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Hi Fabbe, Welcome to the forum! Do I understand correctly that you have MS Windows on your server? Is it running 'server duty', or is it a computer for playing and learning? You mean HDD and SSD, don't you? I _think_ Proxmox has more benefit of an SSD. If you want to have access to both...

Lacking a TrueNAS target, I can't comment on the differences or relative advantages. An important advantage in my view is GPLv3 for PBS. Another important benefit for me is that PBS runs on top of Debian. TrueNAS allow you to deduplicate your backups via ZFS, does it not? Does that work for...

OK, I got cause of the strange behaviour: the datastore was not mounted when creating the datastore and not when starting the backup :p While intending to keep an eye on `dstat` and dm-cache usage, I mounted the store when I didn't see any IO, not realizing that PBS needs the same mountpoint...

Hey, that's peculiar.. I went ahead, added the datastore via PVE and created a backup. The backup is still running, but now the size of the datastore is displayed correctly on the dashboard: After completing the backup, the 'used' column still reads <30 KB. Task output on the PVE side...

Hi all, TL;DR: I created a thin volume and a mount point, but forgot to mount it before creating a datastore. The result was not what I expected. Not finding LVM thin explicitly in the PBS docs, I asked whether a datastore on thinly provisioned LVM would work. Conclusion: yes it does, just...

Sorry for the long silence. Apart from the run time for the tasks, life happened (and besides, I was really looking forward to the new PVE and PBS versions, and gave upgrading priority over politeness, and postponed posting until (easily and successfully, wohoo) finishing the upgrades). "All is...

Hi all, One more success story to add to the long list; 3x PVE on various hardware and a PBS. Thanks a lot for the great suite and the easy upgrade path!

There were eight chunks marked as corrupt in the first snapshot, which caused all subsequent snapshots to fail verification. The tape restore (of the first snapshot) did not restore any chunks, as it did not find any deficiencies in the snapshot. Re-verification of the first snapshot...

Hi Dominic, Thank you for your explanation and for replying to my question so quickly after I didn't have an update for a week! Do I understand correctly that a snapshot archive is a bundling of (a subset of) chunks from the chunk archive? In that case it is in line with my expectation /...

Hi Dominic, Sorry for not getting back any sooner. Backups are important, but sometimes life has no attention for that and throws urgent matters in the way ;-) I had to read that twice. Do I understand correctly that you mean this case: upon starting restore, a check is (now not) made, which...

Hi Chris & forum, Thanks for your explanation! Sorry for not getting back any sooner. I was writing a reply while checking and comparing logs when my graphics card crashed, losing my draft and 'research'. I'll try to edit this post tonight with some useful reply! <edit 10 days later> Sorry, I...

Hi dcsapak, Thanks again for helping me out! Yes, I did. The existing snapshot does not pass validation anymore, I hoped that by restoring from tape I would overwrite the broken chunk. ("all four snapshots fail verification", my other thread.) Do I understand correctly that tape restore will...

TL;WR: This must have been a one-off run-together of circumstances 4 snapshots of a backup failed re-verification 8 corrupt chunks in snapshot 1 running 5th snapshot backup while verifying 1-4 5th snapshot also fails verification 3 different chunks restore snapshot 1 from tape (2...

Hi all, TL;WR: I had a snapshot that failed verification Restore from tape did not correct any chunks On re-verification it turned out that the verification had incorrectly flagged a number of chunks as failed Lessons learned: use server grade hardware or exercise patience (ie, don't run...

Hi dcsapak, Thank you for your quick reply! I think it asnwered all my questions. Would you mind reading my rehash of your explanation, to see whether I understood correctly? Latest only Ok, so as long as I play according to the rules and if not playing with retention or manual deletion of...

Hi all, I'm on PBS 2.4.x. There is an external tape drive connected to the system, but it is not running 24/7 as I need change the tapes manually anyway. The result is that tape backups occur less frequently than planned in the job. So there is a bit of a backlog of un-taped backup snapshots...

Great! Glad you managed to solve it :-)

Hi Stefan, Thanks a lot for the clear explanation, and sorry for not posting back any earlier. With the information in the bug report I understand why the space is calculated more than once, and why it is difficult to make the system solve the puzzle.

The error from apt upgrade may not be related to your problem with the web front end, but it should not happen either. I would solve that issue anyway. I did not know which version of linux-firmware-free was supposed to be on your system, and thought: "Maybe the system is being upgraded to a...

Did you 'upgrade' or 'dist-upgrade', or maybe 'full upgrade'? How new is 'practically new' :-) Do you know where to find apt sources, and how to have a look at them? (/etc/apt/sources.list) I am new to Proxmox, but I know that with the release of Proxmox6, the underlying Debian system went...