Re: rsync --delete vs rsync --delete-after

From	Michael Kjörling <2695bd53d63c@ewoof.net>
Newsgroups	linux.debian.user
Subject	Re: rsync --delete vs rsync --delete-after
Date	2024-01-17 21:20 +0100
Message-ID	<HXkyd-3LLz-1@gated-at.bofh.it> (permalink)
References	<HXgXD-3Jzs-5@gated-at.bofh.it> <HXiPL-3KGQ-5@gated-at.bofh.it> <HXkeR-3LpH-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 17 Jan 2024 14:52 -0500, from hunguponcontent@gmail.com (Default User):
> I am writing as someone who has lost data more than once over time, for
> various reasons.  The loss has ranged from slightly annoying, to soul-
> rending catastrophe. It is NEVER appreciated. 

I think this gets closer to the root of what you're trying to achieve:
it sounds to me as though no matter what happens, you want to have a
restorable backup which you can trust to (reasonably well) match the
state of the source at the time when that backup was taken. That is a
commendable goal.

Twiddling with options to rsync won't offer you that in light of
several of the scenarios you listed, though; not least a lightning
strike. A lightning strike will blow out the drive just as much no
matter what options you're using to invoke rsync.

What you need is really rather multiple copies.

I suggest to get a second drive to use for backup purposes along with
the one you currently have. Only ever connect one of them at the same
time to data or power anywhere. Ideally, always keep at least one of
them in a separate location, powered off and disconnected.

That way, if you mess up one, or if one of them fails (for any
reason), or whatever else might happen, you have the other. It might
not be quite as up to date, but it will be in a known-good state.

For less drastic failures, really, look at rsnapshot. It's a wrapper
around rsync which makes maintaining multiple revisions of a backup
much easier. (It essentially passes to rsync with --link-dest, and
manages the respective root directories.)

-- 
Michael Kjörling                     🔗 https://michael.kjorling.se
“Remember when, on the Internet, nobody cared that you were a dog?”

Thread

rsync --delete vs rsync --delete-after Default User <hunguponcontent@gmail.com> - 2024-01-17 17:30 +0100
  Re: rsync --delete vs rsync --delete-after David Christensen <dpchrist@holgerdanske.com> - 2024-01-17 18:30 +0100
    Re: rsync --delete vs rsync --delete-after Keith Bainbridgge <keithrbaugroups@gmail.com> - 2024-01-18 00:10 +0100
    Re: rsync --delete vs rsync --delete-after Default User <hunguponcontent@gmail.com> - 2024-01-18 02:30 +0100
      Re: rsync --delete vs rsync --delete-after David Christensen <dpchrist@holgerdanske.com> - 2024-01-18 08:40 +0100
      Re: rsync --delete vs rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-18 12:10 +0100
        Re: rsync --delete vs rsync --delete-after <tomas@tuxteam.de> - 2024-01-18 12:20 +0100
          Re: rsync --delete vs rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-18 12:50 +0100
      Re: rsync --delete vs rsync --delete-after Michel Verdier <mv524@free.fr> - 2024-01-18 14:00 +0100
  Re: rsync --delete vs rsync --delete-after Kushal Kumaran <kushal@locationd.net> - 2024-01-17 19:30 +0100
    Re: rsync --delete vs rsync --delete-after Default User <hunguponcontent@gmail.com> - 2024-01-17 21:00 +0100
      Re: rsync --delete vs rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-17 21:20 +0100
      Re: rsync --delete vs rsync --delete-after Andy Smith <andy@strugglers.net> - 2024-01-17 22:00 +0100
      Re: rsync --delete vs rsync --delete-after Michel Verdier <mv524@free.fr> - 2024-01-18 02:40 +0100
      Re: rsync --delete vs rsync --delete-after hw <hw@adminart.net> - 2024-01-18 12:20 +0100
        Re: rsync --delete vs rsync --delete-after Ralph Aichinger <ra@h5.or.at> - 2024-01-18 13:50 +0100
          Re: rsync --delete vs rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-18 14:10 +0100
            Re: rsync --delete vs rsync --delete-after Ralph Aichinger <ra@h5.or.at> - 2024-01-18 15:30 +0100
            Re: rsync --delete vs rsync --delete-after hw <hw@adminart.net> - 2024-01-26 16:40 +0100
              Re: rsync --delete vs rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-26 17:30 +0100
                Re: rsync --delete vs rsync --delete-after hw <hw@adminart.net> - 2024-01-28 18:00 +0100
          Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Andy Smith <andy@strugglers.net> - 2024-01-26 16:20 +0100
            Re: Home UPS recommendations (Was Re: rsync --delete vs rsync --delete-after) fxkl47BF@protonmail.com - 2024-01-26 16:30 +0100
            Re: Home UPS recommendations Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-26 16:40 +0100
              Re: Home UPS recommendations Tixy <tixy@yxit.co.uk> - 2024-01-26 17:20 +0100
              Re: Home UPS recommendations "James H. H. Lampert" <jamesl@touchtonecorp.com> - 2024-01-26 17:20 +0100
            Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Roger Price <debian@rogerprice.org> - 2024-01-26 19:10 +0100
              Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) David Wright <deblis@lionunicorn.co.uk> - 2024-01-26 20:50 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Roger Price <debian@rogerprice.org> - 2024-01-27 11:00 +0100
            Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-01-26 20:10 +0100
              Re: Home UPS recommendations ghe2001 <ghe2001@protonmail.com> - 2024-01-26 20:30 +0100
                Re: Home UPS recommendations debian-user@howorth.org.uk - 2024-01-26 21:50 +0100
            Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) hw <hw@adminart.net> - 2024-01-28 19:00 +0100
              Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Andy Smith <andy@strugglers.net> - 2024-01-28 20:00 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs  rsync--delete-after) gene heskett <gheskett@shentel.net> - 2024-01-29 07:00 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Andy Smith <andy@strugglers.net> - 2024-02-08 16:30 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Charles Curley <charlescurley@charlescurley.com> - 2024-02-08 17:30 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Curt <curty@free.fr> - 2024-02-08 17:40 +0100
                Re: Home UPS recommendations Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-02-08 18:00 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) hw <hw@adminart.net> - 2024-02-09 12:10 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Dan Ritter <dsr@randomstring.org> - 2024-02-09 13:10 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) hw <hw@adminart.net> - 2024-02-09 22:40 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) Dan Ritter <dsr@randomstring.org> - 2024-02-09 23:30 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync --delete-after) "Roy J. Tellason, Sr." <roy@rtellason.com> - 2024-02-09 17:40 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync --delete-after) Stefan Monnier <monnier@iro.umontreal.ca> - 2024-02-09 18:20 +0100
                Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-02-10 01:10 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync  --delete-after) hw <hw@adminart.net> - 2024-02-09 22:50 +0100
                Re: Home UPS recommendations (Was Re: rsync --delete vs rsync --delete-after) "Roy J. Tellason, Sr." <roy@rtellason.com> - 2024-02-11 19:10 +0100
                Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-02-09 18:20 +0100
                Re: Home UPS recommendations debian-user@howorth.org.uk - 2024-02-09 21:40 +0100
                Re: Home UPS recommendations hw <hw@adminart.net> - 2024-02-09 22:50 +0100
                Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-02-10 01:00 +0100
                Re: Home UPS recommendations hw <hw@adminart.net> - 2024-02-10 03:20 +0100
                Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-02-10 04:30 +0100
                Re: Home UPS recommendations hw <hw@adminart.net> - 2024-02-10 11:10 +0100
                Re: Home UPS recommendations Felix Miata <mrmazda@earthlink.net> - 2024-02-10 15:00 +0100
                Re: Home UPS recommendations hw <hw@adminart.net> - 2024-02-10 16:50 +0100
                Re: Home UPS recommendations Joe <joe@jretrading.com> - 2024-02-10 19:50 +0100
                Re: Home UPS recommendations gene heskett <gheskett@shentel.net> - 2024-02-10 22:50 +0100
                Re: Home UPS recommendations hw <hw@adminart.net> - 2024-02-11 02:00 +0100
          Re: rsync --delete vs rsync --delete-after hw <hw@adminart.net> - 2024-01-26 16:20 +0100
            Re: Data and hardware protection measures; was: rsync --delete vs  rsync --delete-after Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-26 17:00 +0100
              Re: Data and hardware protection measures; was: rsync --delete vs  rsync --delete-after hw <hw@adminart.net> - 2024-01-28 19:30 +0100
                Re: Data and hardware protection measures Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-01-28 20:30 +0100
                Re: Data and hardware protection measures Felix Miata <mrmazda@earthlink.net> - 2024-01-28 21:50 +0100
            Re: rsync --delete vs rsync --delete-after Ralph Aichinger <ra@h5.or.at> - 2024-01-27 14:10 +0100
  Re: rsync --delete vs rsync --delete-after Stefan Monnier <monnier@iro.umontreal.ca> - 2024-01-18 05:20 +0100
    Re: rsync --delete vs rsync --delete-after Andy Smith <andy@strugglers.net> - 2024-01-18 15:40 +0100
      Re: rsync --delete vs rsync --delete-after Stefan Monnier <monnier@iro.umontreal.ca> - 2024-01-18 16:10 +0100
      Re: rsync --delete vs rsync --delete-after Michel Verdier <mv524@free.fr> - 2024-01-18 22:10 +0100
        Re: rsync --delete vs rsync --delete-after Andy Smith <andy@strugglers.net> - 2024-01-18 22:50 +0100
          Re: rsync --delete vs rsync --delete-after Default User <hunguponcontent@gmail.com> - 2024-01-19 03:40 +0100
          Re: rsync --delete vs rsync --delete-after Michel Verdier <mv524@free.fr> - 2024-01-19 08:10 +0100

csiph-web