Get away from Shared mode

Question

I installed a DB on my Solaris 5.10 box. 11.2.0.3 is the version.
Using DBCA I selected the SHARED mode.
All my services I use are as follows:
OLTP_D =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = server-scan)(PORT = 8001))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = OLTP_DEV)
Besides my default services (DB NAME), all are like this. Over the past 5 days as our users have been testing they have been complaining about performance. Looking at the top wait events, the same one always pops up, VIRTUAL CIRCUIT WAIT. I know I should not have gone with SHARED mode. How can I get rid of it completely?
This is what I have so far for my parameter.
SQL> show parameter dispat
NAME                                 TYPE        VALUE
dispatchers                          string      (PROTOCOL=TCP)
max_dispatchers                      integerI have tried to NULL this field out but when I recycle the DB it just keeps coming back in there like its some sort of default value.
I actually have 2 DB's on this server and this other DB I was able to make that field empty. How can that be? Is there another parameter that I need to change? Something in the listener?
This is my listener in case someone wants to see it.
dd0152alyn{grid}2: lsnrctl
LSNRCTL for Solaris: Version 11.2.0.3.0 - Production on 31-JAN-2012 16:05:16
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Solaris: Version 11.2.0.3.0 - Production
Start Date                11-JAN-2012 18:55:21
Uptime                    19 days 21 hr. 9 min. 57 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/grid/product/gi11r2/network/admin/listener.ora
Listener Log File         /opt/grid/base/diag/tnslsnr/dd0152alyn/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.16.174.32)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.16.174.30)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
  Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "APPRAISAL" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
Service "DMS" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "IIMS_BATCH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
Service "IIMS_OLTP" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
Service "ODCAN" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "ODPH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
Service "SLF" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYMPH_BATCH" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYMPH_BRIDGE" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYMPH_DEVLPR" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYMPH_OLTP" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYMPH_WEBLOGIC" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
Service "SYS$STRMADMIN.STRMQ_PPH2_PPH.ODPH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
Service "WEBLOGIC" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
The command completed successfully
LSNRCTL> exit
dd0152alyn{grid}3: cat /opt/grid/product/gi11r2/network/admin/listener.ora
ODPH=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=ODPH))))            # line added by Agent
ODCAN=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=ODCAN))))          # line added by Agent
LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))            # line added by Agent
LISTENER_SCAN3=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN3))))                # line added by Agent
LISTENER_SCAN2=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN2))))                # line added by Agent
LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))                # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON                # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN2=ON                # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN3=ON                # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON              # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_ODCAN=ON         # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_ODPH=ON          # line added by Agent
dd0152alyn{grid}4: lsnrctl services
LSNRCTL for Solaris: Version 11.2.0.3.0 - Production on 31-JAN-2012 16:06:07
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
Services Summary...
Service "+ASM" has 1 instance(s).
  Instance "+ASM1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:31762 refused:0 state:ready
         LOCAL SERVER
Service "APPRAISAL" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:16 refused:0 state:ready
         LOCAL SERVER
Service "DMS" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "IIMS_BATCH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:16 refused:0 state:ready
         LOCAL SERVER
Service "IIMS_OLTP" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:16 refused:0 state:ready
         LOCAL SERVER
Service "ODCAN" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "ODPH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:16 refused:0 state:ready
         LOCAL SERVER
Service "SLF" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYMPH_BATCH" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYMPH_BRIDGE" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYMPH_DEVLPR" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYMPH_OLTP" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYMPH_WEBLOGIC" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
Service "SYS$STRMADMIN.STRMQ_PPH2_PPH.ODPH" has 1 instance(s).
  Instance "ODPH1", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:16 refused:0 state:ready
         LOCAL SERVER
Service "WEBLOGIC" has 1 instance(s).
  Instance "ODCAN1", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:113 max:1022 state:ready
         DISPATCHER <machine: dd0152alyn, pid: 6797>
         (ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))
      "DEDICATED" established:1 refused:0 state:ready
         LOCAL SERVER
The command completed successfullyAny suggestions?

Answer 1

I also get this
select * from gv$dispatcher;
   INST_ID NAME
NETWORK                                                                        
PADDR                            STATUS           ACCEPT   MESSAGES      BYTES
    BREAKS      OWNED    CREATED       IDLE       BUSY   LISTENER  CONF_INDX
         2 D000
(ADDRESS=(PROTOCOL=tcp)(HOST=dd0152blyn)(PORT=18598))                          
00000005B956C160                 WAIT             NO         209098   29817616
         0        202       1936     900352       2339          0          0
         1 D000
(ADDRESS=(PROTOCOL=tcp)(HOST=dd0152alyn)(PORT=44847))                          
00000005B956C160                 WAIT             NO         139336   18990411
         0        108       1646     901365       1362          0          0
2 rows selected.