[Unit]
Description=vzdump image backup of hand-managed VMs (devvm, …) to /mnt/backup
Documentation=https://forgejo.viktorbarzin.me/viktor/infra/src/branch/main/docs/architecture/backup-dr.md
After=network-online.target
Wants=network-online.target
RequiresMountsFor=/mnt/backup

[Service]
Type=oneshot
ExecStart=/usr/local/bin/vzdump-vms
# Be gentle on the contended PVE IO domain (sdc) — backup must never starve etcd.
Nice=10
IOSchedulingClass=idle
# Reading a ~77 GB disk + zstd can run long under IO contention; well above
# normal (~15-30 min) but bounded so a hung run can't wedge the timer forever.
TimeoutStartSec=4h