Proxmox Backup Set

August 15, 2025

  1. Click the User icon on the User Web Console.

    User Icon

  2. Click Backup Set from the left panel, then create a backup set by clicking the Create button under "Manage Backup Set".

    Manage Backup Set

  3. Enter a name for the backup set. Then select the backup set type, i.e. Proxmox VE Backup.

    Proxmox Backup Set

    Click the Download script for backup assistant VM deployment link to download the DeployAVM.sh file which will create the backup assistant VM.

    AVM link

  4. Copy the downloaded file to the Proxmox VE server. Then run the sh file using Shell to create the backup assistant VM.

    Open Shell

    Run Script

    Check the details of the VM Host, VM Guest and Backup Host. Enter y if the details are correct, otherwise enter n to update them.

    Server Details

    For the VM Storage, these are the supported storage types:

    • dir
    • nfs
    • cifs
    • lvm
    • lvmthin
    • zfspool
    • glusterfs

    While these are the supported VM disk interfaces:

    VM Disk Interface Conditions
    ide

    Hard disk content is included in the backup and supported in restore.

    "CloudInit" disk content is excluded from the backup but a new one will be created during restore.

    Other disk (e.g. ISO) is excluded from both backup and restore.

    scsi
    virtio
    sata
    efidisk

    The disk content will only be included in the backup if it is accessible through the QMP service.

    The EFI disk size should be 528K for dir, nfs, cifs and glusterfs storage types. While for lvm, lvmthin and zfspool the EFI disk size should be 4M.

    tpmstate Disk content is not included during backup but a new one will be created during restore.

    Locked VMs will be skipped during backup.

    AVM Initializing Phase

    The backup assistant VM will configure the network, then download and install AhsayOBM. The following status will be displayed in the Notes:

    • INT - AVM tools service is starting up.
    • DCD - AVM tools service is disconnected from CBS via WebSocket.
    • CNI - AVM tools service is connecting to CBS via WebSocket.
    • CND - AVM tools service is connected to CBS via WebSocket.
    • CLD - AVM tools service is connected to CBS via WebSocket and OBM user profile is loaded.
    • RNI - AVM tools service is re-connecting to CBS via WebSocket.
    • RND - AVM tools service is re-connected to CBS via WebSocket.
    • RLD - AVM tools service is re-connected to CBS via WebSocket and OBM user profile is loaded.
    • DLA - AVM tools service is downloading new AVM tools (OBM) packages.
    • UDA - AVM tools service is pending to update.

    CLD Status

    The setup process might take 5 - 15 minutes which depends on several factors like the network, I/O, etc.

    By default, the backup assistant VM will have two hard disks: 10GB and 1TB hard disks with 4GB memory. The 1TB hard disk will be used as a storage area for user data, backups and temporary working space. These hard disk sizes are provisioned sizes, but the total physical disk usage will be approximately 6GB (5GB plus additional 1GB) for a fresh installation of backup assistant VM.

  5. Once the status is CLD, go back to AhsayCBS and click Confirm to finish creating the backup set.

    Confirm

    Proxmox Backup Set

    If the Backup Assistant VM has not yet finished the installation and you clicked Confirm, this will be the message that will be displayed.

    Error Message

  6. By default, all the nodes will be selected as the source. You may configure this according to your requirements.

    Source

Only one backup assistant VM should be deployed on a Proxmox VE server node for every backup user.
Documentation