I didn't mount a nfs volume

hello every one.  I have been using fas 3020 and aix 5,3 sytem . Yesterday I need to nfs volume to use a aix system.
first I edited the /etc/exports file and entered commad exportfs -a. The command was succesfully applied. when I entered exportfs,
I saw the line that edited  /etc/exports. after that I treid to mount a volume that have exported on /etc/exports.
The mount was success but It couldn't write a file and directory When I write a file or direcroy, The messages showd me "Permission denied"
I examined all file related nfs setting  "/etc/exports, qtreee". All setting is ok  but the directory that mount pointer is changed owner from root:sys to
weblogic:weblogic  The aix 5.3 system had  weblogic account
I have found a this soultion on netapp community site continue. but I don't find a soulution.
Can anybody help this problem?

* exported volume is   /vol/vol1

* mounter pointer on aix server is /netapp

* the server ip is

nas1*> exportfs
/vol/source     -sec=sys,rw,nosuid
/vol/vol0/home  -sec=sys,rw,nosuid
/vol/vol0       -sec=sys,rw,anon=0,nosuid
/vol/vol1       -sec=sys,rw,root=
/vol/luntest    -sec=sys,rw,nosuid

nas1*> qtree
qtree: This command is deprecated; using qtree status.
Volume   Tree     Style Oplocks  Status  
-------- -------- ----- -------- ---------
vol0              unix  enabled  normal  
vol1              unix  enabled  normal    
luntest           mixed enabled  normal  
luntest  test     mixed enabled  normal  
source            unix  enabled  normal

nfs mount pointer  on aix

before the mount       drwxr-xr-x   2 root     sys          512 Nov 26 12:00 netapp

after   the mount        drwxrwxrwx  2   weblogic  weblogic   512 Nov  2010 netapp

Re: I didn't mount a nfs volume

Which one of these file systems are you trying to write to ?

Output of 'mount' command on aix system would be useful.

Which user are you trying to mount as from aix ?

Open export on /vol/vol0 is scary. Have you set admin host on this system ?

'mixed' security style ( luntest ? ) is something I usualy avoid as well...

I hope this response has been helpful to you.

At your service,

Eugene E. Kashpureff
Fastlane NetApp Instructor and Independent Consultant

(P.S. I appreciate points for helpful or correct answers.)