AIX for Oracle DBA

A) Memory Consumption:

$ svmon -G
               size       inuse        free         pin     virtual
memory      5079040     5076409        2631      706856     2983249
pg space    7864320       12885

               work        pers        clnt       other
pin          540803           0        2758      163295
in use      2983249           0     2093160

PageSize   PoolSize      inuse       pgsp        pin    virtual
s   4 KB          -    4918761      12885     621096    2825601
m  64 KB          -       9853          0       5360       9853

In this example, 

Memory-virtual value is 2983249

Memory-size value is 5079040

Determine the actual memory consumption: Memory-virtual/Memory-size

2983249/5079040
.587  = 58.7%.
(5079040 blocks of 4 KB = 19840 MB). The free memory is thus: (100% - 58%) * 19840 MB = 8332 MB. 
B) topas: Top Resource Usage Monitor
Legacy Unix gave us the top command, a continuously updating list of the top CPU users on the system. AIX's topas is top on steroids.
$topas
c) 32-bit kernel or 64-bit kernel:

$bootinfo -K
D)Version, release, and maintenance level of AIX is running on my system?


$oslevel -r


$lslpp -h bos.rte


Refernces: http://www.ibm.com/developerworks/aix/library/au-dutta_cmds.html
           http://www.aixhealthcheck.com/blog.php?pagenum=1&topic=1