Proxmox on Commentary of Takao

Proxmox 備份策略：vzdump、PBS 和災難復原

Mon, 20 Jan 2025 00:00:00 +0000

備份不是可選的。位元腐爛、意外刪除和勒索軟體都是虛擬機器管理程式儲存的目標。 Proxmox VE 提供兩種備用路徑：內建的 vzdump 和專用的 Proxmox 備用伺服器 (PBS)。

為什麼備用很重要

威脅	影響	緩解措施
位元腐	無聲的單位腐敗	完整性驗證 (PBS)
意外刪除	VM瞬間遺失	保留+異地
勒索軟體	加密磁碟	不可變的異地備份

vzdump：內建工具

vzdump 建立虛擬機器和容器的一致備份。對於虛擬機，安裝 Qemu Guest Agent，以便 vzdump 可以在快照之前靜默檔案系統：

Proxmox VE ZFS Storage: Pool 設定, Snapshots, and 優化

Wed, 14 Aug 2024 00:00:00 +0000

Why ZFS on Proxmox

ZFS brings enterprise-grade features to Proxmox VE: data integrity via checksumming (detects and repairs silent corruption), transparent compression, instant snapshots and clones, and flexible RAID-like pooling. It replaces traditional volume management and filesystem layers with a single, unified stack.

Creating a Pool

A pool is built from virtual devices (vdevs). Common vdev types:

Vdev type	Minimum disks	Usable capacity	Description
Mirror	2	50%	Data mirrored across two disks
RAIDZ1	3	67%	Single parity (max 1 disk failure)
RAIDZ2	4	50%	Double parity (max 2 failures)
RAIDZ3	5	40%	Triple parity (max 3 failures)
Stripe	1	100%	No redundancy (not recommended)

Create a mirrored pool:

Proxmox LXC Containers: Complete Management 指南

Wed, 22 May 2024 00:00:00 +0000

What is LXC?

LXC (Linux Containers) is an OS-level virtualization method that runs multiple isolated Linux systems on a single host using a shared kernel. Unlike full virtual machines, LXC containers share the host OS kernel while maintaining their own filesystem, processes, and network stack. This design makes them extremely lightweight and fast to start.

LXC vs Virtual Machines

The choice between LXC containers and VMs depends on your isolation and performance requirements:

Proxmox VE VM Management: From Creation to 優化

Sun, 18 Feb 2024 00:00:00 +0000

Creating a VM Step by Step

Proxmox VE provides a guided wizard for VM creation accessible from the web UI at Create VM or via the qm CLI tool. The wizard walks through eight configuration pages.

General

Set a unique VM ID (an integer, typically starting at 100) and a descriptive name. The name does not affect guest networking — it is purely for identification. Optionally, select a resource pool to organize related VMs.

Proxmox VE Installation and Initial 設定指南

Wed, 15 Nov 2023 00:00:00 +0000

What is Proxmox VE?

Proxmox Virtual Environment (Proxmox VE) is an open-source server virtualization platform that combines KVM-based virtual machines and LXC-based containers under a single web interface. Built on Debian Linux, it integrates enterprise features such as live migration, high availability, software-defined storage, and a built-in firewall. Its agentless design and central management interface make it a popular choice for homelabs, small businesses, and data centers alike.

The platform supports ZFS, Ceph, and LVM for storage, and includes a RESTful API for automation. The installation process is straightforward, but proper configuration immediately after setup is critical for a stable and secure environment.