How do I shrink the default paging space on hd6?

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1) create a paging space to use temporarily
  mkps -s 16 -a rootvg     (PP=256MB)

2) change default paging space hd6 so it is not used at next reboot
  chps -a n hd6

3) Edit /sbin/rc.boot and change swapon /dev/hd6
  swapon /dev/paging00
 
3a)The default system dump device is /dev/hd6, it has to
  be changed to the temporary swap device before you remove the old
  swap device.

  sysdumpdev -p /dev/paging00

4) Update information in boot logical volume
  bosboot -a -d hdisk0

5) shutdown and reboot

6) remove current hd6 and create a new one of smaller size

  sysdumpdev -p /dev/paging00
   rmps hd6
  mklv -y hd6 -t paging rootvg 

7) Re-edit /sbin/rc.boot to swap to /dev/hd6
  swapon /dev/hd6

8) Change the dump device back to hd6:

  sysdumpdev -p /dev/hd6

9) Update information in boot logical volume
  bosboot -a -d hdisk0

10) change current paging device (paging00) so it is inactive at next boot
  chps -a n paging00

11) shutdown, reboot, remove paging00 using the command:
   rmps paging00

You can check your paging space with "lsps -a"