Cloud backup upload all the files every time in new versions?

TrueNAS General
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1

Hello,

      after updating to the most recent Truenas versions (up to 25.10.7 - Goldeye) it seems that data protection -> cloud backup with PUSH/COPY option upload the entire content of the nas at each run, overwriting the cloud content for the files with the same name.
Older versions was working differently: only changed or new files were copied at each run! This is a big problem for me as it runs forever due to the several TB of data.

Has anyone noticed the same behaviour? Of course if I want a full match between cloud and the nas I can also run a SYNC task, but for PUSH/COPY I'd not expect everything is copied again at avery run.

        Thanks for your help, Mauro
2

PUSH/COPY redoing every file means the compare is failing, not that the task suddenly wants a full copy.

open the job log and look for Skipped vs actual transfer bytes. if bytes climb on every unchanged file, remote metadata (mtime/hash) stopped lining up after the update.

common after a TrueNAS bump: remote encryption on, or the bundled tool changed how it stores compare info. say which provider (b2, s3, onedrive, etc) and whether encryption is on. paste a few log lines for one file that already existed but got copied again.

3

Thanks a lot for your reply! I have tried to discover what’s really going on, also basing on your suggestion. Finally, I’ve discovered that one particular file, a very big one around 1.3TB that is the full backup of a PC, is always uploading till ~98/99% and then the upload is reset again to 0% with no apparent reason! This goes endlessly and the task never ends…

This was not happening for at least 1 year, with the same file and size. The file is normally updated weekly to the nas, but also if the file is not changed while it’s uploading the reset happens anyway.

See the log here. It seems that at the upload reset moment the total size to be uploaded increases by the exact size of that file (9.679 TiB - 8.528 TiB ~= 1.3TB), but this is not true, the file is not touched since days and its size is the same, so it seems a sort of bug or error calculating the total size to be uploaded.

2026/10/06 22:10:03 INFO :
Transferred: 8.519 TiB / 8.528 TiB, 100%, 8.180 MiB/s, ETA 21m
Checks: 1325013 / 1325013, 100%, Listed 2860258
Transferred: 297 / 298, 100%
Elapsed time: 5d22h10m2.0s
Transferring:

  • DESKTOP-…C2026-08-30T114351.vbk: 99% /1.151Ti, 15.388Mi/s, 11m10s

2026/10/06 22:15:03 INFO :
Transferred: 8.524 TiB / 8.528 TiB, 100%, 8.180 MiB/s, ETA 9m53s
Checks: 1325013 / 1325013, 100%, Listed 2860258
Transferred: 297 / 298, 100%
Elapsed time: 5d22h15m2.0s
Transferring:

  • DESKTOP-…C2026-08-30T114351.vbk: 99% /1.151Ti, 23.917Mi/s, 3m22s

2026/10/06 22:20:03 INFO :
Transferred: 8.531 TiB / 9.679 TiB, 88%, 8.180 MiB/s, ETA 1d16h54m
Checks: 1325013 / 1325013, 100%, Listed 2860258
Transferred: 297 / 298, 100%
Elapsed time: 5d22h20m2.0s
Transferring:

  • DESKTOP-…C2026-08-30T114351.vbk: 0% /1.151Ti, 20.926Mi/s, 15h59m24s

2026/10/06 22:25:03 INFO :
Transferred: 8.536 TiB / 9.679 TiB, 88%, 8.180 MiB/s, ETA 1d16h42m
Checks: 1325013 / 1325013, 100%, Listed 2860258
Transferred: 297 / 298, 100%
Elapsed time: 5d22h25m2.0s
Transferring:

  • DESKTOP-…C2026-08-30T114351.vbk: 0% /1.151Ti, 20.507Mi/s, 16h14m22s
4

Anyone has an idea about this?

I also tried to completely delete files and folder, re-create all files and folder from scratch, no way… the file is uploaded to cloud till 99% and then it resets to 0% and the upload restarts again in a never ending story…

Here is the latest log I captured, this is the transition between the file almost finished at 99% 1s left and 0% again, file trasnfer restart from the beginning! And there is no indication in the log of what’s really happening.

2026/10/10 14:12:02 INFO :
Transferred: 1.142 TiB / 1.142 TiB, 100%, 22.104 MiB/s, ETA 1s
Checks: 441792 / 441792, 100%, Listed 953607
Transferred: 47 / 48, 98%
Elapsed time: 16h40m1.0s
Transferring:

  • MVT5K2F_…C2026-10-09T183628.vbk: 99% /1.142Ti, 21.979Mi/s, 1s

2026/10/10 14:17:02 INFO :
Transferred: 1.149 TiB / 2.284 TiB, 50%, 23.617 MiB/s, ETA 14h9s
Checks: 441792 / 441792, 100%, Listed 953607
Transferred: 47 / 48, 98%
Elapsed time: 16h45m1.0s
Transferring:

  • MVT5K2F_…C2026-10-09T183628.vbk: 0% /1.142Ti, 23.644Mi/s, 13h59m13s

Thanks for your help, Mauro