Why doesn the space that is reported by the zpool list command and the zfs list command match?
The SIZE value that is reported by the zpool list command is generally the amount of physical disk space in the pool, but varies depending on the pool’s redundancy level. See the examples below. The zfs list command lists the usable space that is available to file systems, which is disk space minus ZFS pool redundancy metadata overhead, if any. • A non-redundant storage pool created with one 136-GB disk reports SIZE and initial FREE values as 136 GB. The initial AVAIL space reported by the zfs list command is 134 GB, due to a small amount pool metadata overhead.
