Is there any procedure to change hostname of Atrium/Remedy SSO and TrueSight Operations Management components like TSPS, TSIM and Integration Services.?
Currently, there is no way to change hostname of TSPS and Atrium/Remedy SSO servers post installation.
However it is possible to change TSIM hostname with "pw system change hostname" command, for more details please refer documentation at below link.
And Integration Service hostname can also be changed from TrueSight Presentation console as explained in documentation at below link.