Is it possible to make FreeFileSync create duplicate files?

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Posts: 8
Joined: 1 Jun 2024

Miss_M

Hi :-)

I wonder if it is possible to make FreeFileSync create duplicates?

I just got a photo ruin by bit rot and FreeFileSync copied over the good photo on my backup drive with the bad file.

So i wonder if it is possible to set FreeFileSync to create a duplicate if the files has different sizes and dates?
In windows it create a filename(1).end and in linux its stop copying and asks for what to do. Sadly linucx can not do as windows and just do same action on all files and create a duplicate.. But that is another topic for another forum.

But my question is if it is possible to change something in FreeFileSync so it always create a copy/duplicate if the source file has different size or date?
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Posts: 4056
Joined: 11 Jun 2019

xCSxXenon

You want versioning
https://freefilesync.org/manual.php?topic=versioning

You should also consider implementing a proper backup solution. 3-2-1 strategy isn't perfect if we nitpick, but it is incredibly better than the average person has or needs.
Posts: 8
Joined: 1 Jun 2024

Miss_M

You want versioning
https://freefilesync.org/manual.php?topic=versioning

You should also consider implementing a proper backup solution. 3-2-1 strategy isn't perfect if we nitpick, but it is incredibly better than the average person has or needs. xCSxXenon, 02 Jun 2024, 15:04
Thanks for the link, i will look in to it and do a lab test to only modify size but not timestamp on the file to see the versioning works. :-)

I have a three step backup... first to my server from my computers, then i backup the server to external disks and those also get backed up offsite.

I did fortunately saw it after the first backup, so i could get the picture back from server backup disks.
But if i hadn't seen it, it had become a domino effect where all disks had been effected.
So from now i will not use FreeFileSync from the server to the external disks until i can see FreeFileSync can create duplicates if the file size has changed but not time.. as bit rot often changes the filesize even the date are unchanged.
Posts: 1037
Joined: 8 May 2006

therube

as bit rot often changes the filesize even the date are unchanged
Not that I know, particularly, but I'd think that, odd.
Posts: 8
Joined: 1 Jun 2024

Miss_M

as bit rot often changes the filesize even the date are unchanged
Not that I know, particularly, but I'd think that, odd. therube, 03 Jun 2024, 16:22
I will look in to it when i get a bit more time. :-)