Storage
Articles in Storage.
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How to Add BTRFS Storage in Proxmox VE (Step-by-Step Guide to the New Storage Type)
BTRFS shows up in the Proxmox VE storage dropdown with zero explanation and no setup wizard. Here's how to format a disk, mount it correctly, and register it as usable VM and container storage.
How to Enable ZFS Compression in Proxmox VE (lz4 vs zstd Explained)
ZFS compresses your VM disks by default in Proxmox VE, but lz4 isn't your only option. Learn how to check your real compression ratio and switch to zstd for better space savings.
How to Choose a ZFS RAID Level When Installing Proxmox VE (RAID0, RAID1, RAID10, and RAIDZ Explained)
The Proxmox VE installer lets you pick a ZFS RAID level before you even see the web interface. Here's what RAID0, RAID1, RAID10, RAIDZ-1, RAIDZ-2, and RAIDZ-3 actually mean, how many disks each needs, and how to set the Advanced Options correctly the first time.
How to Add a New Disk as LVM-Thin Storage in Proxmox VE (Step-by-Step Guide)
Turn a spare disk into LVM-Thin storage in Proxmox VE. Step-by-step instructions for the GUI and the command line, plus the errors that trip up beginners the first time.
How to Remove or Rename Storage in Proxmox VE (Fix "Already Defined" Errors)
Proxmox VE has no rename button for storage, and deleting one wrong can break a VM's disk. Here's how storage.cfg actually works, and the safe way to remove or rename an entry.
How to Pass Through a SATA or SAS HBA Controller to a VM in Proxmox VE (For TrueNAS and Unraid)
Give a TrueNAS or Unraid VM direct control of your drives by passing through the whole HBA controller in Proxmox VE, instead of relying on virtual disks that hide SMART data and drive identity.
How to Install OpenMediaVault in a Proxmox VE VM (Step-by-Step NAS Setup Guide)
Turn a Proxmox VE virtual machine into a lightweight, easy-to-manage NAS with OpenMediaVault 8. A complete beginner's walkthrough covering VM setup, storage disks, installation, and your first SMB share.
How to Replace a Failed Disk in a Proxmox VE ZFS Pool (Step-by-Step Guide)
Your ZFS pool just went DEGRADED. Here's exactly how to identify the failed disk, swap it safely, and resilver a mirror or RAIDZ pool back to healthy on Proxmox VE 9.x.
How to Enable Discard (TRIM) for VM Disks in Proxmox VE and Keep Your SSD Fast
Thin-provisioned VM disks in Proxmox VE don't shrink back down on their own, and SSDs do extra write work they don't need to. Here's how to turn on Discard and TRIM the right way.
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