[Samba] Changing the domain admin password

[Steve Thompson]

Samba 3.x.y (various) on CentOS 5.4 x86_64 with the ldapsam backend; one 
PDC, two BDC's and about a dozen member servers. The configuration file on 
each of course specifies the "ldap admin dn" and each system has the 
associated password specified with "smbpasswd -w". Question is: how often 
is the ldap admin actually used for anything, such that if I change the 
real password associated with the account, how much grace do I get before 
I have the run "smbpasswd -w" on each member server, all without 
restarting smb?

-steve