I am a kind of confused by file systems on Data Domain.

'nfs show clients' is to list "paths". Aren't they file systems as well ? If they are not FS, then how can they be exported to clients?

OR, DD has only one file system, and all "paths" are creaed on the same file system? In regular Unix file system, nfs exports "file system" to clients,

based on 'df' command below, df is supposed to show all file systems, so, are both /data and /ddvar file systems?

# df

Active Tier:

Resource           Size GiB    Used GiB   Avail GiB   Use%   Cleanable GiB

----------------   --------   ---------   ---------   ----   -------------

/data: pre-comp           -   2017644.0           -      -               -

/data: post-comp   218428.5    168477.0     49951.5    77%          7891.5

/ddvar               132.9         8.8       117.3     7%               -

----------------   --------   ---------   ---------   ----   -------------

As you can tell, I am kind of confused...

Appreciate your help.