Hello,
i use a mirrored zfs pool of two hdds. thin provisioned.
For the vms I have discard enabled and ssd emulation.
now my pool is almost full with 12 TB.
First I ran the command in the VM: fstrim -av
130GB were cleaned.
Then I ran on the host: zpool trim dpool.
Error message: unsupported trim devices.
Shortly after that the used memory shrank from 8 TB to the "real" used 4 TB.
I do not understand this?
Why did this work despite the error message?
i use a mirrored zfs pool of two hdds. thin provisioned.
For the vms I have discard enabled and ssd emulation.
now my pool is almost full with 12 TB.
First I ran the command in the VM: fstrim -av
130GB were cleaned.
Then I ran on the host: zpool trim dpool.
Error message: unsupported trim devices.
Shortly after that the used memory shrank from 8 TB to the "real" used 4 TB.
I do not understand this?
Why did this work despite the error message?