Disk space usage is not freed up

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csaba-toth-dotech

New Member
Jan 1, 2026
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Here is the workflow:
* i have a PVE and PBS integrated
* i setted up several VMs to automatically backup every night to PBS
* one VM has 500 GB of storage, and i didn't wanted to back it up anymore
* i deleted the VMs backups via the garbage icon one-by-one, started from the youngest to the oldest
* runned the prune action
* because disk usage is not freed up immadiatelly, i runned the prune action several days later too
* disk usage is still not freed up

This happened about two week ago, but the disk usage is not freed up! I have a 1 TB disk assigned for the PBS, so it is very seeable if that minimum 500 GB of disk usage is freed up or not.

How can i summarise which VM's backup uses how many space on disk? To see how the 1 TB disk capacity I allocated to PBS is distributed among the VMs.
How can i remove that VM's backups from the disk?
How can i be sure that only real VM's backups are exists and no junks are in the storage?
 
Hi,

Have you run the Garbage Collect on your datastore ?
Can you give the log ?

csaba-toth-dotech said:
How can i summarise which VM's backup uses how many space on disk? To see how the 1 TB disk capacity I allocated to PBS is distributed among the VMs.
Click to expand...
Not possible, but request exist to enhance this : https://bugzilla.proxmox.com/show_bug.cgi?id=5799

csaba-toth-dotech said:
How can i remove that VM's backups from the disk?
Click to expand...
Prune and after 24H run the Garbage Collect

csaba-toth-dotech said:
How can i be sure that only real VM's backups are exists and no junks are in the storage?
Click to expand...
It's the role of the Garbage Collect.

Best regards,
 
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I needed to cut the post to two, because it was too long, so here is the Prune Job log:

Code: 
2026-01-05T00:06:04+01:00: prune job 's-07c94daf-0f15'
2026-01-05T00:06:04+01:00: Starting datastore prune on datastore 'pve', root namespace, down to full depth
2026-01-05T00:06:04+01:00: retention options: --keep-daily 3 --keep-weekly 5 --keep-monthly 4
2026-01-05T00:06:04+01:00: Pruning group :"ct/107"
2026-01-05T00:06:04+01:00: keep ct/107/2025-08-30T23:00:02Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-09-27T23:00:04Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-10-04T23:00:04Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-11-02T00:00:10Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-11-16T00:00:13Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-11-23T00:00:00Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-11-30T00:00:03Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-12-04T00:00:10Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-12-05T00:00:03Z
2026-01-05T00:06:04+01:00: keep ct/107/2025-12-10T00:00:07Z
2026-01-05T00:06:04+01:00: Pruning group :"ct/117"
2026-01-05T00:06:04+01:00: keep ct/117/2025-11-16T00:10:41Z
2026-01-05T00:06:04+01:00: keep ct/117/2025-11-23T00:10:36Z
2026-01-05T00:06:04+01:00: keep ct/117/2025-11-30T00:10:38Z
2026-01-05T00:06:04+01:00: keep ct/117/2025-12-04T00:10:56Z
2026-01-05T00:06:04+01:00: keep ct/117/2025-12-05T00:11:21Z
2026-01-05T00:06:04+01:00: keep ct/117/2025-12-10T00:11:37Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/151"
2026-01-05T00:06:04+01:00: keep vm/151/2025-08-30T23:10:01Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-09-27T23:10:59Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-10-25T23:01:14Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-11-02T00:03:35Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-11-09T00:01:07Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-11-16T00:01:25Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-11-23T00:01:31Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-11-30T00:01:12Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-12-06T00:01:20Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-12-10T00:04:13Z
2026-01-05T00:06:04+01:00: keep vm/151/2025-12-11T00:01:44Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/101"
2026-01-05T00:06:04+01:00: keep vm/101/2024-10-15T23:00:09Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-08-30T23:00:01Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-09-27T23:00:00Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-10-04T23:00:01Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-11-02T00:00:01Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-11-16T00:00:06Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-11-23T00:00:07Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-11-30T00:00:07Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-12-05T00:00:10Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-12-06T00:00:05Z
2026-01-05T00:06:04+01:00: keep vm/101/2025-12-10T00:00:16Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/162"
2026-01-05T00:06:04+01:00: keep vm/162/2025-08-30T23:07:35Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-09-27T23:06:29Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-10-25T23:06:41Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-11-02T00:08:44Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-11-09T00:07:44Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-11-16T00:08:56Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-11-23T00:02:46Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-11-30T00:05:16Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-12-05T00:09:55Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-12-06T00:08:36Z
2026-01-05T00:06:04+01:00: keep vm/162/2025-12-10T00:17:13Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/148"
2026-01-05T00:06:04+01:00: keep vm/148/2025-08-30T23:09:21Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-09-27T23:10:19Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-10-25T23:00:30Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-11-02T00:00:37Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-11-09T00:00:15Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-11-16T00:00:29Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-11-23T00:00:33Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-11-30T00:00:17Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-12-06T00:00:21Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-12-10T00:00:41Z
2026-01-05T00:06:04+01:00: keep vm/148/2025-12-11T00:00:35Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/161"
2026-01-05T00:06:04+01:00: keep vm/161/2025-10-25T23:06:33Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-11-02T00:08:10Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-11-09T00:07:33Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-11-16T00:08:47Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-11-23T00:02:33Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-11-30T00:05:04Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-12-05T00:08:45Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-12-06T00:08:24Z
2026-01-05T00:06:04+01:00: keep vm/161/2025-12-10T00:16:07Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/150"
2026-01-05T00:06:04+01:00: keep vm/150/2025-09-27T23:10:54Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-10-25T23:11:13Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-11-02T00:11:08Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-11-09T00:11:09Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-11-16T00:11:07Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-11-23T00:11:03Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-11-30T00:11:04Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-12-04T00:11:25Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-12-05T00:11:49Z
2026-01-05T00:06:04+01:00: keep vm/150/2025-12-10T00:12:04Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/160"
2026-01-05T00:06:04+01:00: keep vm/160/2025-08-30T23:01:16Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-09-27T23:00:32Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-10-25T23:01:28Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-11-02T00:04:45Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-11-09T00:01:22Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-11-16T00:01:40Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-11-23T00:01:46Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-11-30T00:01:27Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-12-05T00:01:42Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-12-06T00:01:35Z
2026-01-05T00:06:04+01:00: keep vm/160/2025-12-10T00:05:50Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/163"
2026-01-05T00:06:04+01:00: keep vm/163/2025-08-30T23:07:52Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-09-27T23:06:39Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-10-25T23:06:49Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-11-02T00:09:15Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-11-09T00:07:53Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-11-16T00:09:08Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-11-23T00:02:57Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-11-30T00:05:30Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-12-05T00:10:13Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-12-06T00:08:59Z
2026-01-05T00:06:04+01:00: keep vm/163/2025-12-10T00:18:17Z
2026-01-05T00:06:04+01:00: Pruning group :"vm/136"
2026-01-05T00:06:04+01:00: keep vm/136/2025-08-30T23:09:08Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-09-27T23:10:02Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-10-04T23:10:05Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-11-02T00:00:18Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-11-16T00:00:13Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-11-23T00:00:18Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-11-30T00:00:02Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-12-06T00:00:06Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-12-10T00:00:07Z
2026-01-05T00:06:04+01:00: keep vm/136/2025-12-11T00:00:17Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"ct/109"
2026-01-05T00:06:04+01:00: keep ct/109/2025-12-10T02:34:23Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"ct/108"
2026-01-05T00:06:04+01:00: keep ct/108/2025-11-02T02:30:32Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-11-16T02:30:43Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-11-23T02:30:39Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-11-30T02:30:39Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-12-04T02:30:52Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-12-05T02:30:50Z
2026-01-05T00:06:04+01:00: keep ct/108/2025-12-10T02:32:31Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"ct/106"
2026-01-05T00:06:04+01:00: keep ct/106/2025-11-02T02:30:04Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-11-16T02:30:02Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-11-23T02:30:05Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-11-30T02:30:02Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-12-04T02:30:14Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-12-05T02:30:06Z
2026-01-05T00:06:04+01:00: keep ct/106/2025-12-10T02:30:08Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"vm/105"
2026-01-05T00:06:04+01:00: keep vm/105/2025-11-02T02:30:22Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-11-16T02:30:24Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-11-23T02:30:25Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-11-30T02:30:28Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-12-04T02:30:36Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-12-05T02:30:32Z
2026-01-05T00:06:04+01:00: keep vm/105/2025-12-10T02:31:34Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"vm/103"
2026-01-05T00:06:04+01:00: keep vm/103/2025-11-02T02:30:01Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-11-16T02:30:02Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-11-23T02:30:02Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-11-30T02:30:03Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-12-04T02:30:14Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-12-05T02:30:06Z
2026-01-05T00:06:04+01:00: keep vm/103/2025-12-10T02:30:06Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"vm/100"
2026-01-05T00:06:04+01:00: keep vm/100/2025-11-02T02:30:01Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-11-16T02:30:08Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-11-23T02:30:08Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-11-30T02:30:09Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-12-04T02:30:03Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-12-05T02:30:14Z
2026-01-05T00:06:04+01:00: keep vm/100/2025-12-10T02:30:00Z
2026-01-05T00:06:04+01:00: Pruning group System-Hosts:"vm/104"
2026-01-05T00:06:04+01:00: keep vm/104/2025-11-02T02:30:13Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-11-16T02:30:06Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-11-23T02:30:17Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-11-30T02:30:16Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-12-04T02:30:23Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-12-05T02:30:18Z
2026-01-05T00:06:04+01:00: keep vm/104/2025-12-10T02:30:55Z
2026-01-05T00:06:04+01:00: TASK OK

The VM i removed is 123, it didn't show up in the prune log. And i am very sure, that the files are not removed, that VM is 500 GB, i should see when the files are freed up.
 
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