[Samba] High Avalaibility with Samba

[Sebastien Govaere]

Hello,

On my network, I have two servers servA and servB wich have a set of 
directories always synchronized.
I need to install Samba on each server with High Availability (fail 
over) between them: in normal condition, Samba on servA must serve the 
network with the files requested by windows clients and in case of 
inaccessibility of servA, servB must answer to the request for the same 
file.
Any idea ?
If it is a reqest to write (modify) the file, is there a solution that 
work with lock shared between the two servers ?

Sébastien