9 Replies Latest reply on Nov 27, 2013 1:07 PM by d827a00e-d62a-451f-8932-56837a345f91

    ORA-27123 with Linux-x86_64 Error: 49: Protocol driver not attached

    d827a00e-d62a-451f-8932-56837a345f91

      Hello,

       

      Oracle Database 11.2.0.3.0 on RHEL6.2 x86_64

       

      I often see the below errors when starting the database instance.

       

      SQL> Connected to an idle instance.

      SQL> ORA-01034: ORACLE not available

      ORA-27123: unable to attach to shared memory segment

      Linux-x86_64 Error: 49: Protocol driver not attached

      Additional information: 393227

      Additional information: 69

      Additional information: 10

      SQL> Disconnected

       

      What should I do in order to prevent these errors? Please suggest.

       

      Thanks.