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Understanding System Administrators' Work

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Understanding System Administrators' Work UNDERSTANDING SYSTEM ADMINISTRATORS’ WORK PRACTICES AND THE ROLE FOR ENHANCED VISUALIZATIONS IN THEIR TOOLS by Jeevitha Mahendiran Submitted in partial fulfilment of the requirements for the degree of Master of Science at Dalhousie University Halifax, Nova Scotia February 2014 © Copyright by Jeevitha Mahendiran, 2014 DEDICATION I dedicate this thesis to My Dad, Mahendiran Murugan, who stood by me to live my dream & My Mom, Parimala Mahendiran, who always kept me grounded. ii TABLE OF CONTENTS 55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555551 555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555551/ 55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555551/# 555555555555555555555555555555555555555555555555555555555555555555555555555555555555551/## 55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555551/### < 55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555< <5<*,#(1#,-#(!,+"55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555= 2/2/2'&$$!()&'////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////3 2/2/3,%!$&#)&&#((($')!.($##$$!'//////////////////////////////////////////////////////////////////3 2/2/4$)'$')!.($##,'(#'&//////////////////////////////////////////////////////////////////////////////3 2/2/5$%$&')!.($#///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////4 2/2/6$)'$#(&# #$&"($#$)(&#($"#'////////////////////////////////////////////////4 2/2/7'$#'-')!.($#'(!!$+#%!-#('$"#$$& ///////////4 <5=)(-+#.-#)(555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555? <5>/+/#0) -"",#,5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555? = 5555555555555555555555555555A =5< )+%).-#() 2,'#(,5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555A =5= #,.&#3-#)(5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555D 3/3/2(')!.($#/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////21 3/3/3 #$&"($#')!.($#//////////////////////////////////////////////////////////////////////////////////////////////////////////////22 =5> **&#-#)(,) #,.&#3-#)(5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555<< 3/4/2 #$+!')!.($#////////////////////////////////////////////////////////////////////////////////////////////////////////////////22 3/4/3(&(-')!.($#//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////22 3/4/4$#%(')!.($#//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////22 3/4/5&$)(')!.($#//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////23 3/4/6-'("')!.($#////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////23 3/4/7&$''')!.($#///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////24 iii 3/4/8(&)()&')!.($#///////////////////////////////////////////////////////////////////////////////////////////////////////////////////24 3/4/9')!#!-('//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////24 =5? #,.&#3-#)(#(2,'#())&,55555555555555555555555555555555555555555555555555555555555555555555555555555555555<> =5@ .''+255555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555<B > 555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555<D >5< ,+"$-#/55555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555<D >5= ,+".,-#)(,555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555<D >5> ,+"**+)"5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555=; 4/4/2 &##)&*///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////31 >5? 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