How to use ZFS + zfs-auto-snapshot package + Samba to support Windows Shadow Copy on Ubuntu 18.04

ZFS and Samba support Windows Shadow Copy.

1. Create a ZFS Mount Directory(Point)

Mount Point: /mnt/shared

How to create a ZFS Mount Directory(Point)? The detail is as the below,
Use ZFS file system on Ubuntu 18.04

2. Auto-Create ZFS Snapshot

The detail is as below,
ZFS Snapshot Auto-Create and Rotate for Ubuntu 18.04

3. Install samba-vfs-modules package

$ sudo bash
# apt install -y samba-vfs-modules

4. Edit smb.conf

# vim /etc/samba/smb.conf
==============================================================
[shared_folder]
        path = /mnt/shared
        browseable = yes
        writeable = yes
        read only = no
        create mode = 0660
        directory mode = 0770
        nt acl support = yes
        vfs objects = shadow_copy2
        shadow:snapdir = .zfs/snapshot
        shadow:sort = desc
        shadow:format = zfs-auto-snap_frequent-%Y-%m-%d-%H%M
==============================================================

5. Restart Samba Service

# systemctl restart smbd.service

6. Check the feature of Windows Shadow Copy on Samba.

Use Windows to Connect Samba, and you can check the “Previous Versions” of your share on Windows.

Reference:

• https://github.com/zfsonlinux/zfs-auto-snapshot/wiki/Samba