SNMP Get "is < than" fails when value is modifi

Bobzbobz · Post by **Bobzbobz** » Thu Mar 10, 2016 1:37 am

Hello

HM 10.08 Beta.

I am experiencing a problem with the SNMP GET-test, when I use the "is < than" (is lower than, right?) and changes the alert-value from 1TB to eg. 3TB.

I am using the test on 2x QNAP-NAS.
This one fails:

If I then change the alert-value to 1TB, then it works..

Regards,
Soren

KS-Soft · Post by **KS-Soft** » Thu Mar 10, 2016 3:29 am

Looks like your SNMP agent returns string, not a number.
String "24.22 TB" < "3 TB" because "2"<"3"

Perhaps this device can provide correct int64 counter as well?

Otherwise you will need to use Optional status processing options, e.g. Use warning status if (('%SuggestedReply%' getnumberwithdot 1)>2) and ('%SuggestedReply%' getword 2)=="TB"))

Regards
Alex

Bobzbobz · Post by **Bobzbobz** » Thu Mar 10, 2016 4:52 am

Hello

I have added the text:

(('%SuggestedReply%' getnumberwithdot 1)>2) and (('%SuggestedReply%' getword 2)=="TB")

to "Optional status processing" (Use 'Warning' status if:).

But now I receive status "Warning" all the time.

KS-Soft · Post by **KS-Soft** » Thu Mar 10, 2016 7:34 am

All the time? Even if Reply='1 TB'? or "2.00 TB"?

Regards
Alex

Bobzbobz · Post by **Bobzbobz** » Thu Mar 10, 2016 7:44 am

Yes - I have also tried adding () arround the whole text.

KS-Soft Europe · Post by **KS-Soft Europe** » Thu Mar 10, 2016 9:19 am

Please use the following expression for "Use Warning status if" expression:
(('%SuggestedReply%' getnumberwithdot 1)<3) and (('%SuggestedReply%' getword 2)=="TB")

KS-Soft · Post by **KS-Soft** » Thu Mar 10, 2016 11:56 am

>>All the time? Even if Reply='1 TB'? or "2.00 TB"?
>Yes

Your screen shot shows "24.22 TB"
24.22 > 2 so everything works correctly.

Regards
Alex

Bobzbobz · Post by **Bobzbobz** » Fri Mar 11, 2016 1:11 am

Hello again

I inserted the new expression.
If I change the value to "2 TB", then it says "GOOD".
If I change it to anything above "2 TB", then it says "BAD".

This seems to work - thank you.

But how will the test reply (good/bad), when the reply-value changes to below 20 TB?

Regards
Soren

KS-Soft · Post by **KS-Soft** » Fri Mar 11, 2016 7:02 am

When Optional status processing module "sees" numbers it compares them as numbers. That's why I recommended to use Optional status processing.
2, 20, or 200 - no problem.

If Reply can use some other units, e.g. KB, MB, then adjust expression to your needs

Regards
Alex