OEM Configuration issue

We have Oracle 10g running on AIX.

I am trying to get OEM working but getting following errors after this command: emctl start

EM Configuration issue. /u01/app/product/10.1.0.2/orc-prod.gilbarco.com_gvr1 not found

have you configured it?

Yes it used to work. Then we had to reboot Unix Server and it stopped working.

have you by any chance changed the name of the server at all

Server name never changed it oracle_prd

best bet is to reconfigure it as it cant work itself out anymore

emca -r

WHen you asked me if server name was changed executed couple Unix Commands and here what I found. Not sure if this could make OEM not to work

#nslookup
Name: orc-prod.gilbarco.com
Address: 10.28.13.5

#hostname
oracle_prd

See how hast name has underscore and nslookup desh (oracle_prd vs orc-prod.gilbarco.com)

would not nslookup have underscore just like server name ?

well they are very different - you need to resolve that - em thinks its called ord-prod.gilbarco when its really called oracle_prd