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View Full Version : Understanding ZFS snapshot feature



danik56
August 17th, 2017, 07:53 AM
I have installed Ubuntu 17.04 into a ZFS file system.
The ROOT is mounted at /zpool1/os/ubuntu
then I took a snapshot of zpool1/os/ubuntu and the size of the snapshot was less than 5GB.

Next I created another file system at /zpool1/os/myfiles and copied in around 35GB of data files.

Now, when I take a snapshot of zpool1/os/ubuntu the size of the snapshot is 40GB. Is this normal ?