Authentication Manager 7.x stops authenticating and hanging - unable open any tab in Security and Operations onsole

Problem is intermittent and seems to randomly occur from 4 hour to two-day intervals.

Oracle trace logs are showing this error:

error 221 detected in background process
OPIRIP: Uncaught error 447. Error stack:
ORA-00447: fatal error in background process
ORA-00221: error on write to control file

Another symtom is you may see this error in the alert_XXXXXXX.log  ( in ..\RSA Authentication Manager\db\admin\XXXXXX\bdump) 

KCF: write/open error block=0x2fc online=1
     file=5 C:\PROGRA~1\RSASEC~1\RSAAUT~1\DB\ORADATA\KLKDSKEA\RSA_DATA.DAT
     error=27072 txt: 'OSD-04008: WriteFile() failure, unable to write to file
O/S-Error: (OS 33) The process cannot access the file because another process has locked a portion of the file.'

 or:

LGWR: terminating instance due to error 340

Site is either performing live backups of the Oracle database using a third party backup tool or running an Antivirus scan of the Oracle files. In either event, an Oracle control file is locked and cannot being written to.