title: Directory permission in AIX is changing to nobody
body: <p>I am using an AIX system. The directory I am using is on GPFS(Type mmfs in mount command) [Not NFS]. What I am seeing is time to time the ownership is changing to nobody. I was wondering if someone can help me understand what activity can change the directory ownership to nobody. I am not expecting the root user to run chown specifically. What else could trigger this change of ownership.
  Following is some of the directory and file system listing -</p>
  
  <pre><code>$ ls -ld /x/y/z
  drwxr-xr-x  165 nobody   app_dev       65536 Jan 31 19:41 /x/y/z
  $
  
  
  $ df -g /x/y/z
  Filesystem    GB blocks      Free %Used    Iused %Iused Mounted on
  /dev/gpfsfl   654865.87  46975.80   93% 35495352    97% /x/y
  $
  
  
  $ ls -ld /x/y
  drwxrwxr-x  172 app      app_dev       65536 Jan 14 15:32 /x/y
  $
  </code></pre>