Error:
ST06 does not show CPU Utilization and shows the error SAPOSCOL not running ? (shared memory not available )
Resolution:
As a initial trouble shooting check whether saposcol is ruuning or not.
Login in to os level with sidadm user and check os col running?
Navigate to /usr/sap/sid/instno/exe and start the collector. Check the status in ST06.
To know the status use following oscol commands.
saposcol -l: Start OS Collector
saposcol -k: Stop OS Collector
saposcol -d: OS Collector Dialog Mode
saposcol -s: OS Collector Status