mirroring a loop device across an ssh connection

[Martin Schröder]

2006/12/1, Jason <openssh at lakedaemon.net>:
> Thanks, I hadn't stumbled across that yet.  There is only one small
> problem with it, which I failed to mention in my initial mail.  I can't
> assume I have root access to the remote machine.  I might be able to get
> an 'sudo losetup ...' approved, but most likely I'll need to mirror the
> file descriptor of the file container over the ssh connection.

How about unison? Do you really have to sync a file system?

Best
   Martin