zpool import -f -a -o cachefile=none -N
"This pool uses the following feature(s) not supported by this system:
com.delphix:log_spacemap (Log metaslab changes on a single spacemap and flush them periodically.)
All unsupported features are only required for writing to the pool.
The pool can be imported using '-o readonly=on'."
I have log_spacemap enabled.
zpool import -f -a -o cachefile=none -N log_spacemap (Log metaslab changes on a single spacemap and flush them periodically.)
"This pool uses the following feature(s) not supported by this system:
com.delphix:
All unsupported features are only required for writing to the pool.
The pool can be imported using '-o readonly=on'."
Accepted for post 0.8.1: https:/ /github. com/zfsonlinux/ zfs/pull/ 8442#issuecomme nt-511918033
(But this could happen with the import of ANY zpool from another system. For instance from a non zfsonlinux system with different feature flags set.)