VFS_SHADOW_COPY(8) VFS_SHADOW_COPY(8)
NAME
vfs_shadow_copy - Make a Samba share read only for a specified time period
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 correct for version 3.0.25 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 devel-oped. developed.
oped.
VFS_SHADOW_COPY(8)
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