\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{BlackoutWNCT} \pdfinfo{ /Title (glusterfs-useful-commands-and-terms.pdf) /Creator (Cheatography) /Author (BlackoutWNCT) /Subject (GlusterFS Useful Commands and Terms Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{24A335} \definecolor{LightBackground}{HTML}{F1F9F2} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{GlusterFS Useful Commands and Terms Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{BlackoutWNCT} via \textcolor{DarkBackground}{\uline{cheatography.com/33085/cs/10290/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}BlackoutWNCT \\ \uline{cheatography.com/blackoutwnct} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 20th December, 2016.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Source}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{} \tn % Row Count 0 (+ 0) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{The following information has been pulled from here: \seqsplit{https://gluster.readthedocs.io/en/latest/}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.09848 cm} x{1.64772 cm} x{1.8308 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Terminology}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{ACL}} & Access Control Lists & {\emph{Assign different perms for different users / groups}} \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} {\bf{Brick}} & & {\emph{Basic unit of storage. Represented by a directory on a server on the trusted pool}} \tn % Row Count 10 (+ 6) % Row 2 \SetRowColor{LightBackground} {\bf{Cluster}} & & {\emph{Group of Bricks pooled to form one mount point}} \tn % Row Count 13 (+ 3) % Row 3 \SetRowColor{white} {\bf{DFS}} & Distributed File System & {\emph{A FS which allows multiple clients to simultaniously access data}} \tn % Row Count 18 (+ 5) % Row 4 \SetRowColor{LightBackground} {\bf{FUSE}} & FileSystem in UserSpace & {\emph{Loadbale kernal module for unix-like OSs that allows non priveledged users to create their own FSs without editing Kernal code}} \tn % Row Count 26 (+ 8) % Row 5 \SetRowColor{white} {\bf{glusterd}} & & {\emph{Gluster management daemon that runs on all servers in the pool}} \tn % Row Count 30 (+ 4) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{1.09848 cm} x{1.64772 cm} x{1.8308 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Terminology (cont)}} \tn % Row 6 \SetRowColor{LightBackground} {\bf{MetaData}} & & {\emph{Data which proivdes info about one or more other pieces of data}} \tn % Row Count 5 (+ 5) % Row 7 \SetRowColor{white} {\bf{RAID}} & Redundant Array of Inexpensive Disks & {\emph{Combines multiple physical disks into a logical disk, most commonly for redundancy, however can also be for performance}} \tn % Row Count 13 (+ 8) % Row 8 \SetRowColor{LightBackground} {\bf{RRDNS}} & Round Robin Domain Name Service & {\emph{Distributes load across application servers. Implemented by creating multiple A Records with the same name and different IPs in the zone file of a DNS Server}} \tn % Row Count 23 (+ 10) % Row 9 \SetRowColor{white} {\bf{Trusted Storage Pool}} & & {\emph{Trusted Network of storage servers}} \tn % Row Count 26 (+ 3) % Row 10 \SetRowColor{LightBackground} {\bf{UserSpace}} & & {\emph{Application running in UserSpace don't interact directly with the HW, instead interacting via the Kernal. UserSpace apps are usually more portable than KernalSpace apps. Gluster is a UserSpace app}} \tn % Row Count 39 (+ 13) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{5.377cm}{x{1.09848 cm} x{1.64772 cm} x{1.8308 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Terminology (cont)}} \tn % Row 11 \SetRowColor{LightBackground} {\bf{Volume}} & & {\emph{Logical collection of Bricks}} \tn % Row Count 2 (+ 2) % Row 12 \SetRowColor{white} {\bf{Vol File}} & .vol File & {\emph{Config file used by the glusterfs process. Usually located at /var/lib/glusterd/vols/volume-name/}} \tn % Row Count 9 (+ 7) % Row 13 \SetRowColor{LightBackground} {\bf{Client}} & & {\emph{Machine which mounts the volume}} \tn % Row Count 12 (+ 3) % Row 14 \SetRowColor{white} {\bf{Server}} & & {\emph{Machine which hosts the FS where the data is stored}} \tn % Row Count 16 (+ 4) % Row 15 \SetRowColor{LightBackground} Source: & & \seqsplit{https://gluster.readthedocs.io/en/latest/Quick-Start-Guide/Terminologies/} \tn % Row Count 21 (+ 5) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}