[Borgbackup] ACLs not preserved

[Thorsten Schöning]

Guten Tag ralph strebbing,
am Samstag, 26. Februar 2022 um 02:51 schrieben Sie:

> I wonder then, since this issue seems to be hard to fix given most of the
> ways borg handles remote hosts right now, is there any way rsync can
> potentially be leveraged? Or am I maybe misunderstanding the issue.

You should debug further, RSYNC isn't any different than BORG
instances with ssh-agent. In both cases two instances of some reading
app with full access to the filesystem are executed on the
to-be-backed-up client.

That is the difference with SSHFS, which is an additional layer with
additional limitations like unstable INODES, missing ACLs etc. Readers
using that layer don't have access to all data, compared to readers
natively running on the client. But that shouldn't be used in your
setup.

Where does the following backup source comes from, what are the mount
options exactly? Should be some EXT4 file system at filesrv1. You
should provide the mount options and some example output showing that
ACLs are really available.

> /storage/netfiles/testfolder

Your problem reads to me like there's some hiding layer between BORG
and the filesystem. While that might be SSHFS, it shouldn't be,
because SSH-AGENT doesn't use that.

What happens when you run your backups multiple times after another?
Check the output for modified files, as if all of those are modified
over and over again, that's another hint for some layer like SSHFS
with unstable INODES between backups.

https://borgbackup.readthedocs.io/en/stable/faq.html#why-is-backup-slow-for-me
https://borgbackup.readthedocs.io/en/stable/faq.html#it-always-chunks-all-my-files-even-unchanged-ones

Mit freundlichen Grüßen

Thorsten Schöning

-- 
AM-SoFT IT-Service - Bitstore Hameln GmbH
Mitglied der Bitstore Gruppe - Ihr Full-Service-Dienstleister für IT und TK

E-Mail: Thorsten.Schoening at AM-SoFT.de
Web:    http://www.AM-SoFT.de/

Tel:   05151-  9468- 0
Tel:   05151-  9468-55
Fax:   05151-  9468-88
Mobil:  0178-8 9468-04

AM-SoFT IT-Service - Bitstore Hameln GmbH, Brandenburger Str. 7c, 31789 Hameln
AG Hannover HRB 221853 - Geschäftsführer: Janine Galonska


Für Rückfragen stehe ich Ihnen jederzeit zur Verfügung. 

Mit freundlichen Grüßen, 

Thorsten Schöning


Telefon: +49 (0)515 94 68 - 0
Fax: 
E-Mail: TSchoening at am-soft.de

AM-Soft IT-Service - Bitstore Hameln GmbH
Brandenburger Straße 7c
31789 Hameln

Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen und ist ausschliesslich für den Adressaten bestimmt. Jeglicher Zugriff auf diese E-Mail durch andere Personen als den Adressaten ist untersagt. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Sollten Sie nicht der für diese E-Mail bestimmte Adressat sein, ist Ihnen jede Veröffentlichung, Vervielfältigung oder Weitergabe wie auch das Ergreifen oder Unterlassen von Massnahmen im Vertrauen auf erlangte Information untersagt. 

This e-mail may contain confidential and/or privileged information and is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. 

Hinweise zum Datenschutz: bitstore.group/datenschutz