ARC and L2ARC reporting broken?

[norbs]

I recently backed up all my data and rebuilt my pool.
While restoring the data I noticed something a bit odd.
My ram is 32GB and my actual L2ARC device is only 256GB.
However, according to the UI I am using 388GB of ARC and 2.2TB of L2ARC... Now I'm not a mathematician but that seems off.

I'm on FreeNAS-9.10.2-U3 (e1497f269). I seen a similar issue on reddit without any answers.

 

[Spearfoot]

I recently backed up all my data and rebuilt my pool.
While restoring the data I noticed something a bit odd.
My ram is 32GB and my actual L2ARC device is only 256GB.
However, according to the UI I am using 388GB of ARC and 2.2TB of L2ARC... Now I'm not a mathematician but that seems off.
View attachment 18462

I'm on FreeNAS-9.10.2-U3 (e1497f269). I seen a similar issue on reddit without any answers.

Yes, I see the same thing on my one system equipped with an L2ARC device. There's an L2ARC usage 'accounting' error in 9.10.x which is supposed to be fixed in the upcoming version 11. This is just a reporting bug which doesn't pose any danger to your data.

 

[norbs]

Yes, I see the same thing on my one system equipped with an L2ARC device. There's an L2ARC usage 'accounting' error in 9.10.x which is supposed to be fixed in the upcoming version 11. This is just a reporting bug which doesn't pose any danger to your data.

OK good, thanks for the quick response. I had to double check to make sure I didn't make one of my 4TB HDDs a l2arc device lol...

 

[keylevel]

I'm seeing this with 11.0U2 - 80 GB L2ARC has 116 GB on it!