diff --git a/nagios/check_nrpe_disks.php b/nagios/check_nrpe_disks.php
new file mode 100644
index 0000000..bca07d5
--- /dev/null
+++ b/nagios/check_nrpe_disks.php
@@ -0,0 +1,79 @@
+<?php
+#
+# Copyright (c) 2006-2010 Joerg Linge (http://www.pnp4nagios.org)
+# Template for check_disk
+#
+# RRDtool Options
+
+foreach ($this->DS as $KEY=>$VAL) {
+# set initial values
+	$fmt = '%7.3lf';
+	$pct = '';
+	$upper = "";
+	$maximum = "";
+	$divis = 1;
+	$return = '\n';
+	$unit = "B";
+	$label = $unit;
+	if ($VAL['UNIT'] != "") {
+		$unit = $VAL['UNIT'];
+		$label = $unit;
+		if ($VAL['UNIT'] == "%%") {
+			$label = '%';
+			$fmt = '%5.1lf';
+			$pct = '%';
+		}
+	}
+	if ($VAL['MAX'] != "") {
+		# adjust value and unit, details in .../helpers/pnp.php
+		$max = pnp::adjust_unit( $VAL['MAX'].$unit,1024,$fmt );
+		//$upper = "-u $max[1] ";
+		$maximum = "of $max[1] $max[2]$pct free";
+		$label = $max[2];
+		$divis = $max[3];
+		//$return = '';
+	}
+	$ds_name[$KEY] = str_replace("_","/",$VAL['NAME']);
+	# set graph labels
+	$opt[$KEY]     = "--vertical-label $label -l 0 $upper --title \"Free space on filesystem $ds_name[$KEY]\" ";
+	# Graph Definitions
+	$def[$KEY]     = rrd::def( "var1", $VAL['RRDFILE'], $VAL['DS'], "AVERAGE" );
+	# "normalize" graph values
+	if ($VAL['MAX'] != "") {
+		$def[$KEY]    .= rrd::cdef( "v_libre", $VAL['MAX'] . ",var1,-");
+		$def[$KEY]    .= rrd::cdef( "v_n","v_libre,$divis,/");
+	} else {
+		$def[$KEY]    .= rrd::cdef( "v_n","var1,$divis,/");
+	}
+	$def[$KEY]    .= rrd::area( "v_n", "#c6c6c6",  $ds_name[$KEY] );
+	$def[$KEY]    .= rrd::line1( "v_n", "#003300" );
+	# show values in legend
+	$def[$KEY]    .= rrd::gprint( "v_n", "LAST", "$fmt $label$pct $maximum ");
+	$def[$KEY]    .= rrd::gprint( "v_n", "AVERAGE", "$fmt $label$pct avg $return");
+	# create max line and legend
+	if ($VAL['MAX'] != "") {
+		//$def[$KEY] .= "COMMENT:\"" . $max[1] . " Size of FS  " . $max[0] ."\"";
+		# create warning line and legend
+		if ($VAL['WARN'] != "") {
+			$warn = pnp::adjust_unit( ($VAL['MAX'] - $VAL['WARN']) . $unit, 1024, $fmt );
+			$def[$KEY] .= rrd::hrule( ($VAL['MAX'] - $VAL['WARN']) / $divis, "#ffff00", "Warning  on $warn[0] \\n" );
+		}
+		# create critical line and legend
+		if ($VAL['CRIT'] != "") {
+			$crit = pnp::adjust_unit( ($VAL['MAX'] - $VAL['CRIT']) . $unit, 1024, $fmt );
+			$def[$KEY] .= rrd::hrule( ($VAL['MAX'] - $VAL['CRIT']) / $divis, "#ff0000", "Critical on $crit[0]\\n" );
+		}
+	} else {
+		# create warning line and legend
+		if ($VAL['WARN'] != "") {
+			$warn = pnp::adjust_unit( $VAL['WARN'].$unit,1024,$fmt );
+			$def[$KEY] .= rrd::hrule( $warn[1], "#ffff00", "Warning  on $warn[0] \\n" );
+		}
+		# create critical line and legend
+		if ($VAL['CRIT'] != "") {
+			$crit = pnp::adjust_unit( $VAL['CRIT'].$unit,1024,$fmt );
+			$def[$KEY] .= rrd::hrule( $crit[1], "#ff0000", "Critical on $crit[0]\\n" );
+		}
+	}
+}
+?>