How To Fix S1307 - SAPOSCOL not running ? (shared memory not available )

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 307

• Message text: SAPOSCOL not running ? (shared memory not available )

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message S1307 - SAPOSCOL not running ? (shared memory not available ) ?

  The SAP error message S1307, which indicates that "SAPOSCOL not running" and "shared memory not available," typically arises when the SAP Operating System Collector (SAPOSCOL) is not functioning properly. This can lead to issues with the collection of operating system metrics, which are essential for monitoring and performance analysis in SAP environments.
  Cause:
  
  SAPOSCOL Not Running: The SAPOSCOL process may not be started or may have crashed.
  Shared Memory Issues: There may be problems with the shared memory configuration, such as insufficient memory allocation or incorrect settings.
  Operating System Issues: The underlying operating system may have restrictions or issues that prevent SAPOSCOL from running correctly.
  Configuration Errors: Incorrect configuration in the SAP system or the operating system can lead to this error.
  Permissions: The user under which SAPOSCOL is running may not have the necessary permissions to access shared memory.
  
  Solution:
  
  
  Check SAPOSCOL Status:
  
  Use transaction code SM50 or SM66 to check if the SAPOSCOL process is running.
  If it is not running, you can start it manually using the command line or through the SAP GUI.
  
  
  
  Start SAPOSCOL Manually:
  
  You can start SAPOSCOL manually by executing the following command in the command line:
  startsap oscol
  
  Alternatively, you can use the SAP Management Console (SAP MC) to start the process.
  
  
  
  Check Shared Memory Configuration:
  
  Ensure that the shared memory settings in the operating system are correctly configured. This may involve checking kernel parameters (like shmmax, shmall, etc.) on Unix/Linux systems.
  For Windows, ensure that the system has enough virtual memory allocated.
  
  
  
  Review Logs:
  
  Check the SAPOSCOL logs for any error messages that might indicate why it is not starting. Logs can typically be found in the dev_oscol file in the work directory of the SAP instance.
  
  
  
  Permissions:
  
  Ensure that the user running the SAP system has the necessary permissions to access shared memory. This may involve checking user groups and permissions on the operating system.
  
  
  
  Restart SAP System:
  
  If the above steps do not resolve the issue, consider restarting the SAP system, as this can sometimes clear up transient issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SAPOSCOL and shared memory issues for any specific patches or updates that may address known issues.
  Documentation: Refer to the official SAP documentation for detailed information on configuring and troubleshooting SAPOSCOL.
  Operating System Documentation: Consult the documentation for your specific operating system regarding shared memory configuration and limits.
  
  If the problem persists after trying these solutions, it may be necessary to engage SAP support for further assistance.