DP 6.0 is well out of support. I was not aware of the command 'omnidbutil -change_host_name', I couldn't find it in my documentation, but, what I have only goes back to 6.11. Could you have meant 'omnidbutil -change_cell_name' and 'omnidbutil -show_cell_name'?
At the command prompt on the cell manager run
hostname
nslookup [cm_hostname] Don't include the [ ] marks
to see if they match each other
If you are resolving to 'Files', you may need to check the /etc/hosts file to assure that hostnames are in the correct order
ip.address hostname alias
Run
omnidbutil -show_cell_name
again to see what it comes back with. Does it match what the 'hostname' command says?
One thing that may work out for you is to run this command
omnidbutil -change_cell_name [old hostname] Do not include the [ ] marks
-change_cell_name [old_host]
This option changes the owner of the CDB to the current Cell Manager. It also
changes all references in the CMMDB from old_host to the current Cell
Manager. It modifies all media entries within the MMDB or CMMDB associated
with the original Cell Manager (old host).
If the old_host parameter is not specified, omnidbutil determines the previous
owner of the CDB (old host) from the database itself.
