Can't open a tibx file copy
Running TIB 2020, build 38600, locally installed on a updated Win10 box. (Oddly, the newest available on Acronis.com is 38530 but that is not the problem.) I've got 7 computers on this LAN, 5 running TIB 2021, this one 2020, and an old Win7 box running 2015. All seem to be working well, some on a daily, others on a weekly, schedule. No problem opening, using Windows file manager, any of the backup tibx files from this machine stored on the file server.
I copied one of the 2021 tibx files to an off-line backup disk. I could not open the copy, "error while opening the backup archive', corrupted or other problem. Being a 38GB file copied over a USB connection, I thought corruption, so copied again.
Same thing. Checked each file with a SHA256 hash, they are the same. Made a copy to a local drive thinking USB something is causing a problem. Same hash, and same error. Other files copy and open fine. Symptom: the error appears almost instantly, a successful open requires some seconds depending on file size.
What do I have to do to make a backup of a tibx file so that the backup is usable?


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See the following KB documents published by Acronis with regards to .tibx files.
KB 63518: Acronis True Image 2020: do not delete first tibx file
KB 63227: Acronis True Image: Do not delete .TIB or .TIBX files outside of Acronis True Image
KB 63498: Acronis True Image 2020-2021: new tibx backup format FAQ
KB 63425: Acronis True Image: Limitations of tibx backups
KB 63445: Acronis True Image 2020: how to view and manage backup versions in new backup format
KB 63444: Acronis True Image 2020 and 2021: tibx backups in local destinations
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IanL:
I believe you are right, the copy opened perfectly from another computer with ATIB 2021. Now to go back on that computer and see if the original errors out. At first I thought it could a bug in 2020 as we seen that the ATIB programs have difficultly opening backups from different ATIB versions than themselves. But this was an identical copy that opened in one place but not another.
As I have 6 registered versions (10 copies over 15 years!) I often run into version conflicts. Too bad I'll never buy another one.
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