There is a way to become root from padmin, but its use is not encouraged by IBM. They may even take it away on future versions, may not even be an AIX box anymore (labspeak)...
from eserver Hardware info center:
click on "Partitioning the Server"
then on "Using the Virtual I/O Server"
then on "Virtual I/O Server command descriptions"
then on "chdate" (all the man pages are there - you can also download and print PDF books)
chdate Command
Purpose
Displays or changes the date, time or time zone.
Syntax
chdate [ mmddHHMM [YYyy | yy] ] [-timezone TZ]
chdate [-year YYyy] [-month mm] [-day dd] [-hour HH] [-minute MM] [-timezone TZ]
Description
Displays or changes the system date, time, or time zone. Changes made to the time zone will not take effect until the user logs out. For the time zone to take effect for the entire system, the system must be rebooted. All flags are optional, and the current system time information will be used if a flag was unspecified.
If no flags or arguments are specified, the chdate command displays the current date and time.
The mmddHHMM [YYyy | yy] parameters correspond to month, day, hour, minute, and optional 4 or 2 digit year.
Note:
The user must have padmin authority to change the date and time.
...
Note: on our VIOS (test setup), the chdate command is missing - I will update/reinstall VIOS probably next week, still at base level.
HTH - p5wizard