PPT-Validating Datacenters at Scale

Karthick Jayaraman Nikolaj Bjørner Jitu Padhye Amar Agrawal Ashish Bhargava PaulAndre C Bissonnette Shane Foster Andrew Helwer Mark Kasten Ivan Lee Anup Namdhari Haseeb Niaz Aniruddha Parkhi Hanukumar Pinnamraju Adrian Power Neha Milind Raje Parag Sharma. Slide . 1. Google Datacenter. CS 142 Lecture Notes: Datacenters. Slide . 2. Datacenter Organization. Rack:. 50 machines. DRAM: . 800-3200GB . @ 300 . µs. Disk: 100TB @ 10ms. Single server:. 8-24 . cores. Raw Scale Raw Scale Raw Scale Raw Scale Score Score Score Score Score Score Score Score 86 100 64 80 42 66 20 42 85 98 63 79 41 66 19 41 84 97 62 79 40 65 18 39 83 95 61 78 39 64 17 38 82 94 60 77 38 ...........................................................................2 ....................................................................................................................2 Surve IaaS. Rand Morimoto, Ph.D., MVP. Chris Amaris, MCITP, CISSP. DCIM-B330. About the Speakers. Rand Morimoto / Chris Amaris. Co-authors of dozens of books on Windows, System Center, Exchange, Azure, Enterprise Security. Figure1:UsingSOFTScale,wecanmeetresponsetimeSLAsevenundera15%to30%loadjump.Notethatthey-axisrangesfrom0sto50s.thispaper,weconsiderthemoredifcultgoalofmeetingtheT95requirementsduringthesetuptime(i.e., Dr. Paul Rockett . Casualty Actuaries in Europe, 31 May . 2013. 31 May 2013. Page . 1. Agenda. Introduction. Validation tools. Validating catastrophe models. The bigger picture. Summary. Challenges in Validating Catastrophe Models. Less chemistry. More p. hysics . of location, location, location. Latest world-class nickel deposit. w. as found in Canada by diamond explorers. Voisey’s. Bay, . Canada. Photograph. : Data . Metallogenica. Costin Raiciu. Advanced Topics in Distributed Systems. 2011. TCP Primer. Loss recovery. Fast retransmit. Timeouts. Congestion Control. Buffer sizing. TCP . Incast. Why does it happen?. How bad is it?. Paul Andrew Twitter @. pndrw. Technical Product Manager. Office 365. Microsoft. BRK2161. Agenda. Microsoft datacenters and network. Connecting your network to Office 365. ExpressRoute for Office 365. Wenting . Wang. Le Xu. Indranil Gupta. Department of Computer Science, University of Illinois, Urbana Champaign . 1. Scale up VS. Scale out. A dilemma for cloud application users: scale up or scale out? . Scale. A comparison between the . actual size . of an object and the . size of its diagram/image. ; can be expressed as a ratio, fraction, percent, in words, or in a diagram. .. Ratio 1:2. Fraction ½ . All scale drawings . must . have a scale written on them. Scales are usually expressed as ratios.. Normally for maps and buildings the ratio:. Drawing length: Actual length. For maps the ratio is normally in the ratio:. Session . 2: Psychometric Analysis for Scale Validation. Nasir Mushtaq, MBBS, PhD. Department of Biostatistics and Epidemiology. College of Public Health. Department of Family and Community Medicine. in today’s Internet. Geoff Huston. APNIC . June 2016. What is being measured?. Clients who will perform DNSSEC validation of a domain name. Using RSA/SHA-1 as the crypto algorithm. Who will not resolve a badly-signed domain name.