NFS

sudo apt install nfs-kernel-server
sudo nano /etc/exports
sudo exportfs -ra
showmount -e NFS_SERVER_ADDRESS

/etc/exports

# /etc/exports: the access control list for filesystems which may be exported
#               to NFS clients.  See exports(5).
#
# Example for NFSv2 and NFSv3:
# /srv/homes       hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check)
#
# Example for NFSv4:
# /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)
# /srv/nfs4/homes  gss/krb5i(rw,sync,no_subtree_check)

/var/nfs/sda 192.168.0.0/24(rw,sync,no_subtree_check,all_squash)
/var/nfs/sdb 192.168.0.0/24(rw,sync,no_subtree_check,all_squash)
/var/nfs/sdc 192.168.0.0/24(rw,sync,no_subtree_check,all_squash)
/var/nfs/sdd 192.168.0.0/24(rw,sync,no_subtree_check,all_squash)