I have a Windows Server 2003 SP2 server which is running as Active directory for my testlab.com forrest.
I observed that "netlogon" service is frequently stopping automatically as it results unable to use the nwtwork resources.
For this I want to use a Failover server for AD, means I will create another server as ADC and then i will configur it into cluster so when the ADserver fails the ADC01 will come online automatically.
Is it possible? Can any one help to achieve this?
Update:
I have configired sites in my AD with 2 cases
Case 1: let say One Site is not not replicating properly,then how the domain users will authenticate? Also how could I know to which site the users are getting authenticated
Case 2: If my AD servers which holds all the FSMO roles is down with some reason,At this stage how could I get failover i.e how to automatically enable another server to hold the all FSMO roles and users authentication.
Please note The AD and all servers are running on Windows 2003 SP2 Enterprises as OS.
Best Answer
The other answers cover the fact that you can just add more DCs to add redundancy. One other thing that is relevant here is netlogon should not be stopping in a healthy environment. It would be a good idea to dig through the event logs and find out what is causing this to happen. I know of one known issue where netlogon will pause when disk space is low (less than 512MB seems to come to mind).