1. E

    Trouble with vzdump/backups (especially windows)

    My linux VMs back up fine, but the windows ones do not. I was using zstd and the backups kept freezing (I couldn't stop the process without restarting the node), so I am trying gzip now. This time, the process at least ends without hanging, but there are still errors on the windows VMs. I'm...
  2. J

    zstd: error 25 : Write error : Input/output error (cannot write compressed block)

    I'm trying to send a VM backup to a S3 bucket that has been mounted to a local file. I have succesfully backed up to this mounted share directly from proxmox with a ~25GB disk, but fails on a ~125GB disk. INFO: starting new backup job: vzdump 900 --notes-template '{{guestname}} baseline...
  3. R

    Backups: ZSTD on Proxmox or TrueNAS?

    Hi. I'm currently doing some tests with Proxmox and TrueNAS (both on dedicated machines connected via 10gbit) and looking at the Proxmox backup function got me thinking: Would it make any sense to send uncompressed Backups to a TrueNAS volume with ZSTD compression (instead of doing the ZSTD...
  4. Proxygen

    [SOLVED] BMLIMIT for ZSTD backups

    I know I can use zstd: N and I have BWLIMIT: 49152 set in /etc/vzdump.conf, but I am not sure zstd takes bwlimit in consideration. the process executing the back shows ... cstream -t 50331648 | zstd --rsyncable '--threads=2' ... I need to lower the bandwidth bc it's straining the disk and...
  5. 0bit

    [SOLVED] Backup compression zstd

    Is it a good idea to enable compression zstd for both, backup and disk (zfs) ?
  6. A

    Backup 'zstd: /*stdout*\: Input/output error'

    In one of my server I frequently run into failed backups on a CIFS location and since this is the case for several month now I thought I start a new thread, also there already is this old thread from another user but probably with a similar problem. What I can say for sure is that this is not a...
  7. R

    backup fails with file too large and VM unreachable

    We run proxmox 6.3-3. A scheduled backup fails for a single VM with: ... NFO: 59% (2.4 TiB of 4.1 TiB) in 5h 37m 20s, read: 124.1 MiB/s, write: 122.1 MiB/s zstd: error 25 : Write error : File too large (cannot write compressed block) ERROR: VM 102 qmp command 'query-backup' failed - got...
  8. I

    lxc bavkup slow ( how i can check what limit the backup speed?)

    i have lxc containers hostes on ceph storage (with speed over 5GBs ) when making backup using zstd the speed is between 20-90MBs the storage i am writing to store the backup have read/write speed around 1GB proxmox 6.2.12
  9. I

    [SOLVED] lxc backup error when ZSTD selected

    on some hosts the ZSTD backup compression is not working? any idea why ? this is the error? Parameter verification failed. (400) compress: value 'zstd' does not have a value in the enumeration '0, 1, gzip, lzo' solution: upgrade proxmox to latest version on all nodes.


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