Hi Igor
Regarding the queries above - couple of things :
a) Are you getting the ST22 dump for the SAP Perf Monitor Job ? Is the Perf Monitor job failing .. If yes , please share the job log.
b) For the SAPOSCOL - check this note : 548699 - FAQ: OS collector SAPOSCOL
Many times SAPOSCOL will not start due to shared memory issue.. the points in the above note contain the standard steps to resolve this issue..
Please see if it helps ..
Thanks
Rishi