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dng IT
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Also for monitoring another thought would be to use Nagios to monitor
it for you. Looks like someone has already created a plugin for mdadm
which manages the software raid in Endian. You can goto
<http://www.nagiosexchange.org/Check_Plugins.21.0.html?&tx_netnagext_pi1%5Bp_view%5D=880&tx_netnagext_pi1%5Bpage%5D=70%3A10>
Here is what the plugin looks like:
____________________________________________________________________
#!/usr/bin/env python
#
# Copyright Hari Sekhon 2007
#
# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
#
""" This plugin for Nagios uses the standard mdadm program to get the status
of all the linux md arrays on the local machine using the mdadm utility"""
__version__ = 0.5
import os
import sys
from optparse import OptionParser
# Standard Nagios return codes
OK = 0
WARNING = 1
CRITICAL = 2
UNKNOWN = 3
srcdir = os.path.dirname(sys.argv[0])
bin = "/sbin/mdadm"
if os.geteuid() != 0:
print "UNKNOWN: you must be root to run this plugin"
sys.exit(UNKNOWN)
if not os.path.exists(bin):
print "UNKNOWN: %s cannot be found" % bin
sys.exit(UNKNOWN)
if not os.access(bin, os.X_OK):
print "UNKNOWN: mdadm utility is not executable"
sys.exit(UNKNOWN)
def find_arrays(verbosity):
"""finds all MD arrays on local machine using mdadm and returns a list of
them, or exits UNKNOWN if no MD arrays are found"""
if verbosity >= 3:
print "finding all MD arrays via mdadm --detail --scan"
devices_output = os.popen("%s --detail --scan" % bin).readlines()
raid_devices = []
for line in devices_output:
if "ARRAY" in line:
raid_device = line.split()[1]
if verbosity >= 2:
print "found array %s" % raid_device
raid_devices.append(raid_device)
if len(raid_devices) == 0:
print "UNKNOWN: no MD raid devices found on this machine"
sys.exit(UNKNOWN)
else:
raid_devices.sort()
return raid_devices
def test_raid(verbosity):
"""checks all MD arrays on local machine, returns status code"""
raid_devices = find_arrays(verbosity)
status = OK
for array in raid_devices:
if verbosity >= 2:
print 'Now testing raid device "%s"' % array
detailed_output = os.popen("%s --detail %s" % (bin, array) ).readlines()
if verbosity >= 3:
for line in detailed_output:
print line,
state = "unknown"
for line in detailed_output:
if "State :" in line:
state = line.split(":")[-1][1:-1]
if state != "clean" and state != "active":
raidlevel = detailed_output[3].split()[-1]
shortname = array.split("/")[-1].upper()
if state == "dirty":
# This happens when the array is under heavy usage but it's \
# normal and the array recovers within seconds
continue
elif "recovering" in state:
extra_info = None
for line in detailed_output:
if "Rebuild Status" in line:
extra_info = line
if extra_info:
print 'RAID WARNING: Array %s is in state' % shortname,
print '"%s" (%s) - %s' % (state, raidlevel, extra_info)
else:
print 'RAID WARNING: Array %s is in state' % shortname,
print '"%s" (%s)' % (state, raidlevel)
if status == OK:
status = WARNING
elif state == "unknown":
print "UNKNOWN: state of raid array %s is unknown" % shortname
status = UNKNOWN
else:
print 'RAID CRITICAL: Array %s is in state "%s" (%s)' \
% (shortname, state, raidlevel)
status = CRITICAL
return status
def main():
"""parses args and calls func to test MD arrays"""
parser = OptionParser()
parser.add_option( "-v",
"--verbose",
action="count",
dest="verbosity",
help="Verbose mode. Good for testing plugin. By default\
only one result line is printed as per Nagios standards")
parser.add_option( "-V",
"--version",
action="store_true",
dest="version",
help="Print version number and exit")
(options, args) = parser.parse_args()
if args:
parser.print_help()
sys.exit(UNKNOWN)
verbosity = options.verbosity
version = options.version
if version:
print __version__
sys.exit(OK)
result = test_raid(verbosity)
if result == OK:
print "RAID OK: All arrays OK"
sys.exit(result)
if __name__ == "__main__":
main()
____________________________________________________________________
**note I have not tested this yet, but plan to over the weekend**
Best regards,
Will
On 9/3/07, boergnet <[EMAIL PROTECTED]> wrote:
>
> Thanks for the info.
> I already filed a BUG Report.
> Did anyone try the hotfix from h h-2 ???
> http://www.nabble.com/Raid-tf4371923.html
>
> A.B.
>
>
> B Timotheus wrote:
> >
> > Sorry for the delay, I have been persuing other issues and just got Efw
> > online this morning.
> >
> > I get the same effect.
> >
> >>>> [EMAIL PROTECTED] 24.08.2007 16:55 >>>
> >
> > One question:
> > Can you take a look at the System Graphs and there at the Disk access per
> > Day.
> > My graph is completely empty since I am using EFW2.1.2 with Raid1
> > configuration.
> > Instead of the numbers under the graph, I get the word "nan"
> > Just wondering if you experience the same issue.
> >
> > Thanks,
> > A. B.
> >
> >
> > B Timotheus wrote:
> >>
> >> I am testing EWF and very pleased for the present.
> >>
> >> I was particularly happy with the ease of setting up raid1 on my box.
> >> Testing this I downed the machine and disconnected the power from one of
> >> the drives. It booted without any problems, but I cannot see that it is
> >> telling me that it has lost a HDD.
> >>
> >> Can anybody say if there is an alarm for this?
> >>
> >> Is there a simple way to recover from a HDD failure?
> >>
> >> Thanks,
> >> B. Timotheus
> >>
> >> -------------------------------------------------------------------------
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> >>
> >>
> >
> > --
> > View this message in context:
> > http://www.nabble.com/Raid-tf4317421.html#a12313947
> > Sent from the efw-user mailing list archive at Nabble.com.
> >
> >
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> >
>
> --
> View this message in context:
> http://www.nabble.com/Raid-tf4317421.html#a12463357
> Sent from the efw-user mailing list archive at Nabble.com.
>
>
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