I think this is a basic question. We already have a OSD server but we want to add a new one OSD server. I am not sure what account i should use.
This will actually be your own account, so it can be whatever you want. Just be sure to document it somewhere like a password vault.
Thank you. Just now i used my admin account. I was just hesitant to use it thinking what happens if i change my password and will the OSD service will be stopped
This account is local to the OSD server and not tied to AD. Think of like a back door/initial admin login for the OSD servers Web Interface. Typically you will never use the Web Interface unless support asks you to do so.