Redundancy

Setup redundant swap partition on Proxmox 8

8 July 2025
One cannot use swap files on BTRFS and ZFS mirrors (or any other RAID levels), they require separate partitions. For high-availability and to ensure a drive failure doesn't result in a system crash, we need to create mirrored partitions and create our swap partition on top of that.
Text showing the output of proxmox-boot-tool

Configuring BTRFS mirror (RAID1) on Proxmox 8.3 root partition

3 July 2025
Proxmox 8.3 installer has support for BTRFS mirror as a "technical preview", but out of the box the Proxmox installer does not actually create a fault-tolerant installation. In this post we go over how to sync the bootloaders using proxmox-boot-tool
Redundancy