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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>2.15. Truck based replication</title><link rel="stylesheet" type="text/css" href="default.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="home" href="drbd-users-guide.html" title="The DRBD User’s Guide" /><link rel="up" href="ch-features.html" title="Chapter 2. DRBD Features" /><link rel="prev" href="s-drbd-proxy.html" title="2.14. Long-distance replication with DRBD Proxy" /><link rel="next" href="s-floating-peers.html" title="2.16. Floating peers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">2.15. Truck based replication</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="s-drbd-proxy.html">Prev</a> </td><th width="60%" align="center">Chapter 2. DRBD Features</th><td width="20%" align="right"> <a accesskey="n" href="s-floating-peers.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="s-truck-based-replication"></a>2.15. Truck based replication</h2></div></div></div><p>Truck based replication, also known as disk shipping, is a means of
preseeding a remote site with data to be replicated, by physically
shipping storage media to the remote site. This is particularly suited
for situations where</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
the total amount of data to be replicated is fairly
large (more than a few hundreds of gigabytes);
</li><li class="listitem">
the expected rate of change of the data to be replicated is less
than enormous;
</li><li class="listitem">
the available network bandwidth between sites is
limited.
</li></ul></div><p>In such situations, without truck based replication, DRBD would
require a very long initial device synchronization (on the order of
days or weeks). Truck based replication allows us to ship a data seed
to the remote site, and drastically reduce the initial synchronization
time. See <a class="xref" href="s-using-truck-based-replication.html" title="5.6. Using truck based replication">Section 5.6, “Using truck based replication”</a> for details on this use
case.</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="s-drbd-proxy.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch-features.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="s-floating-peers.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">2.14. Long-distance replication with DRBD Proxy </td><td width="20%" align="center"><a accesskey="h" href="drbd-users-guide.html">Home</a></td><td width="40%" align="right" valign="top"> 2.16. Floating peers</td></tr></table></div></body></html>
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