Index: docs/manual/megatest_manual.html
==================================================================
--- docs/manual/megatest_manual.html
+++ docs/manual/megatest_manual.html
@@ -1096,10 +1096,25 @@
 </div>
 <h1 id="_reference">Reference</h1>
 <div class="sect1">
 <h2 id="_megatest_config_file_settings">Megatest Config File Settings</h2>
 <div class="sectionbody">
+<div class="sect2">
+<h3 id="_disk_space_checks">Disk Space Checks</h3>
+<div class="paragraph"><p>Some parameters you can put in the [setup] section of megatest.config:</p></div>
+<div class="listingblock">
+<div class="content monospaced">
+<pre># minimum space required in a run disk
+minspace 10000000
+
+# minimum space required in dbdir:
+dbdir-space-required 100000
+
+# script that takes path as parameter and returns number of bytes available:
+free-space-script check-space.sh</pre>
+</div></div>
+</div>
 <div class="sect2">
 <h3 id="_trim_trailing_spaces">Trim trailing spaces</h3>
 <div class="listingblock">
 <div class="content monospaced">
 <pre>[configf:settings trim-trailing-spaces yes]</pre>

Index: docs/manual/reference.txt
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--- docs/manual/reference.txt
+++ docs/manual/reference.txt
@@ -3,10 +3,26 @@
 =========
 
 Megatest Config File Settings
 -----------------------------
 
+Disk Space Checks
+~~~~~~~~~~~~~~~~~
+
+Some parameters you can put in the [setup] section of megatest.config:
+
+-------------------
+# minimum space required in a run disk 
+minspace 10000000
+
+# minimum space required in dbdir:
+dbdir-space-required 100000
+
+# script that takes path as parameter and returns number of bytes available:
+free-space-script check-space.sh
+-------------------
+
 Trim trailing spaces
 ~~~~~~~~~~~~~~~~~~~~
 
 ------------------
 [configf:settings trim-trailing-spaces yes]