Proxmox Backup Server: Complete Guide for Homelabs

Last updated: June 15, 2026 | Reading time: 10 minutes

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Why PBS Over Standard Backups?

Proxmox Backup Server (PBS) offers:

• Deduplication - Save 60-80% storage
• Incremental - Only changed blocks
• Encryption - AES-256 at rest
• Remote replication - Offsite copies
• Web UI - Easy management

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Installation

On Dedicated Hardware

# Download ISO
wget https://download.proxmox.com/iso/proxmox-backup-server_3.2-1.iso

# Flash to USB and boot
# Follow installer (similar to Proxmox VE)

As LXC Container (Test Only)

# Not recommended for production
# Use VM or bare metal instead

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Initial Setup

1. Access https://pbs-ip:8007
2. Create admin password
3. Set up storage (ZFS recommended)
4. Add backup user

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Configure Proxmox VE → PBS

# In Proxmox web UI
# Datacenter → Storage → Add → Proxmox Backup Server

ID: pbs-main
Server: 192.168.1.50:8007
Datastore: main
Username: root@pam
Password: ********

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Backup Schedule

# Daily at 2 AM
0 2 * * *

# Weekly on Sunday at 3 AM
0 3 * * 0

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Retention Policies

| Policy | Keep | |--------|------| | Last daily | 7 backups | | Last weekly | 4 backups | | Last monthly | 12 backups |

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Remote Replication

# Sync to offsite location
pbs-client sync job add \
  --remote datastore offsite \
  --schedule '0 4 * * *'

3-2-1 rule: 3 copies, 2 media types, 1 offsite.

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Restore Testing

Test restores quarterly. A backup you haven't tested isn't a backup.