SAPOSCOL is not working(shared memory not available)

Question

Hi All,
One of my  Prodn appln server instance is not displaying the data in tcode OS06,
Even though other instances of app server was able to display;
Getting message : SAPOSCOL is not working(shared memory not available)
Envirn :
Kernel 640 patch 196 ;  64 bit
Collector Versions
  running                               COLL 20.94 640 - V3.73 64Bit
  dialog                                COLL 20.94 640 - V3.73 64Bit
What could be reason for it ? Please suggest possible solutions..
Thanks in Advance

Answer 1

Hello Ramakrishna,
I suggest you to kindly go to OS level and restart the saposcol service and check if that works.
<b>No values and/or problems with shared memory</b>
Check whether saposcol belongs to user 'root' and whether the authorizations are correct: -rwsr-x---
Because the values of saposcol must be visible for all R/3 systems/instances on a host, saposcol writes data in the shared memory segment with key 1002. This shared memory segment must not be changed (for example, by setting profile parameter ipc/shm_psize_1002). In all profiles, check whether the parameter ipc/shm_psize_1002 is set. If it is, this parameter must be removed from the profiles ---> Note 37537.
For further details please refer SAP Note 189072 , 726094.
Regards,
Prem