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1887325 - ASCS cannot start during upgrade / installation


During system upgrades or installations, the respective responsible tool fails while trying to start the ASCS / SCS instance. 

You run command “sapcontrol -nr <instance number> -function GetProcessList” and it shows both Enqueue and Message Server services stopped: 

msg_server, MessageServer, GRAY, Stopped, , , <process_ID>
enserver, EnqueueServer, GRAY, Stopped, , , <process_ID>

The upgrade / installation process cannot continue.



  • SAP Systems based on SAP NetWeaver;
  • Database Independent;
  • This issue is usually observed in AIX operating systems.


SAP NetWeaver all versions


SCS, ASCS, fail, start, credentials, phase, sapinst, SUM, ehp, getprocesslist, gray, stopped, /proc, procfs, sapstartsrv , KBA , BC-CST-STS , Startup Service , BC-UPG , Upgrade - general , BC-INS , Installation Tools (SAP Note 1669327) , BC-OP-AIX , IBM AIX , How To

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