Service OK whereas not OK

[Frédéric GRANAT]

Hi,

/usr/local/nagios/libexec/check_wmi_plus.pl -H xxxxxxxxx -u domcompta/xxxxxx -p dsisvc -m checkdrivesize -a 'C|D|E|Q|H|I|L|M|N' -w _FreeGB=20G -c _FreeGB=10G

means I want to have :
a warning when there is 20 Gb of free space left
a critical when there is 10 Gb of free space left

[scottwilkerson]

It is supposed to be without the G in the command.

From the help

Code: Select all

EXAMPLES WITH FIELDS
 for MODE=checkdrivesize:
 _UsedGB=10              Check if the _UsedGB field is < 0 or > 10, (outside the range of {0 .. 10})

like so

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/usr/local/nagios/libexec/check_wmi_plus.pl -H xxxxxxxxx -u domcompta/xxxxxx -p dsisvc -m checkdrivesize -a 'C|D|E|Q|H|I|L|M|N' -w _FreeGB=20 -c _FreeGB=10

HOWEVER, you have drives that are reporting negative space and utilization which is going to cause the plugin to not function as expected. If free + used doesn't equal total, there is going to be a problem. (drive D in this example)

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[root@nagiosxi libexec]# ./check_wmi_plus.pl -H xxxxxxxxx -u xxxxxxxxxx -p xxxxxxxx -m checkdrivesize -a 'C|D|E|Q|H|I|L|M|N' -w _FreeGB=20 -c _FreeGB=10
CRITICAL - [Triggered by _FreeGB>10] - C: Total=59.66GB, Used=15.29GB (25.6%), Free=44.37GB (74.4%) CRITICAL - [Triggered by _FreeGB>10] - D: Total=70.00GB, Used=-32.11GB (-45.9%), Free=102.11GB (145.9%) CRITICAL - [Triggered by _FreeGB>10] - E: Total=520.00GB, Used=342.66GB (65.9%), Free=177.34GB (34.1%) CRITICAL - [Triggered by _FreeGB>10] - F: Total=25.00GB, Used=1.77GB (7.1%), Free=23.22GB (92.9%) |'C: Space'=15.29GB; 'C: Utilisation'=25.6%; 'D: Space'=-32.11GB; 'D: Utilisation'=-45.9%; 'E: Space'=342.66GB; 'E: Utilisation'=65.9%; 'F: Space'=1.77GB; 'F: Utilisation'=7.1%;

[Frédéric GRANAT]

Hi,

There's no lack of space on disks of that server (checked by log in on that server)

Without using "G"
1) Not all the drives report negative space
2) All the drives have sufficient space so all alerts are wrong.

With using "G" : no alert which is correct

Conclusion : using a check without "G" doesn't work

[kyang]

means I want to have :
a warning when there is 20 Gb of free space left
a critical when there is 10 Gb of free space left

Based on this, you would want -w _FreeGB=20: -c _FreeGB=10: In this case, the : symbol means less than.
http://nagios-plugins.org/doc/guideline ... HOLDFORMAT

Going back to the help documentation examples.

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EXAMPLES WITH MULITPLE SPECIFICATIONS
for MODE=checkdrivesize:
-w _UsedGB=10 -w 15 -w _Free%=5: -c _UsedGB=20 -c _Used%=25 
This will generate a warning if
    - the Used GB on the drive is more than 10 or
    - the used % of the drive is more than 15% or
    - the free % of the drive is less than 5%

Here are my examples.

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[root@localhost libexec]# ./check_wmi_plus.pl -H xxx -u xxx/xxx -p xxxx -m checkdrivesize -a 'A|C' -w _FreeGB=250: -c _FreeGB=210:
OK - A: Total=465.75GB, Used=0.10GB (0.0%), Free=465.65GB (100.0%)     WARNING - [Triggered by _FreeGB<250] - C: Total=451.93GB, Used=227.31GB (50.3%), Free=224.62GB (49.7%)     |'A: Space'=0.10GB; 'A: Utilisation'=0.0%; 'C: Space'=227.31GB; 'C: Utilisation'=50.3%;

My A: drive is still at 465GB free, but my C: drive is at 224GB free. Therefore my warning threshold of less than 250GB is correct and valid. -w _FreeGB=250:

Therefore, -w _FreeGB=20: -c _FreeGB=10: is what you want. As these thresholds will be for 20/10GB of free space left.

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[root@localhost libexec]# ./check_wmi_plus.pl -H xxx -u xxx/xxx -p xxx -m checkdrivesize -a 'A|C' -w _FreeGB=20: -c _FreeGB=10:
OK - A: Total=465.75GB, Used=0.10GB (0.0%), Free=465.65GB (100.0%)     OK - C: Total=451.93GB, Used=227.44GB (50.3%), Free=224.49GB (49.7%)     |'A: Space'=0.10GB; 'A: Utilisation'=0.0%; 'C: Space'=227.44GB; 'C: Utilisation'=50.3%;

I hope this helps! Try it out and let us know.

[Frédéric GRANAT]

Hi,
Thanks, it works like that.
You can close the post.

Rgds,

Frederic

[kyang]

Sounds great! I'll be closing this thread!

If you have any more questions, feel free to create another thread.

Thanks for using the Nagios Support Forum!