/usr/share/check_mk/checks/multipath 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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 | #!/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.
# Output from multipath -l has the following format:
# orabase.lun50 (360a9800043346937686f456f59386741) dm-15 NETAPP,LUN
# [size=25G][features=1 queue_if_no_path][hwhandler=0]
# \_ round-robin 0 [prio=0][active]
# \_ 1:0:3:50 sdy 65:128 [active][undef]
# \_ 3:0:3:50 sdz 65:144 [active][undef]
# An alias might not be defined. The out is then:
# 360a980004334644d654a364469555a76
# [size=300 GB][features="0"][hwhandler="0"]
# \_ round-robin 0 [active]
# \_ 1:0:2:13 sdc 8:32 [active][ready]
# \_ 3:0:2:13 sdl 8:176 [active][ready]
# Might also be local disks:
# SFUJITSU_MAW3073NC_DBL2P62003VT
# [size=68 GB][features="0"][hwhandler="0"]
# \_ round-robin 0 [active]
# \_ 0:0:3:0 sdb 8:16 [active][ready]
# Some very special header line
# (No space between uuid and dm-* - strange...)
# 360a980004334644d654a316e65306e51dm-4 NETAPP,LUN
# [size=30G][features=1 queue_if_no_path][hwhandler=0]
# \_ round-robin 0 [prio=0][active]
# \_ 1:0:2:50 sdg 8:96 [active][undef]
# \_ round-robin 0 [prio=0][enabled]
# \_ 4:0:1:50 sdl 8:176 [active][undef]
# And another one:
# 1494554000000000052303250303700000000000000000000 dm-0 IET,VIRTUAL-DISK
# [size=70G][features=0][hwhandler=0][rw]
# \_ round-robin 0 [prio=-1][active]
# \_ 3:0:0:0 sdb 8:16 [active][undef]
# \_ round-robin 0 [prio=-1][enabled]
# \_ 4:0:0:0 sdc 8:32 [active][undef]
# Other output from other host:
# anzvol2 (36005076306ffc648000000000000510a) dm-15 IBM,2107900
# [size=100G][features=0][hwhandler=0]
# \_ round-robin 0 [prio=-6][active]
# \_ 4:0:5:1 sdbf 67:144 [active][undef]
# \_ 4:0:4:1 sdau 66:224 [active][undef]
# \_ 4:0:3:1 sdaj 66:48 [active][undef]
# \_ 3:0:5:1 sdy 65:128 [active][undef]
# \_ 3:0:4:1 sdn 8:208 [active][undef]
# \_ 3:0:3:1 sdc 8:32 [active][undef]
# anzvol1 (36005076306ffc6480000000000005005) dm-16 IBM,2107900
# [size=165G][features=0][hwhandler=0]
# \_ round-robin 0 [prio=-6][active]
# \_ 4:0:5:0 sdbe 67:128 [active][undef]
# \_ 4:0:4:0 sdat 66:208 [active][undef]
# \_ 4:0:3:0 sdai 66:32 [active][undef]
# \_ 3:0:5:0 sdx 65:112 [active][undef]
# \_ 3:0:4:0 sdm 8:192 [active][undef]
# \_ 3:0:3:0 sdb 8:16 [active][undef]
# And one other output (ID has not 33 times A-Z0-9):
# mpath1 (SIBM_____SwapA__________DA02BF71)
# [size=41 GB][features="0"][hwhandler="0"]
# \_ round-robin 0 [active]
# \_ 1:0:1:0 sdd 8:48 [active]
# Recently I've seen this output >:-P
# 360080e500017bd72000002eb4c1b1ae8 dm-1 IBM,1814 FAStT
# size=350G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw
# `-+- policy='round-robin 0' prio=-1 status=active
# |- 7:0:2:81 sdd 8:48 active undef running
# `- 8:0:2:81 sdp 8:240 active undef running
# And this has been seen on SLES 11 SP1 64 Bit:
# 3600508b40006d7da0001a00004740000 dm-0 HP,HSV210
# size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw
# |-+- policy='round-robin 0' prio=-1 status=active
# | |- 2:0:0:1 sda 8:0 active undef running
# | `- 3:0:0:1 sdo 8:224 active undef running
# `-+- policy='round-robin 0' prio=-1 status=enabled
# |- 3:0:1:1 sdv 65:80 active undef running
# `- 2:0:1:1 sdh 8:112 active undef running
# This is another output, which made problems up to
# 1.1.12:
#
# SDDN_S2A_9900_1308xxxxxxxx dm-13 DDN,S2A 9900
# [size=7.3T][features=0][hwhandler=0][rw]
# \_ round-robin 0 [prio=0][active]
# \_ 3:0:1:11 sdaj 66:48 [failed][undef]
# \_ 4:0:0:11 sdbh 67:176 [failed][undef]
# \_ 4:0:2:11 sddd 70:176 [active][undef]
# \_ 3:0:2:11 sdeb 128:48 [active][undef]
# \_ round-robin 0 [prio=0][enabled]
# \_ 4:0:1:11 sdcf 69:48 [active][undef]
# \_ 3:0:0:11 sdl 8:176 [active][undef]
def parse_multipath_output(info, only_uuid = None):
# only_uuid --> look only for data of this uuid or alias
# New reported header lines need to be placed here
# the matches need to be put in a list of tupples
# while the structure of the tupple is:
# 0: matching regex
# 1: matched regex-group id of UUID
# 2: matched regex-group id of alias (optional)
reg_headers = [
(get_regex(r"^[0-9a-z]{33}$"), 0, None), # 1. (should be included in 3.)
(get_regex(r"^([^\s]+)\s\(([0-9A-Za-z_-]+)\)"), 2, 1), # 2.
(get_regex(r"^[a-zA-Z0-9_]+$"), 0, None), # 3.
(get_regex(r"^([0-9a-z]{33}|[0-9a-z]{49})\s?dm.+$"), 1, None), # 4.
(get_regex(r"^[a-zA-Z0-9_]+dm-.+$"), 0, None), # 5. Remove this line in 1.2.0
(get_regex(r"^([a-zA-Z0-9_]+)\s?dm-.+$"), 1, None), # 6.
]
reg_prio = get_regex("[[ ]prio=")
reg_lun = get_regex("[0-9]+:[0-9]+:[0-9]+:[0-9]+")
uuid = None
alias = None
groups = {}
group = {}
numpaths = None
for line in info:
# newer agent also output the device mapper table.
# ignore those lines for now.
if line[0] == "dm":
# Reset current device and skip line
uuid = None
continue
# restore original non-split line
l = " ".join(line)
# Skip output when multipath is not present
if l.endswith('DM multipath kernel driver not loaded'):
uuid = None
continue
# First simply separate between data row and header row
if line[0][0] not in [ '[', '`', '|', '\\' ] and not line[0].startswith("size="):
# Try to match header lines
matchobject = None
for regex, uuid_pos, alias_pos in reg_headers:
matchobject = regex.search(l)
if matchobject:
uuid = matchobject.group(uuid_pos)
if alias_pos:
alias = matchobject.group(alias_pos)
else:
alias = None
break
# No data row and no matching header row
if not matchobject:
raise Exception("Invalid line in agent output: " + l)
# Skip unwanted devices in one device mode
if only_uuid and only_uuid not in [ uuid, alias ]:
uuid = None # wrong uuid, ignore this one
continue
# initialize information about next device
numpaths = 0
lun_info = []
paths_info = []
broken_paths = []
group = {}
group['paths'] = paths_info
group['broken_paths'] = broken_paths
group['luns'] = lun_info
group['uuid'] = uuid
group['state'] = None
group['numpaths'] = 0
groups[uuid] = group
# If the device has an alias, then extract it
if alias:
group['alias'] = alias
# Proceed with next line after init
continue
else:
if uuid != None:
# Handle special syntax | |- 2:0:0:1 sda ...
if line[0] == '|':
line = line[1:]
if reg_prio.search(l):
group['state'] = "".join(line[3:])
elif len(line) >= 4 and reg_lun.match(line[1]):
luninfo = "%s(%s)" % (line[1], line[2])
lun_info.append(luninfo)
state = line[4]
if not "active" in state:
broken_paths.append(luninfo)
numpaths += 1
group['numpaths'] = numpaths
paths_info.append(line[2])
return groups
# Get list of UUIDs of all multipath devices
# Length of UUID is 360a9800043346937686f456f59386741
def inventory_multipath(info):
inventory = []
parsed = parse_multipath_output(info)
for uuid, info in parsed.items():
# take current number of paths as target value
inventory.append( (uuid, " ".join(info['luns']), info['numpaths']) )
return inventory
# item is UUID (e.g. '360a9800043346937686f456f59386741') or alias (e.g. 'mpath0')
def check_multipath(item, target_numpaths, info):
if target_numpaths == None:
target_numpaths = 2 # default case: we need two paths
parsed = parse_multipath_output(info, item) # we look for one specific uuid/alias
if len(parsed) == 0:
return (3, "UNKNOWN - no map with uuid/alias %s" % item)
mmap = parsed.values()[0]
alias = mmap.get('alias')
if alias:
aliasinfo = "(%s) " % alias
else:
aliasinfo = ""
numpaths = mmap['numpaths']
broken = mmap['broken_paths']
numbroken = len(broken)
if numbroken > 0:
return (2, "CRIT - %sbroken paths: %s" % (aliasinfo, ",".join(broken)))
info = "%spaths expected: %d, paths active: %d" % (aliasinfo, target_numpaths, numpaths)
if numpaths < target_numpaths:
return (2, "CRIT - " + info)
elif numpaths > target_numpaths:
return (1, "WARN - " + info)
else:
return (0, "OK - " + info)
check_info['multipath'] = (
check_multipath,
"Multipath %s",
0,
inventory_multipath)
|