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Polling incorrect volume data resulting in false alerts

rmullal

Every once in awhile Orion will poll the incorrect data for a volume on some of our VMs. See screenshot:

It's polling a "-2" value which doesn't make much sense to me. Has anyone seen this before?

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vinay.by

Check for the trend, does it always happen around 2:15 AM ? That's the default database archive time. Its probably because of the load on your DB at that time, I could be wrong as well.

rmullal

that's a good thought. i just checked and unfortunately the last time this happened was on January 9th around 9PM and it polled it for a value of "0":

vinay.by

I have seen them in the past when volumes are removed, renamed or dismounted (I mean negative values on a volume), but in your scenario it could be different, I would suggest you to raise a case if you do not receive a response from others on thwack.

rmullal

Yeah, i plan on opening a case with support if i can't get an answer here.

i'm just confused why this would trigger in the first place because it doesn't seem to meet the trigger condition:

vinay.by

Looks like it does meet your trigger condition -> (Volume - Available space <= )

rmullal

In the screenshot of the performance analysis, it is showing disk space used. if it polls a "0" or "-2" for disk space used, isn't the Volume Available Space as much as the drive holds? For instance, if it is a 100GB disk, and polls a value of 0, there is 100GB available, right?