SOLVED Vmware datastores enlarged after adding SSD cache maxing out disk sizes

[Tobias_Frajka]

Hi,
I added my SSD cache (WD Red 500GB SATA) while running 2x 4TB HGST. System is running under Vmware ESXi 7.0. After adding cache and copying some files, Vmware written out message, that datastore is full and that i have to empty some space or terminate the session.

In reality, the disk is only half full (TrueNAS is signalising 1,9TB used).
I don't know what this disk is, because in datastore manager, i can see FreeNAS_2 (main pool) and the second disk FreeNAS_2-000001 with size of 700MB.

How should I proceed? Thank you

 

[Arwen]

Please share the output of zpool status and zpool list -v in code tags.

Further, please use the correct ZFS terminology. Using "cache disk" is a bit vague, and could refer to a ZFS L2ARC. Or even a ZFS SLOG. The above requested output will show use how the disk is used.

 

[Tobias_Frajka]

Sorry for misleading. I've added ZFS L2ARC Cache.
I'm unable to start virtual machine running TrueNAS because of that problem. While booting and loading disks and pools, it spits out this error and can't continue.

Is there a way I can get to command shell without loading pools?

 

[Tobias_Frajka]

I have found my problem: I have created snapshots of my virtual machines and it started copying the whole datastore on the disk, which was already full and started spitting out these problems. So nothing related to this.