Impossible to start DUAS on a AIX cluster

Issue/Introduction:

Error Message :
In the universe.log file:
=======================================================================

23/10/2015 15:41:20: file open error 13: Permission denied (/app/list/di/universe/UNIPRD/data/exp/u_fmca60.dta)
| 2015-10-23 15:41:20 |ERROR|X|IO |pid=8061172.1| u_io_error | file open error 13: Permission denied (/app/list/di/universe/UNIPRD/data/exp/u_fmca60.dta)
| 2015-10-23 15:41:20 |ERROR|X|IO |pid=8061172.1| u_cal_load_calendars | Error 15: unable to read calendar file (pntsup)
| 2015-10-23 15:41:20 |ERROR|X|IO |pid=8061172.1| o_init_calendar | Unable to load calendars from IO (error -1)
| 2015-10-23 15:41:20 |FATAL|X|IO |pid=8061172.1| u_io_srv_main | IO server X init calendar error -1.
=======================================================================

Patch level detected:Dollar Universe 6.3.00
Product Version: Dollar.Universe 6.3.01

Description :After a cluster switching on the second member the starting up of Dollar Universe fails systematically.

The cluster resource disk is available.

Cause:

Cause type:
Configuration
Root Cause: During the installation DUAS was installed with root as admin user. User root is owner of all files. If the supposed DUAS admin user tries a startup, he will not be able to access mandatory files, and DUAS will not start.

Environment:

OS: All Unix
Related configuration item(s): But this kind of issue can happen on any DUAS 6 environment on a Linux/Unix Cluster

Resolution:

Connect as root to the DUAS Host as root, check that DUAS is stopped actually.

load the environment
. ./unienv.ksh
and run
./uxrights -m assign -a

This command will change the permissions on the Dollar Universe files by setting your user as owner.
This will fix the issue

Fix Status: No Fix

Additional Information:

Workaround :
N/A