Date: Sat, 24 Sep 2022 01:37:49 +0200 From: Ralf Mardorf <ralf-mardorf@riseup.net> To: questions@freebsd.org Subject: Re: data, metadata, backup, and archive integrity and correction Message-ID: <ed8431a943b8d3cd74e588c7ee9901c6c166eba8.camel@riseup.net> In-Reply-To: <7be8f47b-bfea-ef5a-7b59-2f94f8d310e2@holgerdanske.com> References: <b027f6af-bf83-2663-b0ef-2480e385b189@holgerdanske.com> <c15361a3f8328583bdab528c5a49bf475a1dfdfa.camel@riseup.net> <7be8f47b-bfea-ef5a-7b59-2f94f8d310e2@holgerdanske.com>
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On Fri, 2022-09-23 at 15:42 -0700, David Christensen wrote: > All versions of the photograph file opened correctly with a viewer.=C2=A0 > All photographs looked the same on the screen.=C2=A0 But, at least one fi= le > is corrupt.=C2=A0 Which file(s)?=C2=A0 I never figured it out.=C2=A0 I k= ept all > versions of the file.=C2=A0 (And, I have kept all camera media.) Hi David, I'm a digital photographer newbie. I started digital photography in 2020. For developing photos and more editing, graphic art, I'm using a Linux desktop machine, but most of the times an iPad Pro. I copy all my cam's SD data to my Linux desktop PC, my iPad Pro and to at least two USB HDDs (ext4 and hfs+ without journaling) in the first place. Before I format a SD again, I take a look at all copied photos using a viewer. The photo backup/archiving is completely "decoupled" from all other backup/archiving. Non-destructive editing of photos, done on different machines, in my experiences results in chaos. Way before verifying a probably corrupted backup, I already loose control. For example, it's already impossible to gain control over naming files of edited photos. Sharing edited photos among apps running on iPad OS already is a PITA, let alone sharing photos among operating systems. I've got tons of unneeded duplicates of some photos. Deleting a duplicated photo might render separately stored meta-data useless. Regards, Ralf
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