Hi,
You should only put seafile-data/commits, seafile-data/fs and seafile-data/blocks and seafile-data/tmpfiles on NFS.
They should be on one device. The simplest way is to use symlinks for these 4 directories on each server running Seafile.
It looks like:
server 1:
seafile-data/commits --> /nfs/commits
seafile-data/fs --> /nfs/fs
seafile-data/blocks --> /nfs/blocks
seafile-data/tmpfiles --> /nfs/tmpfiles
server 2 is the same.
All other things in the seafile server directory should be server-specifice and should not be shared.
Hope this help. I'll add this info into the doc.