I'm banging my head against walls for weeks with this problem.
We have had standalon ZCS 6.0.7 FOSS on Ubuntu with working Samba integration, i.e. deployed zimbra_posix and zimbra_samba zimlets.
After adding a second machine as replica,we had to deploy the zimlets on this machine as well. Unfortunately, at this stage the Samba configuration options in ZimbraAdmin disappeared.The Posix options remain.
Undeploy and redeploy the Zimlets don't make any difference.
The log files don't indicate any failure.
Please, can someone tell me, where to look for the cause of the problem and/or how to resolve it.