Nagios Support Forum

Hi Team,

I am trying to set the disk space alerts based on GB instead of % since the disk size is large.
So I set critical alert at free space less than 200 GB. The drive size is 14 TB. I used the below command in the argument.

-t 'xxxxxxxx' -P 5693 -M 'disk/logical/M:|/free' -w 250 -c 200: -u G

When I run it to see the result I get this

OK: Free was 2116.22 GB | 'free'=2116.22GB;250:;200:;

But the actual free size on the drive is 1.92 TB = 1966 GB. So there is a difference of 160 GB.

When I changed GB to MB in the command the difference was down to 100 GB.

So is it because of conversion ? Still looks like a huge difference when setting up the alerts. Do you guys have any advise?

What does this one show?

Tried what you shared. -t '***********' -P 5693 -M 'disk/logical/C:|/free' -w 250: -c 200: -u Gi
It gave a weird result. For the same server it is now showing only 30 GB free whereas the free space is 1.2 TB.

CRITICAL: Free was 30.27 GiB | 'free'=30.27GiB;250:;200:;

Your original post was using M: but the one you just sent is showing C:, could that be related?

Sorry, my bad.
Yup, looks like using Gi gives a close result. This should solve the issue. Thanks.

sahilrana wrote:Sorry, my bad.
Yup, looks like using Gi gives a close result. This should solve the issue. Thanks.

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