Windows Previous versions with BTRFS snapshots not working

Just out of curiosity, should the Windows Previous versions also work for the homes directory? Cause it doesn't, no matter what setting for shadow:localtime.

Hello, I need Your help.

I just started using btrfs on new disk connected to OMV and I'm testing a lot of things.

Now wanted to start using snapshots and previous version but it still doesn't work.

I'm using the UI to make snapshots, where name of the snapshot folder is made by automatic and looks like:

WD18_20230922T221250

What should I paste into SMB config to make it work?

I tried with:

vfs objects = shadow_copy2
shadow:format = @WD18_%Y%m%dT%H%M%S
shadow:sort = desc
shadow:snapdir = .snapshots
shadow:localtime = no

But it doesn't work

Zitat von votdev

These settings are added automatically for shared folders that are located on Btrfs.

Thanks man! It seems I just had to remove all my options, as it doubled it.

Is there any info about it that I missed up?

PS: Where is the config file of SMB so I can in case of needed check it manually?

I recently checked previous versions tab in windows explorer and it is empty.

I tried to make a new test folder (on BTRFS), setup snapshots, checked smb.conf... everything seems OK, but I don't see any previous versions of the files. I can see the snaphots that are made periodicaly.

Any tips what should I check/change?

Thanks.

Here are some more infos and screenshots for anyone willing to look at this...

etc/samba/smb.conf

# This file is auto-generated by openmediavault (https://www.openmediavault.org)

# WARNING: Do not edit this file, your changes will get lost.

#======================= Global Settings =======================

[global]

workgroup = WORKGROUP

server string = %h server

dns proxy = no

log level = 0

log file = /var/log/samba/log.%m

max log size = 1000

logging = syslog

panic action = /usr/share/samba/panic-action %d

passdb backend = tdbsam

obey pam restrictions = no

unix password sync = no

passwd program = /usr/bin/passwd %u

passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .

pam password change = yes

socket options = TCP_NODELAY IPTOS_LOWDELAY

guest account = nobody

load printers = no

disable spoolss = yes

printing = bsd

printcap name = /dev/null

unix extensions = yes

wide links = no

create mask = 0777

directory mask = 0777

use sendfile = yes

aio read size = 1

aio write size = 1

time server = no

wins support = no

disable netbios = yes

multicast dns register = no

server min protocol = SMB2_02

# Special configuration for Apple's Time Machine

fruit:aapl = yes

fruit:copyfile = yes

fruit:nfs_aces = no

#======================= Share Definitions =======================

......

......

[test]

path = /srv/dev-disk-by-label-BTRFS14TB/test/

guest ok = no

guest only = no

read only = no

browseable = yes

inherit acls = no

inherit permissions = no

ea support = no

store dos attributes = no

recycle:repository = .recycle/%U

recycle:keeptree = yes

recycle:versions = yes

recycle:touch = yes

recycle:touch_mtime = no

recycle:directory_mode = 0777

recycle:subdir_mode = 0700

recycle:exclude =

recycle:exclude_dir =

recycle:maxsize = 0

shadow:mountpoint = /srv/dev-disk-by-label-BTRFS14TB/

shadow:snapdir = /srv/dev-disk-by-label-BTRFS14TB/.snapshots/

shadow:basedir = /srv/dev-disk-by-label-BTRFS14TB/test/

shadow:sort = desc

shadow:format = _%Y%m%dT%H%M%S

shadow:delimiter = _

shadow:snapprefix = ^test\(@hourly\)\{0,1\}\(@daily\)\{0,1\}\(@weekly\)\{0,1\}\(@monthly\)\{0,1\}\(@yearly\)\{0,1\}$

shadow:localtime = no

dfree command = /usr/sbin/omv-btrfs-dfree

dfree cache time = 30

vfs objects = recycle btrfs shadow_copy2

printable = no

create mask = 0664

force create mode = 0664

directory mask = 0775

force directory mode = 0775

hide special files = yes

follow symlinks = yes

hide dot files = yes

valid users =

invalid users =

read list =

write list =

Are there some other settings in windows ?

Thanks.

Hi folks,

We have also been bumping into this problem for the last two days.

Snapshots were created, but displayed in Windows with the wrong time with shadow:localtime=no and are not shown with shadow:localtime=yes

The problem here was that Windows expects UTC for Snapshots and adds its own time zone.

If we set shadow:localtime=yes the samba_shadow2 module now also delivers Localtime so it couldnt be found by the client.

The solution for us was to create the snapshots with UTC-Timestamp(@hourly_$(TZ=GMT date +%Y%m%dT%H%M%S) and then send them to the Windows machines with shadow:localtime=no. Clients now add their time zone to the UTC-Time.

Now The OMV is running on the correct Timezone and the clients show the Snapshots with the right Time and they can be opened..

Just the Snapshots are stored with UTC Timestamp.

Perhaps this will help some of you.