• Backups are now over 8GB in size and are no longer listed in the Operations Console.
• Unable to manage or perform backups.
• The following error is seen in /opt/rsa/am/server/logs/ops-console.log:

@@@2014-11-28 18:17:25,003 ERROR [[ACTIVE] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)'] GUILog.traceException(587) | exception: 
java.io.IOException: unexpected EOF with 6144 bytes unread 
at org.apache.tools.tar.TarInputStream.read(TarInputStream.java:348) 
at org.apache.tools.tar.TarInputStream.skip(TarInputStream.java:160) ... 
@@@2014-11-28 19:06:07,762 ERROR [[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] GUILog.traceException(587) | exception: 
java.io.IOException: unexpected EOF with 5632 bytes unread 
at org.apache.tools.tar.TarInputStream.read(TarInputStream.java:348) 
at org.apache.tools.tar.TarInputStream.skip(TarInputStream.java:160)

• The Linux CLI does show the backups are being performed and can be listed.
• In the Operations Console, navigate to Maintenance > Backup and Restore > Manage Backups.  A maximum of four archived backups is configured, but the directory progress bar shows twelve backup files available.  The screen finally times out. A browser window with the message Session Timed Out appears.  
• According to the /opt/rsa/am/server/logs/AdminServer_access.log file, Manage Backups was invoked via Operations Console (Maintenance > Backup and Restore > Manage Backups):

15.156.2.83 2014-11-28 18:16:30 0.0070 POST /operations-console/OC_SelectManageBackupLocation.do 302 505 
15.156.2.83 2014-11-28 18:16:30 0.198 GET /operations-console/view/maintenance/oc_RetrieveBackupListProgress.jsp?ptoken=GC3V50WJE949HJB8 200 80 
... 
15.156.2.83 2014-11-28 19:03:18 0.0020 GET /operations-console/view/maintenance/oc_RetrieveBackupListProgress.jsp?ptoken=19DRUET1RQ7J499T 200 80 
15.156.2.83 2014-11-28 19:06:07 470.404 GET /operations-console/OC_ListManageBackups.do?pageaction=list&order=desc&sort=4&ptoken=4VPEZFPC1062G8DC 200 5364

• Checking the /opt/rsa/am/server/logs/ops-console.log, we can see the following error starting 2014-11-28 at 18:17:25 and that finished 2014-11-28 19:06:07. 

@@@2014-11-28 18:17:25,003 ERROR [[ACTIVE] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)'] GUILog.traceException(587) | exception: 
java.io.IOException: unexpected EOF with 6144 bytes unread 
at org.apache.tools.tar.TarInputStream.read(TarInputStream.java:348)
at org.apache.tools.tar.TarInputStream.skip(TarInputStream.java:160) 
... 
@@@2014-11-28 19:06:07,762 ERROR [[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] GUILog.traceException(587) | exception: 
java.io.IOException: unexpected EOF with 5632 bytes unread 
at org.apache.tools.tar.TarInputStream.read(TarInputStream.java:348)
at org.apache.tools.tar.TarInputStream.skip(TarInputStream.java:160)

1. Archive enough data out of the database to decrease its size below 8 GB.  To do this, archive authentication log data at 30 days or less instead of the default 90 days.  Archive out the administrative and system data at 14 days or less. 
2. Move or delete any existing backup files that are in /opt/rsa/am/backup before trying to backup the database again.