checks/filerdisks.include

   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 # disks = [
  28 #     { "state" : "failed",
  29 #       "identifier" : "Enclosure: 2, Slot: 1, Type: SATA",
  30 #       "type" : "parity",
  31 #       "capacity" : 1000000000000,
  32 #     }
  33 factory_settings["filer_disks_default_levels"] = {
  34     "failed_spare_ratio": (1.0, 50.0),
  35     "offline_spare_ratio": (1.0, 50.0),
  36 }
  37
  38
  39 def check_filer_disks(disks, params):
  40     state = {}
  41     state['prefailed'] = []
  42     state['failed'] = []
  43     state['offline'] = []
  44     state['spare'] = []
  45
  46     total_capacity = 0
  47
  48     for disk in disks:
  49         total_capacity += disk.get("capacity", 0)
  50         for what in state:
  51             if disk['state'] == what:
  52                 state[what].append(disk)
  53
  54     yield 0, "Total raw capacity: %s" % get_bytes_human_readable(total_capacity), [
  55         ("total_disk_capacity", total_capacity)
  56     ]
  57     # TODO: Is a prefailed disk unavailable?
  58     unavail_disks = len(state['prefailed']) + len(state['failed']) + len(state['offline'])
  59     yield 0, "Total disks: %d" % (len(disks) - unavail_disks), [("total_disks", len(disks))]
  60
  61     spare_disks = len(state['spare'])
  62     spare_state, spare_infotext = 0, "Spare disks: %d" % spare_disks
  63     spare_disk_levels = params.get('number_of_spare_disks')
  64     if spare_disk_levels:
  65         warn, crit = spare_disk_levels
  66         if spare_disks < crit:
  67             spare_state = 2
  68         elif spare_disks < warn:
  69             spare_state = 1
  70
  71         if spare_state:
  72             spare_infotext += " (warn/crit below %s/%s)" % (warn, crit)
  73     yield spare_state, spare_infotext, [("spare_disks", spare_disks)]
  74
  75     parity_disks = [disk for disk in disks if disk['type'] == 'parity']
  76     prefailed_parity = [disk for disk in parity_disks if disk['state'] == 'prefailed']
  77     if len(parity_disks) > 0:
  78         yield 0, "Parity disks: %d (%d prefailed)" % (len(parity_disks), len(prefailed_parity))
  79
  80     yield 0, "Failed disks: %d" % unavail_disks, [("failed_disks", unavail_disks)]
  81
  82     for name, disk_type in [("Data", "data"), ("Parity", "parity")]:
  83         total_disks = [disk for disk in disks if disk['type'] == disk_type]
  84         prefailed_disks = [disk for disk in total_disks if disk['state'] == 'prefailed']
  85         if len(total_disks) > 0:
  86             info_text = "%s disks" % len(total_disks)
  87             if len(prefailed_disks) > 0:
  88                 info_text += " (%d prefailed)" % (prefailed_disks)
  89             yield 0, info_text
  90             info_texts = []
  91             for disk in prefailed_disks:
  92                 info_texts.append(disk['identifier'])
  93             if len(info_texts) > 0:
  94                 yield 0, "%s Disk Details: %s" % (name, " / ".join(info_texts))
  95
  96     for disk_state in ["failed", "offline"]:
  97         info_texts = []
  98         for disk in state[disk_state]:
  99             info_texts.append(disk['identifier'])
 100         if len(info_texts) > 0:
 101             yield 0, "%s Disk Details: %s" % (disk_state, " / ".join(info_texts))
 102             warn, crit = params["%s_spare_ratio" % disk_state]
 103             ratio = float(len(
 104                 state[disk_state])) / (len(state[disk_state]) + len(state['spare'])) * 100
 105             return_state = False
 106             if ratio >= crit:
 107                 return_state = 2
 108             elif ratio >= warn:
 109                 return_state = 1
 110             if return_state:
 111                 yield return_state, "Too many %s disks (warn/crit at %.1f%%/%.1f%%)" % (disk_state,
 112                                                                                         warn, crit)