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check_smartmon2.py
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check_smartmon2.py
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#!/usr/bin/python
# -*- coding: iso8859-1 -*-
#
# $Id: version.py 133 2006-03-24 10:30:20Z fuller $
#
# check_smartmon
# Copyright (C) 2006 daemogorgon.net
#
# This program 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# MOD by basos (basos<dot<g<at<gmx<dot<net)
# - add no check standby option
# - add all atributes checking logic
# - add infastructure for arbitrary raw attribute checking
#
# v1.1
"""Package versioning
"""
import os.path
import sys
import re
from optparse import OptionParser
__author__ = "fuller <[email protected]>"
__version__ = "$Revision$"
# application wide verbosity (can be adjusted with -v [0-3])
_verbosity = 0
def parseCmdLine(args):
"""Commandline parsing."""
usage = "usage: %prog [options]"
version = "%%prog %s" % (__version__)
parser = OptionParser(usage=usage, version=version)
parser.add_option("-d", "--device", action="store", dest="device", default="", metavar="DEVICE",
help="device to check")
parser.add_option("-v", "--verbosity", action="store",
dest="verbosity", type="int", default=0,
metavar="LEVEL", help="set verbosity level to LEVEL; defaults to 0 (quiet), \
possible values go up to 3")
parser.add_option("-w", "--warning-threshold", metavar="TEMP", action="store",
type="int", dest="warningThreshold", default="50",
help="set temperature warning threshold to given temperature (defaults to 50)")
parser.add_option("-c", "--critical-threshold", metavar="TEMP", action="store",
type="int", dest="criticalThreshold", default="55",
help="set temperature critical threshold to given temperature (defaults to 55)")
parser.add_option("-T", "--temperature-attrid", metavar="ID", action="store",
type="int", dest="tempAttrId", default="190",
help="set the temperature smart attribute id (defaults to 190)")
parser.add_option("-r", "--raw-attribute", metavar="ID WARN CRIT", action="append",
type="int", dest="rawAttrs", nargs=3,
help="define raw attributes to monitor (excluding temperature). Each attribute is defined by three space separated numbers: id, warn, crit. This option is accepted multiple times, one for each attribute.")
parser.add_option("-n", "--no-check-standby", metavar="BOOL", action="store_true",
dest="noCheckStandby", default=False,
help="do not check when disk status is standby (most disks do not spin in this state) (defaults to false)")
parser.add_option("-s", "--smartctl-command", metavar="CMD", action="store",
type="string", dest="smartctlPath", default="/usr/sbin/smartctl",
help="set the smartctl full system path or sudo prefixed command (defaults to /usr/sbin/smartctl)")
parser.add_option("-x", "--smartctl-xtra-args", metavar="ARGS", action="store",
type="string", dest="smartctlArgs", default="",
help="set extra smartctl args (excluding AHn).")
return parser.parse_args(args)
# end
def checkDevice(path):
"""Check if device exists and permissions are ok.
Returns:
- 0 ok
- 1 no such device
- 2 no read permission given
"""
vprint(3, "Check if %s does exist and can be read" % path)
if not os.access(path, os.F_OK):
return (1, "UNKNOWN: no such device found")
# Allow sudo execution
#elif not os.access(path, os.R_OK):
# return (2, "UNKNOWN: no read permission given")
else:
return (0, "")
# fi
# end
#def checkSmartMonTools(path):
# """Check if smartctl is available and can be executed.
#
# Returns:
# - 0 ok
# - 1 no such file
# - 2 cannot execute file
# """
#
# vprint(3, "Check if %s does exist and can be read" % path)
# if not os.access(path, os.F_OK):
# return (1, "UNKNOWN: cannot find %s" % path)
# elif not os.access(path, os.X_OK):
# return (2, "UNKNOWN: cannot execute %s" % path)
# else:
# return (0, "")
# # fi
## end
def callSmartMonTools(path, device, noCheckStandbyFlag, xtraArgs):
# get health status
noCheckStandby = "-n standby " if noCheckStandbyFlag else ""
xtraArgs = xtraArgs+" " if xtraArgs else ""
cmd = "%s -AH %s%s%s" % (path, noCheckStandby, xtraArgs, device)
vprint(3, "Get device health/attribute status: %s" % cmd)
(child_stdin, child_stdout, child_stderr) = os.popen3(cmd)
line = child_stderr.readline()
if len(line):
return (3, "UNKNOWN: call exits unexpectedly (%s)" % line, "")
smartStatusOutput = ""
for line in child_stdout:
smartStatusOutput = smartStatusOutput + line
# done
return (0 ,"", smartStatusOutput)
# end
def createReturnInfo(healthMessage, attrSpecs):
"""Parse smartctl output
attrSpecs dict of attrSpec tuples {attrid: (warn, crit)}
Create nagios return information according to given thresholds.
"""
def checkAttr(id, raw, attrSpecs):
id = int(id)
if id not in attrSpecs:
return (-1,None,None)
attrSpec = attrSpecs[id]
raw = int(raw)
if raw >= attrSpec[1]:
return (2,)+attrSpec ; # crit (val >= crit)
elif raw >= attrSpec[0]:
return (1,)+attrSpec; # warn (val >= warn)
return (0,)+attrSpec; # ok
#def
def formatAttr(s_id, s_name, s_failed, s_value, s_thres):
return "Attribute "+str(s_name)+" ("+str(s_id)+") seems to fail ("+(str(s_failed) if s_failed != '-' else \
str(s_value)+"<="+str(s_thres))+")"
def pipeStuff(s_name, s_value, s_thres, s_cthres = None, s_min = "0", s_max = "254"):
if (None == s_cthres): s_cthres = s_thres
return "|"+str(s_name)+"="+str(s_value)+";"+str(s_thres)+";"+str(s_cthres)+((";"+s_min+((";"+s_max) if s_max != None else "")) if s_min != None else "")
# parse health status
#
statusLine = ""
lines = healthMessage.split("\n")
getNext = 0
healthStatus = ''
temperStuff = (None, "Temperature_not_found", 0 , 0)
in_attrs = 0
ret = (3, "UNKNNOWN: smartctl encountered an error")
for line in lines:
if healthStatus == '' and re.search(r"^SMART overall-health self-assessment test result", line):
ps = line.split()
healthStatus = ps[-1]
vprint(3, "Health status: %s" % healthStatus)
# this is absolutely critical!
if healthStatus != "PASSED":
ret = (2, "CRITICAL: SMART overall health test failed")
else:
ret = (0, "OK: device is functional and stable")
continue;
# fi
if in_attrs == 1 and (not line or not re.search(r"\d+", line.split()[0])):
vprint(3, "End of Attributes parsing");
in_attrs = 0
if in_attrs:
ps = line.split()
s_id, s_name, s_flag, s_value, s_worst, s_thres, s_type, s_updated, s_failed, s_raw = \
ps[0], ps[1], ps[2], ps[3], ps[4], ps[5], ps[6], ps[7], ps[8], ps[9]
vprint(2, "Checking Attr: %s (%s), v: %s (%s)" % (s_name, s_id, s_value, s_raw))
if (s_failed != '-' or int(s_value) <= int(s_thres)):
if s_type.lower() == 'pre-fail' :
if s_failed.lower() != 'in_the_past':
ret = (2, "CRITICAL: "+formatAttr(s_id, s_name, s_failed, s_value, s_thres) + \
pipeStuff(s_name, s_value, s_thres))
elif ret[0] < 2:
ret = (1, "WARNING: "+formatAttr(s_id, s_name, s_failed, s_value, s_thres) + \
pipeStuff(s_name, s_value, s_thres))
elif ret[0] < 2 and s_failed.lower() != 'in_the_past':
ret = (1, "WARNING: "+formatAttr(s_id, s_name, s_failed, s_value, s_thres) + \
pipeStuff(s_name, s_value, s_thres))
# fi
tmp = checkAttr(s_id, s_raw, attrSpecs)
if tmp[0] > 0:
if ret[0] < 2:
#ret = (tmp[0], "CRITICAL" if tmp[0] == 2 else "WARNING"+": Attribute raw "+str(s_name)+" ("+str(s_id)+") over "+("critical" if tmp[0] == 2 \
#else "warning")+"threshold ("+str(s_raw)+">="+str(tmp[2 if tmp[0] == 2 else 1]+")"))
vprint(2, "Attr "+str(s_id)+", "+str(s_raw)+" over thres "+str(tmp));
ret = (tmp[0], ("CRITICAL" if tmp[0] == 2 else "WARNING")+": " + \
formatAttr(s_id, s_name, "Raw_limits", s_raw, tmp[2 if tmp[0] == 2 else 1]) + \
pipeStuff(s_name, s_raw, tmp[1], tmp[2], *(("0", "100") if len(tmp) == 4 and tmp[3] else ())))
elif tmp[0] == 0 and len(tmp) == 4 and tmp[3]:
# found temperature
temperStuff = (s_name, s_raw) + tmp[1:3]
elif re.search(r"ID.?\s+ATTRIBUTE_NAME\s+FLAG\s+VALUE\s+WORST\s+THRESH\s+TYPE\s+UPDATED\s+WHEN_FAILED\s+RAW_VALUE", line):
vprint(3, "Start of Attributes parsing")
in_attrs = 1
else:
vprint(3, "Ommiting smartctl row: %s" % line)
# ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
# done
if ret[0] == 0 and temperStuff[0] != None:
temperStuff = temperStuff + ("0", "100")
ret = (0, ret[1] + pipeStuff(*temperStuff))
if ret[0] == 3:
vprint(3, "smartctl error, output: %s" % healthMessage);
return ret
##(0, "OK: device is functional and stable (temperature: %d)" % temperature)
# end
def exitWithMessage(value, message):
"""Exit with given value and status message."""
print message
sys.exit(value)
# end
def vprint(level, message):
"""Verbosity print.
Decide according to the given verbosity level if the message will be
printed to stdout.
"""
if level <= verbosity:
print message
# fi
# end
if __name__ == "__main__":
(options, args) = parseCmdLine(sys.argv)
verbosity = options.verbosity
vprint(2, "Get device name")
device = options.device
vprint(1, "Device: %s" % device)
# check if we can access 'path'
vprint(2, "Check device")
(value, message) = checkDevice(device)
if value != 0:
exitWithMessage(3, message)
# fi
# check if we have smartctl available
#(value, message) = checkSmartMonTools(options.smartctlPath)
#if value != 0:
# exitWithMessage(3, message)
# fi
vprint(1, "Path to smartctl: %s" % options.smartctlPath)
# call smartctl and parse output
vprint(2, "Call smartctl")
(value, message, healthStatusOutput) = callSmartMonTools(options.smartctlPath, device, options.noCheckStandby, options.smartctlArgs)
if value != 0:
exitWithMessage(value, message)
vprint(2, "Parse smartctl output and return info")
attrs = {}
if options.rawAttrs:
for at in options.rawAttrs:
attrs[at[0]] = at[1:3]
attrs[options.tempAttrId] = (options.warningThreshold, options.criticalThreshold, True)
(value, message) = createReturnInfo(healthStatusOutput, attrs)
# exit program
exitWithMessage(value, message)
# fi