When I was trying to add a new server to the driverset, I received the
message saying "The replica type on the selected server is not a
non-filtered writable replica. Do you want to change the replica on this
server to a read/write replica?".

What replica does it refer to? eDirectory replica? If yes, this new
server is OES2 Linux server which holds the master copy of eDirectory. I
am not sure if I should hit "yes" or not.

Can someone advise on this?

Thanks a lot!!!