/usr/share/check_mk/checks/dell_powerconnect_fans is in check-mk-server 1.1.12-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | #!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2010             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software;  you can redistribute it and/or modify it
# under the  terms of the  GNU General Public License  as published by
# the Free Software Foundation in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# ails.  You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.
# Author: Lars Michelsen <lm@mathias-kettner.de>
# Modified for Dell Sensors By: Chris Bowlby <cbowlby@tenthpowertech.com>
# Tested with Dell PowerConnect 5448 and 5424 models.
# Relevant SNMP OIDs:
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.1.67109249 = INTEGER: 67109249
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.1.67109250 = INTEGER: 67109250
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.1.67109251 = INTEGER: 67109251
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.2.67109249 = STRING: "fan1_unit1"
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.2.67109250 = STRING: "fan2_unit1"
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.2.67109251 = STRING: "fan3_unit1"
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.3.67109249 = INTEGER: 1
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.3.67109250 = INTEGER: 1
#.1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1.3.67109251 = INTEGER: 1
# Status codes:
# 1 => normal,
# 2 => warning,
# 3 => critical,
# 4 => shutdown,
# 5 => notPresent,
# 6 => notFunctioning
# GENERAL MAPS:
dell_powerconnect_fans_status_map = { '1': 'normal', '2': 'warning', '3': 'critical', '4': 'shutdown', '5': 'notPresent', '6': 'notFunctioning' }
dell_powerconnect_fans_status2nagios_map = { 'normal': 0, 'warning': 1, 'critical': 2, 'shutdown': 3, 'notPresent': 1, 'notFunctioning': 2 }
dell_powerconnect_fans_state_performance_map = { '1': 1, '2': 0, '3': 0, '4': 0, '5': 0, '6': 0 }
# Inventory of all fan related elements
def inventory_dell_powerconnect_fans(checkname, info):
    inventory = []
    for device_id, name, state in info:
        if dell_powerconnect_fans_status_map[state] != 'notPresent':
            inventory.append((name, None))
    return inventory
# The check for the states and details of each fan
def check_dell_powerconnect_fans(item, _not_used, info):
    for device_id, name, state in info:
        if name == item:
            dell_powerconnect_status = dell_powerconnect_fans_status_map[state]
            status = dell_powerconnect_fans_status2nagios_map[dell_powerconnect_status]
	    return (status, '%s - Condition of FAN "%s" is %s' %
                            (nagios_state_names[status], name, dell_powerconnect_status))
# Retain code below in case future state flags to enable/disable performance data are added.
#            return (status, '%s - Condition of FAN "%s" is %s' %
#                            (nagios_state_names[status], name, dell_powerconnect_status), [
#                    ("state", dell_powerconnect_fans_state_performance_map[state], "", 0, 0, 1),
#            ])
    return (3, "UNKNOWN - item not found in snmp data")
# Auto-detection of fan related details.
check_info['dell_powerconnect_fans'] = (check_dell_powerconnect_fans, "Sensor %s", 1,  inventory_dell_powerconnect_fans)
snmp_info['dell_powerconnect_fans']  = ( ".1.3.6.1.4.1.674.10895.3000.1.2.110.7.1.1", [ "1", "2", "3"] )
snmp_scan_functions['dell_powerconnect_fans'] = \
    lambda oid: ".1.3.6.1.4.1.674.10895" in oid(".1.3.6.1.2.1.1.2.0")
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