Confusing with maxperm in vmo

[imchinese]

Hi, I'm a little confuse after read some redbooks...
could you help me? thx.

running aix on 5.3L

runing oracle 10g, AIO active, power path.

I set maxperm=10% (minperm=5%), and lru_file_repage=1

question:
1. oracle running on storage powerpath, does it mean running on raw device, so it is not management in vmo?

2. Memory classfies persistent or working, right?
maxperm=10, when num% > maxperm, then page persistent only. does it mean that the left 90% memory will be use by oracle(or applications)?

example:
#vmstat 1
System configuration: lcpu=16 mem=17920MB
avm fre
3574056 880270

avm=3574056 * 4 / (17920 * 1024)=78%.

78% is the working memory, right?

is it right to count oracle's like this?

#ps aux
USER PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 33080 3.1 0.0 384 320 - A Jul 27 370077:43 wait

#ps aux |grep oracle |wc -l
9601

so.. 9601 * 320 = 3G.
13G avm, but oracle only use 3G, the left 10GB is for?

If I set lru_file_repage=0, do I have to reset maxperm? because ibm red book said, it will page persistent or working while num > maxperm or num < min.