checks/solaris_multipath

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 # Example output:
  28 # <<<solaris_multipath>>>
  29 # /dev/rdsk/c4t600601608CB02A00DCFD2EEB19A0E111d0s2 4 4
  30
  31 # Note: the number of total paths is not correct. After maintainance
  32 # they is too high. Also in case of broken paths the number of total
  33 # paths sometimes changes. So we just use that for informational
  34 # output. The discovery remembers the number of operational paths
  35 # and we check agains that later.
  36
  37
  38 def inventory_solaris_multipath(info):
  39     for device, _total, operational in info:
  40         item = device.split('/')[-1]
  41         yield item, int(operational)
  42
  43
  44 def check_solaris_multipath(item, params, info):
  45     for device, total, operational in info:
  46         if item == device.split('/')[-1]:
  47
  48             operational = int(operational)
  49             total = int(total)
  50
  51             infotext = "%d paths operational, %d paths total" % (operational, total)
  52
  53             if not params:
  54                 state = 1
  55                 infotext += ", expected paths unknown, please redo service discovery"
  56             else:
  57                 if isinstance(params, tuple):
  58                     warn, crit = params
  59                     warn_num = (warn / 100.0) * total
  60                     crit_num = (crit / 100.0) * total
  61                     levels = " (Warning/ Critical at %d/ %d)" % (warn_num, crit_num)
  62                     info = "paths active: %d" % (operational)
  63                     if operational <= crit_num:
  64                         return 2, info + levels
  65                     elif operational <= warn_num:
  66                         return 1, info + levels
  67                     return 0, info
  68                 else:
  69                     expected = int(params)  # should be int, just for legacy reasons
  70                 if operational > expected:
  71                     state = 1
  72                 elif expected == operational:
  73                     state = 0
  74                 elif expected >= operational * 2:  # less than half of paths operational
  75                     state = 2
  76                 else:
  77                     state = 1
  78                 if state:
  79                     infotext += ", %d paths expected to be operational" % expected
  80
  81             return state, infotext
  82
  83
  84 check_info["solaris_multipath"] = {
  85     "inventory_function": inventory_solaris_multipath,
  86     "check_function": check_solaris_multipath,
  87     "service_description": "Multipath %s",
  88     "group": "multipath"
  89 }