Hi,
  We using ADSM and RMAN to backup our databases.  I've run across a tuning 
recommendation dependent on max_io_size.  AIX does not appear to have this 
parameter, though it has been suggested that maxpgahead may provide similar 
information.  Does anyone have information on correlation of these two 
parameters?  Any insights from people who've been down this path would be 
appreciated.

Thanks,
Russ Brooks
rbbdsb AT earthlink DOT net