librenms/includes/polling/voltages.inc.php
2011-03-16 01:11:27 +00:00

53 lines
2.6 KiB
PHP
Executable File

<?php
$query = "SELECT * FROM sensors WHERE sensor_class='voltage' AND device_id = '" . $device['device_id'] . "' AND poller_type='snmp'";
$volt_data = mysql_query($query);
while ($sensor = mysql_fetch_array($volt_data))
{
echo("Checking voltage " . $sensor['sensor_descr'] . "... ");
$volt = snmp_get($device, $sensor['sensor_oid'], "-OUqnv", "SNMPv2-MIB");
if ($sensor['sensor_divisor']) { $volt = $volt / $sensor['sensor_divisor']; }
if ($sensor['sensor_multiplier']) { $volt = $volt * $sensor['sensor_multiplier']; }
$old_rrd_file = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("voltage-" . $sensor['sensor_descr'] . ".rrd");
$rrd_file = $config['rrd_dir'] . "/" . $device['hostname'] . "/voltage-" . safename($sensor['sensor_type']."-".$sensor['sensor_index']) . ".rrd";
if (is_file($old_rrd_file)) { rename($old_rrd_file, $rrd_file); }
if (!is_file($rrd_file))
{
rrdtool_create($rrd_file,"--step 300 \
DS:sensor:GAUGE:600:-273:1000 \
RRA:AVERAGE:0.5:1:1200 \
RRA:MIN:0.5:12:2400 \
RRA:MAX:0.5:12:2400 \
RRA:AVERAGE:0.5:12:2400");
}
echo($volt . " V\n");
rrdtool_update($rrd_file,"N:$volt");
if ($sensor['sensor_current'] > $sensor['sensor_limit_low'] && $volt <= $sensor['sensor_limit_low'])
{
$msg = "Voltage Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is " . $volt . "V (Limit " . $sensor['sensor_limit'];
$msg .= "V) at " . date($config['timestamp_format']);
notify($device, "Voltage Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
log_event('Voltage ' . $sensor['sensor_descr'] . " under threshold: " . $volt . " V (< " . $sensor['sensor_limit_low'] . " V)", $device['device_id'], 'voltage', $sensor['sensor_id']);
}
else if ($sensor['sensor_current'] < $sensor['sensor_limit'] && $volt >= $sensor['sensor_limit'])
{
$msg = "Voltage Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is " . $volt . "V (Limit " . $sensor['sensor_limit'];
$msg .= "V) at " . date($config['timestamp_format']);
notify($device, "Voltage Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
log_event('Voltage ' . $sensor['sensor_descr'] . " above threshold: " . $volt . " V (> " . $sensor['sensor_limit'] . " V)", $device['device_id'], 'voltage', $sensor['sensor_id']);
}
mysql_query("UPDATE sensors SET sensor_current = '$volt' WHERE sensor_class='voltage' AND sensor_id = '" . $sensor['sensor_id'] . "'");
}
?>