard data center rack today is composed of shared-nothing commodity servers. Recent data center hardware trends suggest a shift in the rack design, enabling high density \u201crack-scale computers\u201d optimized and managed at rack-scale and targeted at data center workloads. In this talk, I will describe two projects that illustrate the potential and challenges of [&hellip;]<\/p>\n","protected":false},"featured_media":199304,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","footnotes":""},"research-area":[13547],"msr-video-type":[],"msr-locale":[268875],"msr-post-option":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-192832","msr-video","type-msr-video","status-publish","has-post-thumbnail","hentry","msr-research-area-systems-and-networking","msr-locale-en_us"],"msr_download_urls":"","msr_external_url":"https:\/\/youtu.be\/nnJctXmElmo","msr_secondary_video_url":"","msr_video_file":"","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/192832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-video"}],"version-history":[{"count":0,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/192832\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media\/199304"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=192832"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=192832"},{"taxonomy":"msr-video-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video-type?post=192832"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=192832"},{"taxonomy":"msr-post-option","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-post-option?post=192832"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=192832"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=192832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}