advice for testing fileserver

advice for testing fileserver

[Caleb O'Connell]

I'm building a test file server using samba 3.6 to see if BTRFS is a good 
fit.  I want to stress that this is a test setup for now.

I'm trying to get an idea of the sub-volume concept and how it relates to 
the LVM concept.  Trying to see what might be the best practice.

I was going to create one of two configs.
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##
option 1
sda1 -> /boot using ext4
sda2 is LV sysvg, this will include:
  lvroot -> / using ext4
  lvvar -> /var using ext4
  lvopt -> /opt using ext4
  lvhome -> /home using btrfs
  lvsrv -> /srv using btrfs

I could create sub-volumes in srv for each samba share.

##
option 2
sda1 -> /boot using ext4
sda2 is LV sysvg, this will include:
  lvroot -> / using ext4
  lvvar -> /var using ext4
  lvopt -> /opt using ext4
sda3 -> /home using btrfs
sda4 -> /srv using btrfs

both /home and /srv can create their own sub-volumes for each homedir and 
each share.
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Does BTRFS work fine within a LV?  Is there an advantage to keep BTRDS out 
or in a LV?  Does all this make no sense? and I really should just create 
one big BTRFS partition and only use sub-volumes?