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From: D <nospam@example.net>
Newsgroups: comp.os.linux.misc
Subject: Re: Time machine backups
Date: Thu, 9 Jan 2025 17:51:18 +0100
Organization: i2pn2 (i2pn.org)
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On Wed, 8 Jan 2025, Carlos E.R. wrote:

> On 2025-01-08 03:49, Lars Poulsen wrote:
>> On 2025-01-07, vallor <vallor@cultnix.org> wrote:
>>> Bought a 4TB external USB/NVME device for my workstation.
>>> Installed Samba and configured it to use the "fruit"
>>> module to offer up a Time Machine share for the
>>> Mac Studio. (Also using it with Timeshift on the
>>> workstation itself, but that part was easier.)
>>> 
>>> (Backups are good; automated versioned backups are better.)
>> 
>> I have setup "time machine" backups on two of my servers, using rsync to
>> a local external drive, but I have not figured out how to do it to a
>> Samba share. On the local external drive, using ext4 file system, hard
>> links make it very space efficient, but I don't think you can do that
>> with a Samba mounted remote drive. Any hints? Do you run the rsync on
>> the file server, so that you can do the hard links on the backup drive's
>> ext4 file system while the backup server sees its production client as
>> the remote Samba mount?
>> 
>> And is there a way to use a cheap remote "storage box" that is only
>> accessible as a Samba NAS as the versioned storage medium with
>> similarly good storage efficiency?
>
>
> You can not backup using any type of file copy, like rsync, a Linux 
> filesystem into samba, or a windows filesystem.
>
> The only way to do it is using archives like tar.

Apart from samba, I have used the rsync + hardlinks method for backup with 
much success between countries, for decades.