Recent content by powersupport

  1. powersupport

    how to add a new backup plan schedule?

    Hi, To add a custom backup time like every day at 23:00, you need to use the Custom option in the Schedule field. Steps: Go to Datacenter → Backup. Click Add or Edit on your backup job. In the Schedule drop-down Now you can type your own time — for daily 23:00 enter: 23:00 Save the job.
  2. powersupport

    Backup Failure After Debian LXC Upgrade

    Your container is stored as a .raw file on ZFS ( local-zfs-dir ), which does not support snapshots. Because of this, snapshot backups fall back to suspend mode, which uses rsync -A to copy files with ACLs. After the Debian upgrade, systemd now adds ACLs to /var/log/journal. Since ACLs are...
  3. powersupport

    Backups Causing VMs to Run Slow?

    Hi, Backups can cause high disk I/O on the node, and Grafana/InfluxDB is sensitive to that. Even though both run on the same VM, the storage is shared, so the backup load can slow it down and trigger alerts. You can try limiting backup speed, checking I/O usage, or moving the VM to faster storage.
  4. powersupport

    Question around Datacenter Manager

    Hi, Yes, it still makes sense. Even with one Proxmox server and one PBS server, you get faster backups, deduplication, and safer storage. PBS is installed using the ISO file. And yes, it’s best to run PBS on its own physical server.
  5. powersupport

    Clarification on Offline PMG Subscription Activation (POM Mirror-Key & Required Commands)

    Hi Team, We would like to clarify the correct steps for activating Proxmox Mail Gateway (PMG) subscriptions in an offline / air-gapped environment using Proxmox Offline Mirror (POM). We understand that the general workflow is: On a machine with internet access (“mirror / key-management”...
  6. powersupport

    Having an issue with the snapshot

    We are currently having an issue where we provisioned 1x Storage LUN via FC to 4x Servers.We mounted the server on 1 of the server as LVM and we realize we are not able to perform snapshot.Understanding from https://pve.proxmox.com/wiki/Storage that LVM are able to perform snapshot with...
  7. powersupport

    Backup/Snapshots Questions

    Hi, When you back up a VM in Proxmox, it only saves the data that’s actually used, not the empty space. The backup is also compressed, so the file size is usually smaller than the VM’s disk size. For example, if each VM is 200 GB but only 100 GB is used, the backup might be around 60–100 GB...
  8. powersupport

    Backup failed on stopped VM that shares PCI device

    Since you don’t need the PCI device for the backup, you can temporarily disable it in the VM config: # Edit VM 192 config nano /etc/pve/qemu-server/192.conf Comment out the PCI line(s): #hostpci0: 0000:01:00.0 Then run your backup again. After the backup finishes, re-enable the line.
  9. powersupport

    Snapshot causes VM to become unresponsive.

    Hi, This can happen if the snapshot slows down disk I/O. Check logs with: journalctl -xe and cat /var/log/syslog If your disk is qcow2, try changing it to raw. Also Restarting the VM helps because it resets the I/O state.
  10. powersupport

    Secure Boot – Microsoft UEFI CA 2023 Certificate Not Included in EFI Disk

    Hi, Thank you for sharing the information and detailed steps — that’s really helpful! However, my main concern is on the Proxmox side, specifically regarding whether the new Microsoft Secure Boot certificate (referenced in Microsoft’s update notice) will be included in the Proxmox EFI Disk...
  11. powersupport

    Can't add Proxmox Backup Server node

    Hi, The error usually means there’s an invalid character or format in the PBS address you entered. Please check that the URL is correct — for example, use: https://pbs-server.domain.com:8007 Make sure there are no spaces or special characters like @ in the address.
  12. powersupport

    Changing VMID of a VM

    Hi, Changing a VMID directly isn’t supported in Proxmox. The recommended way is to back up the VM and restore it using the new VMID. This ensures everything stays consistent and avoids storage issues,
  13. powersupport

    Automatic Resource Load Balancing (Similar to VMware DRS) in Proxmox VE

    Hi, We are looking for a PVE cluster resource load balancing function similar to VMware DRS automation. Does the PVE cluster have a similar function for automated resource load balancing? Thank you
  14. powersupport

    Clock and Uptime Discrepancy Between Proxmox VE Host and Virtual Machine

    Hi, We have reviewed the host and VM time settings: Both the Proxmox host and the VM are now using Asia/Singapore timezone. NTP is active and synchronized on both systems. The previous 2-hour difference is resolved. The current VM time is only a few minutes ahead of the host, amy I know which...
  15. powersupport

    [SOLVED] Backup_Server: error fetching datastores

    Hi, The error means your Proxmox server can’t reach the backup server on the special backup port (8007), even though the web page works. You can try: • Restarting the backup server • Checking if any firewall is blocking the connection • Making sure the backup service is running Usually...