samba - Feb 2014 - samba4 ctdb and file replication with unison between 2 remote sites

Hello,

I have 3 remote sites joined by vpn
1 site is the pdc
2 other sites operating in RODC

Shares are replicated with unison between sites.

I would like to go read-only shares on the remote RODC if remote sites are
down.

Any Idea ?

Thx for ideas and return.

Best regards.

Cl?ment