QFS with NBU

Hello,

We have BSCS application from LHS installed on QFS on Solaris 10.

We tried to backup the application files with NBU, but it was incoherent after the restore.

I have two questions:

-is NBU compatible with QFS (not SAM-QFS) on Solaris?
-How could we backup flatfiles of BCS application from LHS with NBU ONLINE (online is important)?

Thanks