Opened my eyes....
This is where the installation stops:
Filesets processed: 551 of 571
System Installation Time: 17 minutes Tasks Complete: 90%
installp: APPLYING software for:
DirectorPlatformAgent 6.1.2.0
. . . . . << Copyright notice for DirectorPlatformAgent >> . . . . . . .
Licensed Materials - Property of IBM
5765G0300
Copyright International Business Machines Corp. 2009.
All rights reserved.
US Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corp.
. . . . . << End of copyright notice for DirectorPlatformAgent >>. . . .
Just an idea: AIX tends to not getting 10/100MBit network cards in the correct mode when in Autosense mode. You might want to check if the switchport is configured to be at 100-Full-Duplex fixed.
I saw the phenomenon you describe (installations being so painfully slow the seem to be halted) in an environment where the switches where configured for Autosense and setting them to 100/Full did correct the problem.