Changing PK_Users Setting on existing RAID with media

[team_steeze]

I have a RAID 5 on my Core.  It was initially set up under 7.10.  Since the upgrade to 8.10, the PK_Users has been changed to Public and the Filesystem is being reported as cifs. 

I would like to change the PK_Users setting to "Use LMCE's Directory Structure" but I wanted to know if this is going to affect my existing media on that RAID. 

As stated, it was originally set up under 7.10 and as such, it is configured with the normal public|user/data/etc... LMCE directory structure.  The array is currently symlink'ed from /home/public/data/other/Software Raid [35].

Also, why is LMCE seeing this drive as having a filesystem of cifs?  Is this going to negatively affect any part of the system?  I haven't noticed anything odd that might be attributed to this...  A "df -T" shows that the filesystem is ext3.

Any help/advice/comments is/are greatly appreciated and thanks in advance!

-team_steeze