i have an exhange server 2007 sincle copy cluster on SAN and it is working fine. i have 2 server for AD (one PDC and the other is additional domain controller). i have 2 server for mailbox role (my active and passive cluster nodes) with shared storage on a SAN. i have 1 server as hub and client access server role. and finally one server for dpm all server joined to a domain and have windows x64 and configurd as microsoft and others recommended how to!!! 1. no error in my active directories or dns and each server has its host records usually all server have no error or warning (eles if i restart server or some services) my dpm agents installed on all server succesfully and i get backup from all of them. BUT the problem is : when i try to add another protection group it shows my san groups i mean : the problem is when i try to add a protection group for san it shows my "cluster name" as "EXCLUSTER" and ----> "clustergroup" and "CMS1" as my 2 cluster group the first for clustergroup (ip,name serve and 1 storage resource) and second one(CMS1) for clustered mainbox server. DPM in wizard "create new partition group " stop and does not go to next step. can any one help me please i checked installation and failover and everything may times. thanks for any help
