1. E

    [SOLVED] Snapshots get stucked like this

    Hi there snapshots stucked like this on 1 VM, never ends
  2. T


    When I create a snapshot of a VM: a) is that a backup? b) will it back up all my virtual disks? E.g., If I have a virtualized storage server will it back up the vdi that I set up for bulk storage along with the boot vdi? Thanks.
  3. S

    Unwanted snapshots marked with "@--head--"

    Hello, I'm new to the forum and new to using Proxmox, I have a problem that from time to time automatic backups are made with the "@--head--" mark (what is that? :) ), they take up space and I can only delete them from the terminal, but after some time they appear again. Could someone tell me...
  4. B

    Snapshot Crash VMs

    Scenario: 2x Clustered Servers, with StorageZFS replicating between them. Problem: When performing the Snapshot of VM 108, several VMs crashed, and I had to reset to go back. Error log: Jun 19 09:24:25 pve02 kernel: [10160562.899184] debugfs: Directory 'zd112' with parent 'block' already...
  5. K

    VM backup without downtime?

    Coming from this thread: I'm looking for a way to do backups of running VMs without downtime. The idea is to have a full backup, that can be moved to other parts of a cluster, or different proxmox...
  6. K

    Understanding storage requirements for snapshots

    Reading these articles: and Basically tells me "snapshots is something you can do" but nothing more. Recently I tried doing a snapshot and got this as output: If I check with lvs I do see it in the output: On...
  7. S

    Unable to take snapshots on CTs once the disk was moved to a shared NFS storage

    Hi all, I've encountered an issue when I try to take a snapshot of a VM or CT where the disk as moved to a shared NFS storage. In the Snapshot section there is a warnings: The current guest configuration does not support taking new snapshots A screenshot below: This is the root disk...
  8. A

    Is there an easy way to safely "move" a snapshot?

    Let's say I have a VM that's a clean version of the OS, snapshot with the name "clean". I then patch it with the latest patches. I now want to "move" the "clean" snapshot to point to the patched state. At the moment the only safe way to do that is to snapshot the patched state with a new name...
  9. C

    Snapshots failed for every VM "dataset already exists"

    Hi since 2 weeks i cant create any snapshots for any VM i created on my proxmox server. I dont know what to do because running the snapshot in GUI or CLI results in zfs error: cannot create snapshot 'SSD_ZFS/vm-<ANY_ID_HERE>-disk-0@<CHOOSE_ANY_SNAPSHOTNAME_HERE>': dataset already exists Even...
  10. C

    Unable to create snapshots of a VM on a ZFS drive

    Hi all, I've been trying to follow online tutorials of taking snapshots of VMs and to do this it requires the disk to be a file level storage (except lvm-thin(according to documentation). So whenever I use ZFS as the disk and then create a VM, it still doesn't allow me to change the format...
  11. D

    Ceph Snapshots?

    Hi, we have a Proxmox cluster with CEPH. Can we somehow enable automatic snapshots like with ZFS? If yes, how does it work?
  12. A

    [SOLVED] The current guest configuration does not support taking new snapshots

    Hi all, I've had a look through the threads for users who have experienced the same issues with being unable to take snapshots on VM's, however, my VM's are using the qcow2 virtual disk format. It weirdly seems limited to just the Windows Servers, however, Windows 10 Pro and Linux servers seem...
  13. J

    Doing a snapshot of the base OS install in ZFS

    I'm about to make some big changes to my Proxmox installation (I'm going to try VGPU Unlock), and I would like to be able to revert back to my present state if something goes wrong. Since I've installed Proxmox in a ZFS file system, is there any way to do what I want?
  14. K

    [SOLVED] Windows freezes when backup / snapshot

    Dear Community, We are using several Proxmox servers and we have some random issues with Windows VMs (Windows 10 & Windows Srv 2019, 2022) when VMs dies during backup and/or taking snapshots. No issues with any Linux VMs or LXCs. It happens on multiple servers but mostly on Intel Xeon E5-26*...
  15. L

    ZFS Storage Problem - Snapshots

    Hello everybody! I have a problem with my second hard drive in Proxmox. This is not displayed correctly in my opinion. As you can see in the pictures, the free space varies between 300GB and 600GB. On the hard disk there are two VMs which have 1x500GB and 1x64GB + 1x snapshot. Due to my storage...
  16. fireon

    [TUTORIAL] ZFS-Autosnaptshot inkl. Rollback und Daten direkt recovern (Windows/Linux)

    Hallo Leute, das es immer wieder mal vorkommt das man Daten von ner halben Stunde oder 10 Minuten benötigt, hab ich mich mal über ZFS-Autosnapshot hergemacht um genau diesen Bereich und das Theme Verschlüsselungstrojanern abzudecken. Ich hab für mich einen Mittelweg gefunden um dies auf...
  17. D

    VM Snapshots

    Yes, I know snapshots are not backups...:) In VSphere/ESXi, snapshots continue to grow as more and most data is changes since the last snapshot. VMware documentations says to not keep snapshots around for more than 3-5 days. If you go too long, coalescing (merging) the snapshot into the...
  18. D

    Snapshot - crashes VM by messing up the disks

    Sometime last year I found that when snapshotting a running container with mariadb would cause the database to be unable to complete any queries - the process was running but queries just stacked up. It was as if the fs was missing briefly but could not recover. It was assumed it was a mariadb...
  19. G

    Can you save a snapshot to a NFS volume?

    I have a NFS mount ( pointed at /mnt/pve/volume2Snapshots which I would like to save VM snapshots to. I noticed in the WebGUI, when taking snapshots there is no option to select the storage device and the snapshots are saved to whatever...
  20. H

    How to continue the ZFS incremental storage replication (and avoid a full/base sync) after rolling back a guest

    There is a way to continue PVE-ZFS storage replication as usually after rolling back a guest without having to do a full/base synchronization? I haven't been able and I haven't find nothing on the internet neither. I have tried: to prune dataset snapshots in the hot spare machine to match the...


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