Change Paging Size in AIX

chps -s'4' hd6

4 = 4 LP
1 LP = 1PP
if PP=256MB
4 LP = 1024 MB

/etc/swapspaces

swapon -a

The lsps command, mkps command, rmps command, swap command, swapon
       command, swapoff command.

       The Paging space in Operating system and device management explains
       paging space and its allocation policies.

       The File systems in Operating system and device management provides
       information on working with files.

       For information on installing the Web-based System Manager, see Chapter
       2: Installation and System Requirements in AIX 5L Version 5.3 Web-based
       System Manager Administration Guide.

       The System management interface tool in Operating system and device
       management explains the structure, main menus, and tasks that are done
       with SMIT.

Paging File can be added online.