zfs dump to non-zfs host

[Randy Bush]

currently, my dump server is a large non-zfs raid to which i use dump
over ssh to a remote host, as in

   /sbin/dump 0Luaf - /dev/twed0s1a | $SSH $BSYS "/bin/cat > $DDIR/base"

now i have a zfs host that i want to dump to this server.  yes, i know i
can snapshot on the zfs system itself.  but what if it goes completely
dead?  it is in an earthquake zone, ...

/sbin/dump does not work, of course.

files created with zsend might not be decodable in a future version, so
i can not zsend | to it.

clue bat, please.

randy