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Code Issues Releases Wiki Activity

Check RAID status by parsing /proc/mdstat

This commit is contained in:
Jan Schulz-Hofen 2017-12-26 16:16:55 +01:00
parent 257983d559
commit 8d9915d59e
1 changed files with 24 additions and 0 deletions
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24
management/status_checks.py
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@ -166,6 +166,7 @@ def run_system_checks(rounded_values, env, output):
check_miab_version(env, output)
check_system_aliases(env, output)
check_free_disk_space(rounded_values, env, output)
check_raid_status(env, output)
check_free_memory(rounded_values, env, output)
def check_ufw(env, output):
@ -251,6 +252,29 @@ def check_free_disk_space(rounded_values, env, output):
if rounded_values: disk_msg = "The disk has less than 15% free space."
output.print_error(disk_msg)
def check_raid_status(env, output):
try:
with open('/proc/mdstat','r') as f:
mdstat = f.read()
except FileNotFoundError: return
mdstat = re.sub(r'^Personalities\s+:.+\n', '', mdstat)
for md in mdstat.split("\n\n"):
m = re.match(r'^(\S+)\s+:\s+(\S+)\s+raid(\d+).+?\[([U_]+)\](.+recovery\s+=\s+(\S+%))?', md.replace("\n",""))
if m:
device, active, level, updown, recovery = m.group(1, 2, 3, 4, 6)
if active == 'active' and '_' not in updown:
output.print_ok("RAID%s %s is active and in sync." % (level, device))
elif recovery:
output.print_warning("RAID%s %s is degraded but currently recovering at %s. More information:" % (level, device, recovery))
output.print_line("")
output.print_line(md, monospace=True)
else:
output.print_error("RAID%s %s is faulty or degraded. You should replace hard drives immediately. More information:" % (level,device))
output.print_line("")
output.print_line(md, monospace=True)
def check_free_memory(rounded_values, env, output):
# Check free memory.
percent_free = 100 - psutil.virtual_memory().percent