proxmox Archives » Vander Host Knowledgebase

After enlarging disk beyond 4TB boundary, Proxmox reports error: attempt to read or write outside of disk ‘hdo’.

Woke up this morning to this after enlarging a big disk yesterday: The computer then tries to boot but fails with a Kernel panic: Doing

How to reduce the size of an LVM disk on a Debian system on Proxmox and an underlying EXT4 disk

Background I’ve never reduced the size of a disk. Everywhere you read up about it there are huge disclaimers that it can break your system,

Oversubscribing LVM-Thin on Proxmox – warnings

Background LVM-Thin is great because you don’t use all the disk space and can share between hosts. However, it’s dangerous to oversubscribe if one of

Proxmox – Unable to wipe disk – disk/partition ‘/dev/sdX’ has a holder (500) – on mirrored disks

Background When deleting a disk from the Proxmox UI, you are presented with several options. Depending on where you started, you might get this problem:

Proxmox installation stuck on 3% creating LVs

Yep, this is apparently normal, mostly if you had data on the drive before, see: https://forum.proxmox.com/threads/proxmox-installation-stuck-on-3-creating-lvs-please-help-guys.94650/

Proxmox SNMP Primer

Introduction Proxmox VE hypervisors need to be monitored. Some of the key items you could monitor are: Disk I/O Wait time CPU temperature Smart Status

Proxmox Backup Server fingerprint issues after adding Let’s Encrypt ACME

After installing an HTTPS certificate, the following problem started occurring: 2024-05-19T08:41:52.869412+02:00 server pvestatd[1481]: backup-server1.example.com: error fetching datastores – fingerprint ‘X’ not verified, abort! 2024-05-19T08:41:53.063071+02:00 server

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