mirror of https://github.com/schoebel/mars
doc: factor out common introduction
This commit is contained in:
Thomas Schoebel-Theuer
Thomas Schoebel-Theuer
parent
f7818f2273
commit
a7aebf770a
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@ -196,80 +196,17 @@ sloppy
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\end_inset
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MARS
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\family default
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is a block-level storage replication system for long distances / flaky
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networks under GPL.
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It runs as a Linux kernel module.
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The sysadmin interface is similar to DRBD
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\begin_inset Foot
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status open
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\begin_layout Plain Layout
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Registered trademarks are the property of their respective owner.
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\end_layout
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\begin_inset CommandInset include
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LatexCommand input
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preview true
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filename "common-introduction.lyx"
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\end_inset
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, but its internal engine is completely different from DRBD: it works with
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\series bold
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transaction logging
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\series default
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, similar to some database systems.
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\end_layout
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\begin_layout Abstract
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Therefore, MARS can provide stronger
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\series bold
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consistency guarantees
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\series default
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.
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Even in case of network bottlenecks / problems / failures, the secondaries
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may become outdated (reflect an elder state), but never become inconsistent.
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In contrast to DRBD, MARS preserves the
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\series bold
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order of write operations
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\series default
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even when the network is flaky (
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\series bold
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Anytime Consistency
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\series default
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).
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\end_layout
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\begin_layout Abstract
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The current version of MARS supports
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\begin_inset Formula $k>2$
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\end_inset
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replicas and works
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\series bold
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asynchronously
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\series default
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.
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Therefore, application performance is completely decoupled from any network
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problems.
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Future versions are planned to also support synchronous or near-synchronous
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modes.
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\end_layout
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\begin_layout Abstract
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MARS supports a new method for building Cloud Storage / Software Defined
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Storage, called
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\series bold
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LV Football
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\series default
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.
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\end_layout
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\begin_layout Abstract
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It comes with some automation scripts, leading to a similar functionality
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than Kubernetes, but devoted to stateful LVs over
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\series bold
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virtual LVM pools
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\series default
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in the petabytes range.
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\end_layout
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\begin_layout Abstract
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@ -0,0 +1,136 @@
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#LyX 2.3 created this file. For more info see http://www.lyx.org/
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\lyxformat 544
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\begin_document
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\begin_header
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\save_transient_properties true
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\origin unavailable
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\textclass scrreprt
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\begin_preamble
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\usepackage{listings}
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\end_preamble
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\options abstracton,dvipsnames
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\use_default_options true
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\begin_modules
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customHeadersFooters
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enumitem
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fixltx2e
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\end_modules
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\maintain_unincluded_children false
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\language english
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\language_package default
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\inputencoding auto
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\fontencoding global
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\font_roman "default" "default"
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\font_sans "default" "default"
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\font_typewriter "default" "default"
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\font_math "auto" "auto"
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\font_default_family rmdefault
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\use_non_tex_fonts false
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\font_sc false
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\font_osf false
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\font_sf_scale 100 100
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\font_tt_scale 100 100
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\use_microtype false
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\use_dash_ligatures false
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\graphics default
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\default_output_format default
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\output_sync 0
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\bibtex_command default
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\index_command default
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\paperfontsize 10
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\spacing single
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\use_hyperref true
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\pdf_title "MARS Manual"
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\pdf_author "Thomas Schöbel-Theuer"
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\pdf_bookmarks true
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\pdf_bookmarksnumbered false
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\pdf_bookmarksopen false
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\pdf_bookmarksopenlevel 1
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\pdf_breaklinks true
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\pdf_pdfborder true
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\pdf_colorlinks true
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\pdf_backref false
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\pdf_pdfusetitle true
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\papersize a4paper
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\use_geometry true
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\use_package amsmath 1
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\use_package amssymb 1
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\use_package cancel 1
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\use_package esint 1
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\use_package mathdots 1
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\use_package mathtools 1
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\use_package mhchem 1
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\use_package stackrel 1
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\use_package stmaryrd 1
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\use_package undertilde 1
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\cite_engine basic
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\cite_engine_type default
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\biblio_style plain
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\use_bibtopic false
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\use_indices false
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\paperorientation portrait
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\suppress_date false
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\justification true
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\use_refstyle 1
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\use_minted 0
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\index Index
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\shortcut idx
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\color #008000
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\end_index
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\leftmargin 3.7cm
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\topmargin 2.7cm
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\rightmargin 2.8cm
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\bottommargin 2.3cm
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\secnumdepth 3
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\tocdepth 3
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\paragraph_separation indent
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\paragraph_indentation default
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\is_math_indent 0
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\math_numbering_side default
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\quotes_style english
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\dynamic_quotes 0
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\papercolumns 1
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\papersides 2
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\paperpagestyle headings
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\tracking_changes false
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\output_changes false
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\html_math_output 0
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\html_css_as_file 0
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\html_be_strict false
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\end_header
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\begin_body
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\begin_layout Chapter
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GNU Free Documentation License
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\begin_inset CommandInset label
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LatexCommand label
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name "chap:GNU-FDL"
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\end_inset
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\end_layout
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\begin_layout Standard
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\noindent
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\family typewriter
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\size footnotesize
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\begin_inset ERT
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status open
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\begin_layout Plain Layout
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\backslash
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lstinputlisting{fdl.txt}
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\end_layout
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\end_inset
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\end_layout
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\end_body
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\end_document
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@ -137,39 +137,14 @@ Introduction
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\end_layout
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\begin_layout Standard
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MARS is a block-level storage replication system for long distances / flaky
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networks under GPL.
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\end_layout
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\begin_inset CommandInset include
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LatexCommand input
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preview true
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filename "common-introduction.lyx"
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\begin_layout Standard
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It runs as a Linux kernel module.
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The sysadmin interface is similar to DRBD8, but its internal engine is
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completely different from DRBD: it works with transaction logging, similar
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to some database systems.
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\end_layout
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\end_inset
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\begin_layout Standard
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Therefore, MARS can provide stronger consistency guarantees.
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Even in case of network bottlenecks / problems / failures, the secondaries
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may become outdated (reflect an elder state), but never become inconsistent.
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In contrast to DRBD, MARS preserves the order of write operations even
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when the network is flaky (Anytime Consistency).
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\end_layout
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\begin_layout Standard
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The current version of MARS supports k > 2 replicas and works asynchronously.
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Therefore, application performance is completely decoupled from any network
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problems.
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Future versions are planned to also support synchronous or near-synchronous
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modes.
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\end_layout
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\begin_layout Standard
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MARS supports a new method for building Cloud Storage / Software Defined
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Storage, called LV Football.
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It comes with some automation scripts, leading to a similar functionality
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than Kubernetes, but devoted to stateful LVs over virtual LVM pools in
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the petabytes range.
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\end_layout
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\begin_layout Section*
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