Storage
Articles in Storage.
How to Resize a Virtual Disk in Proxmox VE (Without Losing Data)
Your Proxmox VM's disk is full and you don't want to rebuild it. Here's how to grow a virtual disk safely in Proxmox VE 9.2, then extend the partition and filesystem inside Linux or Windows guests.
Speeding Up HDD-Backed ZFS Pools in Proxmox VE with a Special Device
HDD-backed ZFS pools on Proxmox VE and PBS choke on metadata-heavy operations like garbage collection and snapshot listing. Here's how a mirrored ZFS special device fixes it, with diagnosis, commands, and sizing guidance.
Speeding Up Metadata-Heavy Workloads on Proxmox VE with ZFS Special Allocation Class Vdevs
Directory listings and PBS garbage collection crawling on an otherwise fast ZFS pool? A special allocation class vdev moves metadata off spinning disks and onto SSD without rebuilding the pool.
How to Mount an NFS Share in Proxmox VE (Add NFS Storage Step by Step)
A beginner's guide to adding NFS network storage in Proxmox VE, covering the GUI and pvesm command-line methods, what each field means, and how to fix common mount errors.
Recovering From LVM-Thin Metadata Exhaustion on Proxmox VE
A Proxmox VE thin pool can hit 100% metadata usage while data space still looks fine, sending VMs into read-only I/O errors. Here's how to diagnose it with lvs and dmsetup, fix it live with lvextend, and stop it from recurring.
How to Mount an NFS Share as Storage in Proxmox VE
Learn how to export a folder from a NAS or Linux server and mount it as NFS storage in Proxmox VE, so you can store ISOs, backups, and templates without filling up your host's local disk.
Diagnosing and Fixing Failed Proxmox VE Storage Replication Jobs
ZFS-based replication keeps Proxmox VE HA working without a SAN, but jobs fail quietly from broken snapshot chains, renamed storage IDs, and full target pools. Here's how to read pvesr's errors, find the real root cause, and trust the GUI again.
Diagnosing and Fixing Flapping Ceph OSDs in a Proxmox VE Hyper-Converged Cluster
A field-tested workflow for diagnosing flapping and down Ceph OSDs on Proxmox VE 9.2 clusters: network, disk, memory, and clock-skew root causes, with exact pveceph and ceph CLI commands to stabilize and fix the cluster.
Tuning ZFS ARC Memory Limits on Proxmox VE Storage Nodes
Learn why ZFS ARC's default memory ceiling causes VM OOM errors on Proxmox hosts, and how to safely cap and persist zfs_arc_max.