NAME

       vfs_shadow_copy - Expose snapshots to Windows clients as shadow copies.

SYNOPSIS

       vfs objects = shadow_copy

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       The vfs_shadow_copy VFS module functionality that is similar to Microsoft Shadow Copy
       services. When setup properly, this module allows Microsoft Shadow Copy clients to browse
       "shadow copies" on Samba shares.

       This module is stackable.

CONFIGURATION

       vfs_shadow_copy relies on a filesystem snapshot implementation. Many common filesystems
       have native support for this.

       Filesystem snapshots must be mounted on specially named directories in order to be
       recognized by vfs_shadow_copy. The snapshot mount points must be immediate children of a
       the directory being shared.

       The snapshot naming convention is @GMT-YYYY.MM.DD-hh.mm.ss, where:

              •   YYYY is the 4 digit year

              •   MM is the 2 digit month

              •   DD is the 2 digit day

              •   hh is the 2 digit hour

              •   mm is the 2 digit minute

              •   ss is the 2 digit second.

       The vfs_shadow_copy snapshot naming convention can be produced with the following date(1)
       command:

                TZ=GMT date +@GMT-%Y.%m.%d-%H.%M.%S

EXAMPLES

       Add shadow copy support to user home directories:

                   [homes]
                vfs objects = shadow_copy

CAVEATS

       This is not a backup, archival, or version control solution.

       With Samba or Windows servers, vfs_shadow_copy is designed to be an end-user tool only. It
       does not replace or enhance your backup and archival solutions and should in no way be
       considered as such. Additionally, if you need version control, implement a version control
       system.

VERSION

       This man page is part of version 4.15.13-Ubuntu of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba
       is now developed by the Samba Team as an Open Source project similar to the way the Linux
       kernel is developed.