[Samba] Enable Shadow Copy service

[Ricardo Pardim Claus via samba]

Dear, I would like someone to indicate me a tutorial to configure the Shadow Copy service on Samba. All the sites I found the tutorials did not help, or is incomplete. I use a Centos 7 with Samba 4.4.5. I would like to work with Shadow Copy snapshot or file server. Thank you
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[Ricardo Pardim Claus via samba]

Dear,
I appreciate the initial contact.
I realized these attempts, but it still fails.
For testing purposes, I created 2 LVM, one for the share folder and another to store the snapshots / shadow copy.

My smb.conf looked like this:


[data]
comment = Folder data
path = /mnt/dados
read only = No
browseable = yes
inherit acls = Yes
inherit permissions = Yes
guest account = guest
guest ok=yes
#writeable = Yes
# recycle
vfs objects = recycle, shadow_copy2
recycle:facility = LOCAL1
recycle:priority = NOTICE
recycle:maxsize = 0
recycle:directory_mode = 0774
recycle:subdir_mode = 0774
recycle:keeptree = true
recycle:touch = true
recycle:versions = true
recycle:exclude = *.tmp, *.log, *.obj, ~*.*, *.bak, *.exe, *.bin
recycle:exclude_dir = tmp, temp, cache
create mask = 0774
directory mask = 0774
shadow:snapdir = /mnt/snapshot

shadow:basedir = /mnt/dados
shadow:sort = desc
shadow:localtime = yes
shadow:format = @GMT-%Y.%m.%d-%H.%M.%S



[snapshot]
comment = Shadow Copy Enabled Share
path = /mnt/snapshot
vfs objects = shadow_copy
writeable = yes
browseable = yes



Initial doubts are these:

- That's right I create 2 LVM to work with file server and shadow copy / snapshot?
- How is generated the shadow copy? I tried to adapt this script but it did not work:
https://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/VFS.html#id2651694


- Can I use any file system? I'm using XFS.

Thank you!




----- Mensagem original -----
De: Андрей Петров <>
Enviadas: Terça-feira, 23 de Agosto de 2016 20:31
Assunto: Re: [Samba] Enable Shadow Copy service

Hi Ricardo,
I use Cantose 7 with sernet-samba-4.2.14
Shadow copy works fine for me:

#cat /etc/samba/smb.conf
...
[Data]
path=/data/share/Shared folders company
read only = no
vfs objects = shadow_copy2
...
as mentioned in
https://www.samba.org/samba/docs/man/manpages/vfs_shadow_copy2.8.html
you may need this options in share section:

shadow:snapdir = /data/snapshots
shadow:basedir = /data/home

With my directory tree
# ls /data/.snapshots/
@GMT-2016.08.09-19.00.00
@GMT-2016.08.10-19.00.00
@GMT-2016.08.11-19.00.00

it works out of the box with defaults

The way you create snapshots depends on you. I've used LVM + smbsnap (
https://wiki.samba.org/index.php/Rotating_LVM_snapshots_for_shadow_copy)
but now i'm using "rsync time machine with hardlinks".

Things to keep in mind:
Selinux (if enabled) context and ACL for .snapshot folder should be
appropriate.

Good luck!

On 24.08.2016 01:19, Ricardo Pardim Claus via samba wrote:
> Dear, I would like someone to indicate me a tutorial to configure the Shadow Copy service on Samba. All the sites I found the tutorials did not help, or is incomplete. I use a Centos 7 with Samba 4.4.5. I would like to work with Shadow Copy snapshot or file server. Thank you


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C уважением,

Петров Андрей
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Email:
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