mirror of https://github.com/schoebel/mars
doc: factor out common front matter
This commit is contained in:
Thomas Schoebel-Theuer
Thomas Schoebel-Theuer
parent
55a15bc4cf
commit
3713c25b15
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@ -0,0 +1,332 @@
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Multiversion Asynchronous Replicated Storage
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Thomas Schöbel-Theuer (
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tst@1und1.de
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Version 0.1a-72
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Copyright (C) 2013-16 Thomas Schöbel-Theuer
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Copyright (C) 2013-16 1&1 Internet AG (see
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status open
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http://www.1und1.de
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shortly called 1&1 in the following).
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\size footnotesize
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Permission is granted to copy, distribute and/or modify this document under
|
||||
the terms of the GNU Free Documentation License, Version 1.3 or any later
|
||||
version published by the Free Software Foundation; with no Invariant Sections,
|
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|
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\backslash
|
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sloppy
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
MARS
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||||
\family default
|
||||
is a block-level storage replication system for long distances / flaky
|
||||
networks under GPL.
|
||||
It runs as a Linux kernel module.
|
||||
The sysadmin interface is similar to DRBD
|
||||
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status open
|
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Registered trademarks are the property of their respective owner.
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|
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|
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|
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, but its internal engine is completely different from DRBD: it works with
|
||||
|
||||
\series bold
|
||||
transaction logging
|
||||
\series default
|
||||
, similar to some database systems.
|
||||
\end_layout
|
||||
|
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\begin_layout Abstract
|
||||
Therefore, MARS can provide stronger
|
||||
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|
||||
consistency guarantees
|
||||
\series default
|
||||
.
|
||||
Even in case of network bottlenecks / problems / failures, the secondaries
|
||||
may become outdated (reflect an elder state), but never become inconsistent.
|
||||
In contrast to DRBD, MARS preserves the
|
||||
\series bold
|
||||
order of write operations
|
||||
\series default
|
||||
even when the network is flaky (
|
||||
\series bold
|
||||
Anytime Consistency
|
||||
\series default
|
||||
).
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
The current version of MARS supports
|
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\begin_inset Formula $k>2$
|
||||
\end_inset
|
||||
|
||||
replicas and works
|
||||
\series bold
|
||||
asynchronously
|
||||
\series default
|
||||
.
|
||||
Therefore, application performance is completely decoupled from any network
|
||||
problems.
|
||||
Future versions are planned to also support synchronous or near-synchronous
|
||||
modes.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
MARS supports a new method for building Cloud Storage / Software Defined
|
||||
Storage, called
|
||||
\series bold
|
||||
LV Football
|
||||
\series default
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
It comes with some automation scripts, leading to a similar functionality
|
||||
than Kubernetes, but devoted to stateful LVs over
|
||||
\series bold
|
||||
virtual LVM pools
|
||||
\series default
|
||||
in the petabytes range.
|
||||
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|
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filename images/earth-mars-transfer.fig
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width 70col%
|
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@ -101,103 +101,7 @@ fixltx2e
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\begin_body
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\begin_layout Title
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\family typewriter
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MARS User Manual
|
||||
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|
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Multiversion Asynchronous Replicated Storage
|
||||
\begin_inset Newline newline
|
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\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
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|
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|
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|
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|
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\end_inset
|
||||
|
||||
|
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|
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filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
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|
||||
|
||||
\begin_layout Author
|
||||
Thomas Schöbel-Theuer (
|
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|
||||
tst@1und1.de
|
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\family default
|
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)
|
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|
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|
||||
Version 0.1a-72
|
||||
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|
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|
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|
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Copyright (C) 2013-16 Thomas Schöbel-Theuer
|
||||
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|
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\end_inset
|
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|
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Copyright (C) 2013-16 1&1 Internet AG (see
|
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|
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status open
|
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|
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|
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|
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http://www.1und1.de
|
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|
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|
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|
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|
||||
shortly called 1&1 in the following).
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
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|
||||
|
||||
\size footnotesize
|
||||
Permission is granted to copy, distribute and/or modify this document under
|
||||
the terms of the GNU Free Documentation License, Version 1.3 or any later
|
||||
version published by the Free Software Foundation; with no Invariant Sections,
|
||||
no Front-Cover Texts, and no Back-Cover Texts.
|
||||
A copy of the license is included in the section entitled
|
||||
\begin_inset Quotes eld
|
||||
\end_inset
|
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|
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|
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LatexCommand nameref
|
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reference "chap:GNU-FDL"
|
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|
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|
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|
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|
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|
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.
|
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|
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|
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\begin_layout Abstract
|
||||
|
||||
\family typewriter
|
||||
\begin_layout Standard
|
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\begin_inset ERT
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status open
|
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@ -205,134 +109,20 @@ status open
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\backslash
|
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sloppy
|
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title{Football User Manual}
|
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\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
MARS
|
||||
\family default
|
||||
is a block-level storage replication system for long distances / flaky
|
||||
networks under GPL.
|
||||
It runs as a Linux kernel module.
|
||||
The sysadmin interface is similar to DRBD
|
||||
\begin_inset Foot
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
Registered trademarks are the property of their respective owner.
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
, but its internal engine is completely different from DRBD: it works with
|
||||
|
||||
\series bold
|
||||
transaction logging
|
||||
\series default
|
||||
, similar to some database systems.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
Therefore, MARS can provide stronger
|
||||
\series bold
|
||||
consistency guarantees
|
||||
\series default
|
||||
.
|
||||
Even in case of network bottlenecks / problems / failures, the secondaries
|
||||
may become outdated (reflect an elder state), but never become inconsistent.
|
||||
In contrast to DRBD, MARS preserves the
|
||||
\series bold
|
||||
order of write operations
|
||||
\series default
|
||||
even when the network is flaky (
|
||||
\series bold
|
||||
Anytime Consistency
|
||||
\series default
|
||||
).
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
The current version of MARS supports
|
||||
\begin_inset Formula $k>2$
|
||||
\end_inset
|
||||
|
||||
replicas and works
|
||||
\series bold
|
||||
asynchronously
|
||||
\series default
|
||||
.
|
||||
Therefore, application performance is completely decoupled from any network
|
||||
problems.
|
||||
Future versions are planned to also support synchronous or near-synchronous
|
||||
modes.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
MARS supports a new method for building Cloud Storage / Software Defined
|
||||
Storage, called
|
||||
\series bold
|
||||
LV Football
|
||||
\series default
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
It comes with some automation scripts, leading to a similar functionality
|
||||
than Kubernetes, but devoted to stateful LVs over
|
||||
\series bold
|
||||
virtual LVM pools
|
||||
\series default
|
||||
in the petabytes range.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
\paragraph_spacing double
|
||||
\noindent
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
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|
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|
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|
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||||
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|
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|
||||
|
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\begin_inset Box Frameless
|
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position "c"
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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separation "3pt"
|
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shadowsize "4pt"
|
||||
framecolor "black"
|
||||
backgroundcolor "none"
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
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|
||||
\begin_layout Standard
|
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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-front-matter.lyx"
|
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|
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|
|||
|
|
@ -101,103 +101,7 @@ fixltx2e
|
|||
|
||||
\begin_body
|
||||
|
||||
\begin_layout Title
|
||||
|
||||
\family typewriter
|
||||
MARS Manual
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Subtitle
|
||||
Multiversion Asynchronous Replicated Storage
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
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\end_inset
|
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|
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|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Author
|
||||
Thomas Schöbel-Theuer (
|
||||
\family typewriter
|
||||
tst@1und1.de
|
||||
\family default
|
||||
)
|
||||
\end_layout
|
||||
|
||||
\begin_layout Date
|
||||
Version 0.1a-72
|
||||
\end_layout
|
||||
|
||||
\begin_layout Lowertitleback
|
||||
\noindent
|
||||
Copyright (C) 2013-16 Thomas Schöbel-Theuer
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
Copyright (C) 2013-16 1&1 Internet AG (see
|
||||
\begin_inset Flex URL
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
|
||||
http://www.1und1.de
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
shortly called 1&1 in the following).
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\size footnotesize
|
||||
Permission is granted to copy, distribute and/or modify this document under
|
||||
the terms of the GNU Free Documentation License, Version 1.3 or any later
|
||||
version published by the Free Software Foundation; with no Invariant Sections,
|
||||
no Front-Cover Texts, and no Back-Cover Texts.
|
||||
A copy of the license is included in the section entitled
|
||||
\begin_inset Quotes eld
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset CommandInset ref
|
||||
LatexCommand nameref
|
||||
reference "chap:GNU-FDL"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Quotes erd
|
||||
\end_inset
|
||||
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
|
||||
\family typewriter
|
||||
\begin_layout Standard
|
||||
\begin_inset ERT
|
||||
status open
|
||||
|
||||
|
|
@ -205,132 +109,7 @@ status open
|
|||
|
||||
|
||||
\backslash
|
||||
sloppy
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
MARS
|
||||
\family default
|
||||
is a block-level storage replication system for long distances / flaky
|
||||
networks under GPL.
|
||||
It runs as a Linux kernel module.
|
||||
The sysadmin interface is similar to DRBD
|
||||
\begin_inset Foot
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
Registered trademarks are the property of their respective owner.
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
, but its internal engine is completely different from DRBD: it works with
|
||||
|
||||
\series bold
|
||||
transaction logging
|
||||
\series default
|
||||
, similar to some database systems.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
Therefore, MARS can provide stronger
|
||||
\series bold
|
||||
consistency guarantees
|
||||
\series default
|
||||
.
|
||||
Even in case of network bottlenecks / problems / failures, the secondaries
|
||||
may become outdated (reflect an elder state), but never become inconsistent.
|
||||
In contrast to DRBD, MARS preserves the
|
||||
\series bold
|
||||
order of write operations
|
||||
\series default
|
||||
even when the network is flaky (
|
||||
\series bold
|
||||
Anytime Consistency
|
||||
\series default
|
||||
).
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
The current version of MARS supports
|
||||
\begin_inset Formula $k>2$
|
||||
\end_inset
|
||||
|
||||
replicas and works
|
||||
\series bold
|
||||
asynchronously
|
||||
\series default
|
||||
.
|
||||
Therefore, application performance is completely decoupled from any network
|
||||
problems.
|
||||
Future versions are planned to also support synchronous or near-synchronous
|
||||
modes.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
MARS supports a new method for building Cloud Storage / Software Defined
|
||||
Storage, called
|
||||
\series bold
|
||||
LV Football
|
||||
\series default
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
It comes with some automation scripts, leading to a similar functionality
|
||||
than Kubernetes, but devoted to stateful LVs over
|
||||
\series bold
|
||||
virtual LVM pools
|
||||
\series default
|
||||
in the petabytes range.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
\paragraph_spacing double
|
||||
\noindent
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Box Frameless
|
||||
position "c"
|
||||
hor_pos "c"
|
||||
has_inner_box 1
|
||||
inner_pos "c"
|
||||
use_parbox 0
|
||||
use_makebox 1
|
||||
width "100col%"
|
||||
special "none"
|
||||
height "1in"
|
||||
height_special "totalheight"
|
||||
thickness "0.4pt"
|
||||
separation "3pt"
|
||||
shadowsize "4pt"
|
||||
framecolor "black"
|
||||
backgroundcolor "none"
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
title{MARS Architecture Guide}
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
|
@ -339,8 +118,10 @@ status open
|
|||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset CommandInset toc
|
||||
LatexCommand tableofcontents
|
||||
\begin_inset CommandInset include
|
||||
LatexCommand input
|
||||
preview true
|
||||
filename "common-front-matter.lyx"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@ customHeadersFooters
|
|||
enumitem
|
||||
fixltx2e
|
||||
\end_modules
|
||||
\maintain_unincluded_children false
|
||||
\maintain_unincluded_children true
|
||||
\language english
|
||||
\language_package default
|
||||
\inputencoding auto
|
||||
|
|
@ -101,103 +101,7 @@ fixltx2e
|
|||
|
||||
\begin_body
|
||||
|
||||
\begin_layout Title
|
||||
|
||||
\family typewriter
|
||||
MARS User Manual
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Subtitle
|
||||
Multiversion Asynchronous Replicated Storage
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Author
|
||||
Thomas Schöbel-Theuer (
|
||||
\family typewriter
|
||||
tst@1und1.de
|
||||
\family default
|
||||
)
|
||||
\end_layout
|
||||
|
||||
\begin_layout Date
|
||||
Version 0.1a-72
|
||||
\end_layout
|
||||
|
||||
\begin_layout Lowertitleback
|
||||
\noindent
|
||||
Copyright (C) 2013-16 Thomas Schöbel-Theuer
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
Copyright (C) 2013-16 1&1 Internet AG (see
|
||||
\begin_inset Flex URL
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
|
||||
http://www.1und1.de
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
shortly called 1&1 in the following).
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\size footnotesize
|
||||
Permission is granted to copy, distribute and/or modify this document under
|
||||
the terms of the GNU Free Documentation License, Version 1.3 or any later
|
||||
version published by the Free Software Foundation; with no Invariant Sections,
|
||||
no Front-Cover Texts, and no Back-Cover Texts.
|
||||
A copy of the license is included in the section entitled
|
||||
\begin_inset Quotes eld
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset CommandInset ref
|
||||
LatexCommand nameref
|
||||
reference "chap:GNU-FDL"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Quotes erd
|
||||
\end_inset
|
||||
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
|
||||
\family typewriter
|
||||
\begin_layout Standard
|
||||
\begin_inset ERT
|
||||
status open
|
||||
|
||||
|
|
@ -205,134 +109,20 @@ status open
|
|||
|
||||
|
||||
\backslash
|
||||
sloppy
|
||||
title{MARS for Kernel Developers}
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
MARS
|
||||
\family default
|
||||
is a block-level storage replication system for long distances / flaky
|
||||
networks under GPL.
|
||||
It runs as a Linux kernel module.
|
||||
The sysadmin interface is similar to DRBD
|
||||
\begin_inset Foot
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
Registered trademarks are the property of their respective owner.
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
, but its internal engine is completely different from DRBD: it works with
|
||||
|
||||
\series bold
|
||||
transaction logging
|
||||
\series default
|
||||
, similar to some database systems.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
Therefore, MARS can provide stronger
|
||||
\series bold
|
||||
consistency guarantees
|
||||
\series default
|
||||
.
|
||||
Even in case of network bottlenecks / problems / failures, the secondaries
|
||||
may become outdated (reflect an elder state), but never become inconsistent.
|
||||
In contrast to DRBD, MARS preserves the
|
||||
\series bold
|
||||
order of write operations
|
||||
\series default
|
||||
even when the network is flaky (
|
||||
\series bold
|
||||
Anytime Consistency
|
||||
\series default
|
||||
).
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
The current version of MARS supports
|
||||
\begin_inset Formula $k>2$
|
||||
\end_inset
|
||||
|
||||
replicas and works
|
||||
\series bold
|
||||
asynchronously
|
||||
\series default
|
||||
.
|
||||
Therefore, application performance is completely decoupled from any network
|
||||
problems.
|
||||
Future versions are planned to also support synchronous or near-synchronous
|
||||
modes.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
MARS supports a new method for building Cloud Storage / Software Defined
|
||||
Storage, called
|
||||
\series bold
|
||||
LV Football
|
||||
\series default
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
It comes with some automation scripts, leading to a similar functionality
|
||||
than Kubernetes, but devoted to stateful LVs over
|
||||
\series bold
|
||||
virtual LVM pools
|
||||
\series default
|
||||
in the petabytes range.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
\paragraph_spacing double
|
||||
\noindent
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Box Frameless
|
||||
position "c"
|
||||
hor_pos "c"
|
||||
has_inner_box 1
|
||||
inner_pos "c"
|
||||
use_parbox 0
|
||||
use_makebox 1
|
||||
width "100col%"
|
||||
special "none"
|
||||
height "1in"
|
||||
height_special "totalheight"
|
||||
thickness "0.4pt"
|
||||
separation "3pt"
|
||||
shadowsize "4pt"
|
||||
framecolor "black"
|
||||
backgroundcolor "none"
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset CommandInset include
|
||||
LatexCommand input
|
||||
preview true
|
||||
filename "common-front-matter.lyx"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -101,103 +101,7 @@ fixltx2e
|
|||
|
||||
\begin_body
|
||||
|
||||
\begin_layout Title
|
||||
|
||||
\family typewriter
|
||||
MARS User Manual
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Subtitle
|
||||
Multiversion Asynchronous Replicated Storage
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Author
|
||||
Thomas Schöbel-Theuer (
|
||||
\family typewriter
|
||||
tst@1und1.de
|
||||
\family default
|
||||
)
|
||||
\end_layout
|
||||
|
||||
\begin_layout Date
|
||||
Version 0.1a-72
|
||||
\end_layout
|
||||
|
||||
\begin_layout Lowertitleback
|
||||
\noindent
|
||||
Copyright (C) 2013-16 Thomas Schöbel-Theuer
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
Copyright (C) 2013-16 1&1 Internet AG (see
|
||||
\begin_inset Flex URL
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
|
||||
http://www.1und1.de
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
shortly called 1&1 in the following).
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\size footnotesize
|
||||
Permission is granted to copy, distribute and/or modify this document under
|
||||
the terms of the GNU Free Documentation License, Version 1.3 or any later
|
||||
version published by the Free Software Foundation; with no Invariant Sections,
|
||||
no Front-Cover Texts, and no Back-Cover Texts.
|
||||
A copy of the license is included in the section entitled
|
||||
\begin_inset Quotes eld
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset CommandInset ref
|
||||
LatexCommand nameref
|
||||
reference "chap:GNU-FDL"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Quotes erd
|
||||
\end_inset
|
||||
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
|
||||
\family typewriter
|
||||
\begin_layout Standard
|
||||
\begin_inset ERT
|
||||
status open
|
||||
|
||||
|
|
@ -205,134 +109,20 @@ status open
|
|||
|
||||
|
||||
\backslash
|
||||
sloppy
|
||||
title{MARS User Manual}
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
MARS
|
||||
\family default
|
||||
is a block-level storage replication system for long distances / flaky
|
||||
networks under GPL.
|
||||
It runs as a Linux kernel module.
|
||||
The sysadmin interface is similar to DRBD
|
||||
\begin_inset Foot
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
Registered trademarks are the property of their respective owner.
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
, but its internal engine is completely different from DRBD: it works with
|
||||
|
||||
\series bold
|
||||
transaction logging
|
||||
\series default
|
||||
, similar to some database systems.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
Therefore, MARS can provide stronger
|
||||
\series bold
|
||||
consistency guarantees
|
||||
\series default
|
||||
.
|
||||
Even in case of network bottlenecks / problems / failures, the secondaries
|
||||
may become outdated (reflect an elder state), but never become inconsistent.
|
||||
In contrast to DRBD, MARS preserves the
|
||||
\series bold
|
||||
order of write operations
|
||||
\series default
|
||||
even when the network is flaky (
|
||||
\series bold
|
||||
Anytime Consistency
|
||||
\series default
|
||||
).
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
The current version of MARS supports
|
||||
\begin_inset Formula $k>2$
|
||||
\end_inset
|
||||
|
||||
replicas and works
|
||||
\series bold
|
||||
asynchronously
|
||||
\series default
|
||||
.
|
||||
Therefore, application performance is completely decoupled from any network
|
||||
problems.
|
||||
Future versions are planned to also support synchronous or near-synchronous
|
||||
modes.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
MARS supports a new method for building Cloud Storage / Software Defined
|
||||
Storage, called
|
||||
\series bold
|
||||
LV Football
|
||||
\series default
|
||||
.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
It comes with some automation scripts, leading to a similar functionality
|
||||
than Kubernetes, but devoted to stateful LVs over
|
||||
\series bold
|
||||
virtual LVM pools
|
||||
\series default
|
||||
in the petabytes range.
|
||||
\end_layout
|
||||
|
||||
\begin_layout Abstract
|
||||
\paragraph_spacing double
|
||||
\noindent
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset space ~
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Newline newline
|
||||
\end_inset
|
||||
|
||||
|
||||
\begin_inset Box Frameless
|
||||
position "c"
|
||||
hor_pos "c"
|
||||
has_inner_box 1
|
||||
inner_pos "c"
|
||||
use_parbox 0
|
||||
use_makebox 1
|
||||
width "100col%"
|
||||
special "none"
|
||||
height "1in"
|
||||
height_special "totalheight"
|
||||
thickness "0.4pt"
|
||||
separation "3pt"
|
||||
shadowsize "4pt"
|
||||
framecolor "black"
|
||||
backgroundcolor "none"
|
||||
status open
|
||||
|
||||
\begin_layout Plain Layout
|
||||
\begin_inset Graphics
|
||||
filename images/earth-mars-transfer.fig
|
||||
width 70col%
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset CommandInset include
|
||||
LatexCommand input
|
||||
preview true
|
||||
filename "common-front-matter.lyx"
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue