Search for product "AIX", version "6.1", and fix type "Fix Packs". Latest Level: The final stable version is AIX 6.1 Technology Level 9 (TL9)
Then deploy to new LPARs over the network—no ISO required.
release. If the exact level you need isn't listed, download the closest base media (e.g., TL8 or TL9) and apply updates later.
Set "Commit software updates?" to if you want the option to roll back; set to Yes to make the changes permanent.
Once you have the ISO image, you can mount it directly to install updates or additional filesets.