Manage storage & VM drives

Manage storage & drives on Proxmox

The Proxmox storage hosts VM, ISO disks, backups and snippets. Understanding local-lvm, adding volumes and resizing avoids service interruptions. This guide details allocation, disk extension and space surveillance.

Common storage types

• local, ISO, templates, backup files
• local-lvm, VM disks (LVM thin logical images)
• local-zfs, if ZFS configured (native snapshots)

Monitor space

1. Datacenter → Storage, use by volume
2. Node → Summary, root disc and LVM
3. Panel monitoring, monitoring Proxmox
4. 90 % advance alert to avoid VM write-off

Add Disc to VM

1. VM stopped or online (hot-add if enabled)
2. Hardware → Add → Hard Disk
3. SCSI/VirtIO bus, storage local-lvm, size Go
4. In the OS: partition, LVM expands, or mount new volume

Resize an existing disk

1. Hardware → disk → Resize, increase size
2. Linux: growpart + resize2fs or lvextend
3. Windows: Disk Management → Extend Volume

Cleaning

• Remove unused ISO
• Archive or delete old backups vzdump
• Consolidated snapshots, snapshots

Troubleshooting

• Cannot allocate extent, LVM full, free space
• VM read-only, saturated storage, emergency release