URGENT: DBIF_REPO_SQL_ERROR - not even OSS has been able to help!
Since May 1th we have been having a very serious problem with the general performance generating dump code ORA-03113 and ORA-3114 which has grown constantly. We have had to reinitiate the system repeatedly.
The following activities were made:
 Replacement of a damaged disc of a volume used by the server located
in SAN, which generated a process of reconstruction of RAID 5
 Approximately 2 Days after the process had been initiated there's a problem of slowness and disconnection of users generating the following errors:
With the following detail:
ORACLE error 3113 encountered ORA-03113: communication end-of-cases
out on channel.
ORACLE error 3114 encountered ORA-03114: not connected to ORACLE.
 We have increased the Redo log to 100 Mb. Alse we have reorganized table CE4VE01. Possibility of corrupt blocks in the data base was verified.
 We have Installed local additional discs to the server for the handling
of the paging files that they were in SAN
 The network cables were changed, they were changed to different ports, and extended to 100 Mbps Full Duplex in switch
 We've changed the Network cards by new ones of the
same original model
 The Drivers were updated and we verified the presence of the latest firmware
 We have made tests of stress to all hardware, which indicated
that there were no problems in the components
At the moment the infrastructure of communications was OK, but the errors continued as well as the shutdowns of the system
We have also followed the OSS instructions described below:
We setted all the database parameter as per the SAP note 124361.
We applied the latest oracle patch level as per the SAP note 539921.
Thanks in advace for your help!,