title: ORA-01034: Oracle not available, background process 'QMNC' did not start
body: <p>I am trying to create to connect with oracle sqlplus. It gives error :</p>
  
  <pre><code>ORA-01034: Oracle not available
  ORA-27101: shared memory realm does not exist
  Process ID: 0
  Session ID: 0 Serial number: 0
  </code></pre>
  
  <p>I checked the alert_geis.log and got the error(geis is the SID_NAME):</p>
  
  <pre><code>    Trace file e:\program\oracle\diag\rdbms\geis\geis\trace\geis_ora_6176.trc
  Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  Windows NT Version V6.1 Service Pack 1 
  CPU                 : 8 - type 8664, 4 Physical Cores
  Process Affinity    : 0x0x0000000000000000
  Memory (Avail/Total): Ph:4022M/8122M, Ph+PgF:8131M/16243M 
  Instance name: geis
  Redo thread mounted by this instance: 1
  Oracle process number: 19
  Windows thread id: 6176, image: ORACLE.EXE (SHAD)
  
  
  *** 2014-05-09 18:53:19.653
  *** SESSION ID:(22.3) 2014-05-09 18:53:19.653
  *** CLIENT ID:() 2014-05-09 18:53:19.653
  *** SERVICE NAME:(SYS$USERS) 2014-05-09 18:53:19.653
  *** MODULE NAME:(oradim.exe) 2014-05-09 18:53:19.653
  *** ACTION NAME:() 2014-05-09 18:53:19.653
  
  kwqmnich: current time:: 10: 53: 19: 0
  kwqmnich: instance no 0 repartition flag 1 
  kwqmnich: initialized job cache structure 
  **ORA-00020: No more process state objects available
  ORA-01092: ORACLE instance terminated. Disconnection forced
  ORA-00450: background process 'QMNC' did not start
  ORA-00444: background process "QMNC" failed while starting
  ORA-00020: maximum number of processes () exceeded**
  
  *** 2014-05-09 18:53:20.011
  USER (ospid: 6176): terminating the instance due to error 450
  </code></pre>
  
  <p>I google it, but there was little helpful information about 'QMNC'. While I have checked the logs carefully, couldn't find the reasons of error.
  I appreciate someone whom will fix it.
  Thanks advance.</p>