SpectroSERVER process seems to "hang" during model activation at SpectroSERVER startup when activating the RTM Inventory model.
Edit the $SPECROOT/SS/.vnmrc file and set the "spm_wait_activate" parameter to "yes" then restart the SpectroSERVER process.
Please reference the "Delayed SpectroSERVER Activation Resulting from External Reads" section of the documentation for more information.
Also reference the following knowledge documents:
220299- How can I speed up model activation time when starting SpectroSERVER?
31379- How to reduce model activation time
45388- The RTM_Inventory model (for Service Performance Manager - SPM) taking hours to activate in CA Spectrum.