Insight in progress of container backup with suspend

[wbk]

Hi all,

I recently (and temporarily) switched storage backend for a container from snapshot capable to not snapshot capable.

Now the backup makes two rounds:

• rsync while live to temp storage
• suspend container and rsync again for verification

The level of detail in the task log is lower than I had hoped; it tells me when the process started and the current step, but no further timestamps.

Currently the container is suspended, so I guess it is past half way the total process. I hope to get an estimate for the remaining rsync runtime (and thus when the container comes back online) by finding out when the container was suspended (or any other means; this one seemed most straightforward).

Where on the host should I look? I tried journalctl (any entry by pvedeaimon the last day), and the Proxmox-related files in /var/log (not all in pve*, there were too many).

Is there a better way to gauge the progress (rsync runs in some order, perhaps I can hook into that?)

 

[wbk]

Update: in the mean time, it has finished the second round:

INFO: starting first sync /proc/71143/root/ to /var/tmp/vzdumptmp777200_104
INFO: first sync finished - transferred 391.30G bytes in 27610s
INFO: suspending guest
INFO: starting final sync /proc/71143/root/ to /var/tmp/vzdumptmp777200_104
INFO: final sync finished - transferred 5.44G bytes in 6833s
INFO: resuming guest
INFO: guest is online again after 6833 seconds
INFO: creating Proxmox Backup Server archive 'ct/104/2026-07-24T23:32:06Z'

It does tell how long it has spent afterwards, but some intermediary info would have been nice.

The comparison with PBS and the actual transfers are more detailed, allowing me to guess it'll take half an hour more for the backup to be finished (but less interesting, as the container is already back online):

INFO: processed 228.867 GiB in 28m, uploaded 72.203 GiB
INFO: processed 241.446 GiB in 29m, uploaded 72.203 GiB
INFO: processed 254.158 GiB in 30m, uploaded 72.203 GiB
INFO: processed 266.862 GiB in 31m, uploaded 72.203 GiB

If someone knows to point me to the log where I can find status changes (booted/suspended/restarted/etc) for containers I'd still be all ears!

Edit, as a data point for others: this system:

• container straight on single spindle spinning rust (SATA)
• temp storage on SSD
• 1 gbit link from PVE to PBS
• PBS storage on SSD backed RAID10 HDDs (SAS)