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#!/usr/bin/env python
#
# very simple python script to parse out /proc/mdstat
# and give results for nagios to monitor
#
import sys
import string
devices = []
try:
mdstat = string.split(open('/proc/mdstat').read(), '\n')
except IOError:
# seems we have no software raid on this machines
sys.exit(0)
error = ""
i = 0
for line in mdstat:
if line[0:2] == 'md':
device = string.split(line)[0]
devices.append(device)
status = string.split(mdstat[i+1])[3]
if string.count(status, "_"):
# see if we can figure out what's going on
err = string.split(mdstat[i+2])
msg = "device=%s status=%s" % (device, status)
if len(err) > 0:
msg = msg + " rebuild=%s" % err[0]
if not error:
error = msg
else:
error = error + ", " + msg
i = i + 1
if not error:
print "DEVICES %s OK" % " ".join(devices)
sys.exit(0)
else:
print error
sys.exit(2)
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