KB450420 – Setting Up Shadow Copy on Ubuntu

Last modified: April 27, 2021
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KB450420 – Setting Up Shadow Copy on Ubuntu


This guide will walk you through the steps to enable shadow copy on an SMB share running on ubuntu 20.04


  • Ubuntu Server running Houston with znapzend


  • Configure auto snapshot with znapzend, follow the guide below:

KB450410 – Automated ZFS Snapshots and Replication

  • Edit the smb.conf file adding the following under global, this must match what you setup in the previous step:

root@ubuntu-45d:~# vim /etc/samba/smb.conf

shadow: snapdir = .zfs/snapshot

shadow: sort = desc

shadow: format = %Y-%m-%d-%H%M%S
  • Add “vfs objects = shadow-copy2” to your smb configuration for your share in the Houston and restart Samba



  • connect to your share and try to view the snapshots under “Previous Versions” under the properties


  • Verify there are snapshots being made.
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