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Building a Reliable Storage Stack
Building a Reliable Storage Stack Ph.D. Thesis David Cornelis van Moolenbroek Vrije Universiteit Amsterdam, 2016 This work was supported by the European Research Council Advanced Grant 227874. This work was carried out in the ASCI graduate school. ASCI dissertation series number 355. Copyright © 2016 by David Cornelis van Moolenbroek. ISBN 978-94-028-0240-5 Cover design by Eva Dienske. Printed by Ipskamp Printing. VRIJE UNIVERSITEIT Building a Reliable Storage Stack ACADEMISCH PROEFSCHRIFT ter verkrijging van de graad Doctor aan de Vrije Universiteit Amsterdam, op gezag van de rector magnificus prof.dr. V. Subramaniam, in het openbaar te verdedigen ten overstaan van de promotiecommissie van de Faculteit der Exacte Wetenschappen op maandag 12 september 2016 om 11.45 uur in de aula van de universiteit, De Boelelaan 1105 door David Cornelis van Moolenbroek geboren te Amsterdam promotor: prof.dr. A.S. Tanenbaum To my parents Acknowledgments This book marks the end of both a professional and a personal journey–one that has been long but rewarding. There are several people whom I would like to thank for accompanying and helping me along the way. First and foremost, I would like to thank my promotor, Andy Tanenbaum. While I was finishing up my master project under his supervision, he casually asked me “Would you like to be my Ph.D student?” during one of our meetings. I did not have to think long about the answer. Right from the start, he warned me that I would now have to conduct original research myself; only much later did I understand the full weight of this statement. -
Free Software Philosophy, History and Practice
Introduction (and some quick reminders) History and philosophy Legal aspects Free Software Philosophy, history and practice Luca Saiu [email protected] http://ageinghacker.net GNU Project Screencast version Paris, October 2014 Luca Saiu <[email protected]> Free Software — Philosophy, history and practice Introduction (and some quick reminders) History and philosophy Legal aspects Introducing myself I’m a computer scientist living and working somewhere around Paris... ...and a GNU maintainer. I’m also an associate member of the Free Software Foundation, a fellow of the Free Software Foundation Europe and an April adherent. So I’m not an impartial observer. Luca Saiu <[email protected]> Free Software — Philosophy, history and practice Introduction (and some quick reminders) History and philosophy Legal aspects Contents 1 Introduction (and some quick reminders) 2 History and philosophy The hacker community The GNU Project and the Free Software movement Linux and the Open Source movement 3 Legal aspects Copyright Free Software licenses Luca Saiu <[email protected]> Free Software — Philosophy, history and practice Introduction (and some quick reminders) History and philosophy Legal aspects Reminders about software — source code vs. machine code Source code vs. machine code Quick demo Luca Saiu <[email protected]> Free Software — Philosophy, history and practice Programs are linked to libraries static libraries shared libraries Libraries (or programs) request services to the kernel Programs invoke with other programs Programs communicate with other programs... ...on the same machine ...over the network We’re gonna see that this has legal implications. Introduction (and some quick reminders) History and philosophy Legal aspects Reminders about software — linking In practice, programs don’t exist in isolation. -
200 Modi Per Recuperare Un Hard Disk
Retrocomputer Magazine Anno 2 - Numero 9 - Maggio/Giugno 2007 In prova: Jurassic Olivetti Linea 1 News Esclusiva: I migliori PC di tutti i tempi Inoltre: Virtual Texas Instruments disk Laboratorio: 200 modi per recuperare un hard Jurassic News - Anno 2 - numero 9 - maggio/giugno 2007 Jurassic News Sommario - Maggio/Giugno 2007 Rivista aperiodica di Retro Computing Editoriale Apple Club Coordinatore editoriale Novità in vista, 3 Tutti i linguaggi di Apple Tullio Nicolussi [Tn] (parte 1), 62 Redazione Retrocomputing Sonicher [Sn] Esseri liberi, 4 Retro Linguaggi I migliori PC di tutti i tempi, 6 COBOL (parte 4), 74 Hanno collaborato a questo numero: Salvatore Macomer [Sm] Come eravamo Videoteca Lorenzo 2 [L2] Maggio 1982, 14 2010 l’anno del contatto, 72 Besdelsec [Bs] Giugno 1982, 15 Edicola Impaginazione e grafica Le prove di JN Anna [An] Pluto Journal, 66 Olivetti L1, 16 Nuova Elettronica Z80, 38 Diffusione Retro Software [email protected] Visicalc, 68 Il racconto La rivista viene diffusa in Una giornata di Ivan Ivanovich, formato PDF via Inter- Biblioteca 24 net. Il costo di un singolo Linux Bible, 80 numero è di Euro 2. 101 Reasons: To Switch to the Abbonamento annuale (6 Retro Riviste MAC, 82 numeri) Euro 6. Olivetti Research & Tecnology Arretrati Euro 2 a numero. Review , 36 L’intervista Contatti Conversazione con Gianfranco, [email protected] Laboratorio 84 200 modi per resuscitare un HD Copyright L’opinione I marchi citati sono di (parte 1), 50 Della Pirateria, 88 copyrights dei rispettivi proprietari. Emulazione La riproduzione con qual- Virtual TI 2.5, 48 BBS siasi mezzo di illustrazioni Scumm e ScummVM, 56 Posta e comunicazioni, 94 e di articoli pubblicati sulla rivista, nonché la loro tra- duzione, è riservata e non può avvenire senza espres- sa autorizzazione. -
The Flask Security Architecture: System Support for Diverse Security Policies
The Flask Security Architecture: System Support for Diverse Security Policies Ray Spencer Secure Computing Corporation Stephen Smalley, Peter Loscocco National Security Agency Mike Hibler, David Andersen, Jay Lepreau University of Utah http://www.cs.utah.edu/flux/flask/ Abstract and even many types of policies [1, 43, 48]. To be gen- erally acceptable, any computer security solution must Operating systems must be flexible in their support be flexible enough to support this wide range of security for security policies, providing sufficient mechanisms for policies. Even in the distributed environments of today, supporting the wide variety of real-world security poli- this policy flexibility must be supported by the security cies. Such flexibility requires controlling the propaga- mechanisms of the operating system [32]. tion of access rights, enforcing fine-grained access rights and supporting the revocation of previously granted ac- Supporting policy flexibility in the operating system is cess rights. Previous systems are lacking in at least one a hard problem that goes beyond just supporting multi- of these areas. In this paper we present an operating ple policies. The system must be capable of supporting system security architecture that solves these problems. fine-grained access controls on low-level objects used to Control over propagation is provided by ensuring that perform higher-level functions controlled by the secu- the security policy is consulted for every security deci- rity policy. Additionally, the system must ensure that sion. This control is achieved without significant perfor- the propagation of access rights is in accordance with mance degradation through the use of a security decision the security policy. -
Corso Di Chemiometria
Laurea Magistrale in Scienze Chimiche (LM-54) Anno Accademico 2020-2021 Corso di Chemiometria 4 crediti di lezione frontale (32 ore) 2 crediti di esercitazioni numeriche in aula (30 ore) Prof. Ilario Losito e-mail: [email protected] Sito Internet: http://puccini.chimica.uniba.it/~losito/indexChemiometria.htm A general definition for Chemometrics International Chemometrics Society (ICS) has given the following definition for Chemometrics: A chemical discipline that uses mathematical and statistical methods to: 1) design/select optimal procedures and experiments 2) provide maximum chemical information by analyzing data 3) give a graphical representation of this information This is the definition of Chemometrics given in the IUPAC Gold Book: The birth of Chemometrics was promoted by Svante Wold, from Umea University in Sweden and Bruce Kowalski, from University of Washington in Seattle, USA. In June 1974 they sent a letter to the Analytical Chemistry journal, proposing to call Chemometrics a scientific sector including all mathematic techniques aimed at elaborating and modelling ensembles of chemical data. They were also the founders of the International Chemometrics Society, sending a letter to all potentially interested colleagues and inviting them to participate to a newsletter. The letter sent by Wold and Kowalski ……………….. In December 1983 Prof. Forina from University of Genova became the President of the International Chemometrics Society: Prof. Forina was a pioneer in the field of Chemometrics and the author of computer programs for some of the earliest applications reported. PARVUS was the first computer module for Chemometrics application (pattern recognition) developed by Forina, recognized as a milestone in the history of this discipline: Trends in analytical chemistry vol 3, n.2, 1984 At the start of his work on Chemometrics Prof. -
Retro Magazine World 0
Més que un Magazine TABLE OF CONTENTS ◊ The Karnak MFP810 Calculator Pag. 3 "Més que un club" (more than a club) is the slogan proudly ◊ SEGA SATURN - a fantastic but Pag. 4 displayed by Barcelona FC in the stands of its football stadium. misunderstood platform! With equal pride we can say that RetroMagazine World is more ◊ Commodore 264 Series Pag. 6 than just a magazine reserved for a group of enthusiasts. ◊ OLIVETTI, when Italy was Silicon Valley Pag. 10 ◊ Olivetti PC128S Pag. 15 With all our initiatives (the site, "Press Play Again", etc.) and the ◊ RetroLiPS project presence on the most frequented social networks, it proves to be Pag. 19 a community full of life. ◊ Nobility of a humble flowchart Pag. 20 ◊ Introduction to Commodore C128 Pag. 26 The Editorial Board has recently seen an increase in the number graphics - part 2 of collaborators, starting with Mike "The biker" Novarina, ◊ Turbo Rascal SE - A complete cross- Pag. 30 Alessandro Albano and continuing with Francesco Coppola, platform framework for 8/16-bit Beppe Rinella, Christian Miglio (humbly apologizing if we have development forgotten someone else worthy of being remembered). ◊ ATARI - The origin of the myth Pag. 34 In particular, the young Francesco Coppola will take care of the ◊ Another World: a scary and magnificent Pag. 36 journey Atari world, while Beppe Rinella will enrich the articles of games by leaving the patterns of the usual review. ◊ Road Hunter - TI99/4A Pag. 40 ◊ Wizard of Wor - Commodore 64 Pag. 42 RetroMagazine World is appreciated because it is made by ◊ F-1 Spirit: the way to Formula-1 (MSX) Pag. -
Comunità Per Le Libere Attività Culturali Associazione Di Associazioni Senza Scopo Di Lucro – C
Comunità per le Libere Attività Culturali Associazione di Associazioni Senza Scopo di Lucro – C. F. 92000330289 Segreteria Generale, Laboratorio Culturale, Biblioteca e Centro Documentazione Via Alvise Cornaro 1 B, 35128 Padova – Tel. +393288151502 www.clacpd.org Spett.le Settore Patrimonio e Partecipazioni del Comune di Padova Ufficio Postale Padova Centro Casella Postale Aperta 35122 Padova e, p. c., Settore Edilizia Pubblica ed Impianti Sportivi del Comune di Padova c. a. Arch. Domenico Lo Bosco p. c., Assessore alla Cultura e Musei, Edilizia M onumentale e Turismo del Comune di Padova dott. Andrea Colasio p. c., Assessore all’Ambiente, Verde, Parchi e Agricoltura del Comune di Padova dott.ssa Chiara Gallani p. c., Assessore al Patrimonio, Edilizia Comunale, Valorizzazione della Cinta Muraria e del Parco delle Mura del Comune di Padova dott. Andrea Micalizzi p. c., Soprintendenza Archeologia, Belle Arti Paesaggio per l’area metropolitana di Venezia e le province di Βelluno, Padova e Treviso c. a. Arch. Andrea Alberti Via Aquileia, 7 35139 Padova p. c., Comitato Mura di Padova Via Raggio di Sole, 2 35138 Padova p. c., Associazioni Consociate alla CLAC Via Alvise Cornaro, 1 B 35128 Padova p. c., Avvocato Carlotta Traballi Riviera Tiso da Camposampiero, 29 35122 Padova RACCOMANDATA A. R. Padova, 9 maggio 2018 Oggetto: Vs. Richiesta di sgombero del materiale presso l’ex Macello di Via Cornaro del 07/05/2018 Pagina 1 di 3 Con grande rammarico constatiamo con quale intempestività ci raggiunge la Vs. in oggetto proprio nel momento in cui, da alcune settimane a questa parte, siamo tornati a discutere e fare nuove proposte sia con gli Assessori che con gli Uffici del Comune, tra cui il Vostro, proprio sulla destinazione dell’intera area in oggetto. -
Bushnell Family Genealogy, 1945
BUSHNELL FAMILY GENEALOGY Ancestry and Posterity of FRANCIS BUSHNELL (1580 - 1646) of Horsham, England And Guilford, Connecticut Including Genealogical Notes of other Bushnell Families, whose connections with this branch of the family tree have not been determined. Compiled and written by George Eleazer Bushnell Nashville, Tennessee 1945 Bushnell Genealogy 1 The sudden and untimely death of the family historian, George Eleazer Bushnell, of Nashville, Tennessee, who devoted so many years to the completion of this work, necessitated a complete change in its publication plans and we were required to start anew without familiarity with his painstaking work and vast acquaintance amongst the members of the family. His manuscript, while well arranged, was not yet ready for printing. It has therefore been copied, recopied and edited, However, despite every effort, prepublication funds have not been secured to produce the kind of a book we desire and which Mr. Bushnell's painstaking work deserves. His material is too valuable to be lost in some library's manuscript collection. It is a faithful record of the Bushnell family, more complete than anyone could have anticipated. Time is running out and we have reluctantly decided to make the best use of available funds by producing the "book" by a process of photographic reproduction of the typewritten pages of the revised and edited manuscript. The only deviation from the original consists in slight rearrangement, minor corrections, additional indexing and numbering. We are proud to thus assist in the compiler's labor of love. We are most grateful to those prepublication subscribers listed below, whose faith and patience helped make George Eleazer Bushnell's book thus available to the Bushnell Family. -
AHS 02 02 Content 20140102
Advances in Historical Studies, 2013, 2, 19-104 Published Online June 2013 in SciRes (http://www.scirp.org/journal/ahs/) TABLE OF CONTENTS Volume 2 Number 2 June 2013 Letter from Chief-Managing Editorial Staff ARTICLES The Roots of the Theoretical Models of the Nanotechnoscience in the Electric Circuit Theory V. Gorokhov……………………………………………………………..…………………………………………………………………………19 Reflections on the Scientific Conceptual Streams in Leonardo da Vinci and His Relationship with Luca Pacioli R. Pisano……………………………………………………………………………………………………………………………………………32 Reclaiming Realism for the Left: Gar Alperovitz and the Decision to Use the Atomic Bomb P. N. Kirstein……………………………………………………………………………………………………………………….………………46 MISCELLANEA Megalithism and Tribal Ritualism: A Passage through the Kurumbas of Attappadi M. Poyil…………………………………………………………………………………………………………………………………….………54 Temple as the Site of Struggle: Social Reform, Religious Symbols and the Politics of Nationalism in Kerala M. R. Manmathan……………………………………………………………………………………………………………..……………………57 Communities Inferred from the Books of Samuel in the Old Testament of the Bible W. Hu………………………………………………………………………………………………………………………………………………70 Les Châteaux de Landiras et de Montferrand and Their Seigneurial Families D. A. Bailey………………………………………………………………………………………………………...………………………………81 ESSAY REVIEW Borderland Theory as a Conceptual Framework for Comparative Local US and Canadian History C. Parham…………………………………………………………………………………………………………………………..………………94 Jacket: L’histoire comme images d’autres mondes [The history as images -
Olivetti M20 News
Retrocomputer Magazine Anno 2 - Numero 10 - Luglio/Agosto 2007 Emulazione: HP 41C Prova hardware: JurassicOlivetti M20 News 100 modi Apple Club per recuperare un hard disk (parte 2) La Rivincita di un piccolo MAc SE Jurassic News - Anno 2 - numero 10 - luglio/agosto 2007 Jurassic News Sommario - Luglio/Agosto 2007 Rivista aperiodica di Retro-computing Editoriale Coordinatore editoriale L’abbondanza e la carestia, 3 Tullio Nicolussi [Tn] Redazione Sonicher [Sn] Retrocomputing [email protected] Retro Linguaggi L’archivista, 4 COBOL (parte 5), 44 Hanno collaborato a questo numero: Come eravamo Emulazione Salvatore Macomer [Sm] Luglio/Agosto 1992, 12 HP41E, 50 Lorenzo 2 [L2] Besdelsec [Bs] Maurizio Martone [mm] Le prove di JN Retro Code Olivetti M20, 14 Bioritmi, 52 Impaginazione e grafica Anna Il racconto Apple Club Il Mega Direttore Galattico, 24 Tutti i linguaggi di Apple Diffusione [email protected] (parte 2), 56 La rivista viene diffusa in Retro Riviste Retro Using formato PDF via Inter- Nibble Magazine, 28 Un MAC SE/30 resuscita, 60 net. Il costo di un singolo numero è di Euro 2. Abbonamento annuale (6 Una visita a... Biblioteca numeri) Euro 6. Marzaglia - maggio 2007, 32 Il nuovo manuale Z80, 62 Arretrati Euro 2 a numero. BBS Contatti Posta, 64 [email protected] Laboratorio 200 modi per resuscitare un HD Anteprima Copyright (parte 2), 34 I marchi citati sono di 66 copyrights dei rispettivi proprietari. La riproduzione con qual- siasi mezzo di illustrazioni e di articoli pubblicati sulla rivista, nonché la loro tra- duzione, è riservata e non può avvenire senza espres- In Copertina sa autorizzazione. -
The Flask Security Architecture: System Support for Diverse Security Policies
The Flask Security Architecture: System Support for Diverse Security Policies Ray Spencer Secure Computing Corporation Stephen Smalley, Peter Loscocco National Security Agency Mike Hibler, David Andersen, Jay Lepreau University of Utah http://www.cs.utah.edu/flux/flask/ Abstract and even many types of policies [1, 43, 48]. To be gen erally acceptable, any computer security solution must Operating systems must be flexible in their support be flexible enough to support this wide range of security for security policies, providing sufficient mechanisms for policies. Even in the distributed environments of today, supporting the wide variety of real-world security poli this policy flexibility must be supported by the security cies. Such flexibility requires controlling the propaga mechanisms of the operating system [32]. tion of access rights, enforcing fine-grained access rights and supporting the revocation of previously granted ac Supporting policy flexibility in the operating system is cess rights. Previous systems are lacking in at least one a hard problem that goes beyond just supporting multi of these areas. In this paper we present an operating ple policies. The system must be capable of supporting system security architecture that solves these problems. fine-grained access controls on low-level objects used to Control over propagation is provided by ensuring that perform higher-level functions controlled by the secu the security policy is consulted for every security deci rity policy. Additionally, the system must ensure that sion. This control is achieved without significant perfor the propagation of access rights is in accordance with mance degradation through the use of a security decision the security policy. -
Computer Connections for Gifted Children and Youth
DOCUMENT RESUME ED 209 889 EC 140 606 AUTHOP Namzaro, Jean N.,Ed. TITLE Computer Connections for Gifted Childrcz and Youth. INSTITUTION ERIC Clearinghouse on Handicapped and Gifted Children, Reston, Va. SPONS AGENCY National Inst. of Education (ED), Washington, D.C. PE?011** NO ISBN-0-96586-119-6 PUB DATE 81 GPANT 400-76-0119 NOT! 97p. AVAILABLE FROMERIC Clearinghouse or. Handicapped and Gifted Children, The Council for Exceptional Children, 1920 Association Dr., Reston, VA 22091 ($1.CC). EDPS PRICE MF01/PC04 Plus Postage. DESCRIPTORS *Computer Assisted Instruction; *Computers; Elementary Secondary Education; *Gifted; *Microcomputers; Program Descriptions; Programing; *Tal ent ABSIPACT Written by computer specialists, teachers, parents, amid students, the 23 articles emphasize the role computers play in the development of thinking, problem solving, and creativity in gifted and talented students. Articles have the following titles and authors: "Computers and Computer Cultures" (S. Papert) ; "Classroom Computers-- Beyond the 3 R's" (F. Bell): "Reflections of a Computer Language Nut" (S. Bloch) ;"It Started with Gamps" (C. Karnes) ;"Two Programs from a Young Eighth Grader"(S. Bahcall, H. Nelson) : "Teaching Parents About Using Microcomputers"(T. Dwyer, M. Critchfield) ;"Children and Home ComputersSome Observations on the First Generation" (B. Banet) :"An Apple a Day Keeps a Kid Cccupied" (P. Buszta) ;"Microcomputers for Gifted Microtots"(A. Coorly) ;"Kids and ComputersThe Future Is Today" (S. Larsen) ;"Micros 'GOTO' School" (D. Piele) ;"The Hampton City Schools Computer Program" (N. Harkavv) ;"The Paducah Tilghman High School for Gifted StuderJ.s" (S. Davis, P. Frothingham): "Computers... pre All Dinosaurs read?" (D. Glover) ;"The Talcott Mountain Science Center" (D.Barstow) : "Computerorics--A Course in Computer Literacy" (P.