backup program for xenix?

[g liu]

is there a pd/freely copyable backup program that will work on xenix?
backup to floppy, that is.
is there a better way than tar+split+cp to floppy?
i just want to do strait complete file backups. i also would like
a reasonable ability to recover from floppy disk errors.
error correction would be good, but at least having errors wipe out
only one file rather then the rest of the set would be nice.

gwoho liu.