Nservice not working

Hi , I have 2 Domino Server configured with cluster services.

serv1 : serverdom1

serv2 : serverdom2

before 1 week ago the both server are running perfectly with all replications.

Now I can access only serverdom1 ,but I can’t access the serverdom2 . it always give msg. error “server not responding”

I notice the service Lotus Domino Server (LotusDominoData)from Windows Services "D:\Lotus\Domino\nservice.exe =D:\Lotus\Domino\notes.ini " and I can’t STOP or RESTART even to control this services.

please advice.

Regards , Hameed Essa

Subject: nservice not working

Hallo , any help .