Is there a way to set multiple ZFS filesystem properties at once?
Depends on the implementation.
On FreeBSD (10.3-STABLE) you can:
# zfs create zfsroot/test # zfs set compression=lzjb sync=disabled zfsroot/test #
And on Solaris (11.2) you can't:
# zfs create rpool/test # zfs set compression=on sync=disabled rpool/test cannot open 'sync=disabled': invalid dataset name #
Since I don't have a Linux with zfs, this one is for you to discover. :)
I realise this might be a bit late, but that's what the
-O (uppercase letter) is for: the pool's root dataset. Lowercase letter
-o is for pool properties. I used this in Ubuntu/ZoL but FreeBSD seems to have it too. Oh would you look at that, seems Solaris does too!