[Samba] SAMBA 2.7 to SAMBA 3.0

[azzouz]

hi,

I want to migrate the samba PDC server release 2.7 to samba PDC server 
release 3.0
Knowing that we use LDAP for all account and authentification how to 
migrate also the SID so i have not to reintégrate the machine in the 
domaine. Are there some tools that does that.
If someone have already done so that migration i would happy de know his 
experience.

Thanks.

 sincerely