How to get email alert when swapspace over threshold

[leebrown66]

Hi,

I've just taken on the administration of a FreeNAS 11.1-U1 box. Users were complaining their VM's were slow and I saw that the 6GB of swap was totally exhausted. I shut down all the VM's (which made no difference) and rebooted the box.

My question is can FreeNAS send me an email when swap use goes over a threshold (say 15%) or do I just need to write a cron job for this? I could not see any configurable alerts.

I'll be upgrading to U6 this weekend, I saw some memory leaks were fixed in that.

Thanks -- lee

 

[garm]

You really shouldn’t be swapping at all, you need more RAM

 

[Hazimil]

Hi, you might find the following thread useful. Has a very handy script, which I think will meet your needs.

https://forums.freenas.org/index.ph...ny-used-swap-to-prevent-kernel-crashes.46206/


Jonathan

 

[leebrown66]

I wrote the cron job so I now know if the boxes are in distress.

Since the upgrade to U6 I have seen zero swap usage.