A preflight for the Ceph Squid 19.2.6 security update: cluster health, .mgr pool PG counts, client compatibility and the new aes256k CephX key rotation.

August 21, 2026

9 min read read

OpenZFS

ZFS

Storage

OpenZFS Offline Dedup: Is ZFS Dedup Finally Practical?

OpenZFS master now supports FIDEDUPERANGE, letting duperemove and bees dedup existing files through block cloning without the DDT memory cost.

Proxmox Storage: ZFS vs Ceph vs LVM Thin vs RAID

For most single-node Proxmox systems, I would choose ZFS when I want local redundancy and snapshots, or LVM Thin when I want simple local block storage.

Does QEMU Limit Proxmox Virtual Machine Performance?

QEMU adds some overhead to every Proxmox virtual machine, but it is rarely the main reason a workload performs poorly.

Nginx Proxy Manager vs Traefik: Choosing a Proxmox Reverse Proxy

A reverse proxy gives applications running on Proxmox consistent domain names, HTTPS certificates and a controlled path from users to internal services.

Plex vs Jellyfin on Proxmox: Which Media Server Is Better?

Plex vs Jellyfin on Proxmox compared on ease of use, hardware transcoding, Direct Play, remote access, privacy, install options and backups.

QEMU vs KVM in Proxmox: What Is the Difference?

How QEMU and KVM split the work inside a Proxmox virtual machine, where Proxmox fits above them, and what that means for performance and troubleshooting.

Should You Run OPNsense on Proxmox in Production?

When a virtual OPNsense firewall on Proxmox is safe for production: bridges, passthrough, startup order, CARP failover, backups and management access.

Should You Run Pi hole in LXC or a VM on Proxmox?

Pi hole on Proxmox in an unprivileged LXC container or a full VM: resources, isolation, backups, updates, DHCP and running a second DNS instance.

Should You Run Plex in LXC or a VM on Proxmox?

Plex on Proxmox in an LXC container or a VM, compared on Quick Sync and GPU passthrough, isolation, media storage, backups and day to day maintenance.

Should You Run the Ubiquiti UniFi Network Application on Proxmox?

Hosting the UniFi Network Application or UniFi OS Server on Proxmox: VM vs LXC, sizing, networking, backups, migration, updates, HA and limits.

UniFi Controller on Proxmox vs CloudKey: Which to Choose

Should you host the UniFi Controller on Proxmox or buy a CloudKey+? Compare supported apps, VM vs LXC, reliability, backups, updates and cost.

Infrastructure Operations

Hot and Cold Data Tiering: Cut Storage Cost, Keep Speed

How to tier hot and cold data by access pattern and check throughput, IOPS, latency and recall so cheaper storage does not slow applications or training.

SolarWinds Tries a Broadcom Pricing Move, and Customers Push Back

SolarWinds customers react to forced three-year subscriptions and big renewal hikes by weighing Zabbix, PRTG and LogicMonitor as ways out.

Is Terraform the Best Way to Manage Proxmox Infrastructure?

Where Terraform fits in Proxmox: the BPG provider, supported versions, importing existing VMs, state risks, and how it works with Ansible and the UI.

OPNsense vs pfSense on Proxmox: Which Virtual Firewall Is Better?

OPNsense and pfSense compared as Proxmox virtual machines: interface, features, update cadence, licensing, VPNs, CARP high availability and risks.

Proxmox LXC vs VM: Where to Run Portainer and Docker

Proxmox LXC vs VM for Docker and Portainer, compared on isolation, resources, storage, backups, upgrades and clustering, with a clear pick for most users.

Should You Run Traefik in Docker, LXC or a VM on Proxmox?

Comparing Traefik in Docker inside a VM, native in LXC, and Docker inside LXC on Proxmox, with the isolation, socket security and recovery tradeoffs.

Traefik vs Nginx Proxy Manager on Proxmox: Which Is Easier?

Compares Traefik and Nginx Proxy Manager on Proxmox for install, adding services, SSL, Docker automation, troubleshooting, security and backups.

Proxmox Kernel 6.14 Is Out of Support and Homelab Admins Feel It

Proxmox ended support for kernel 6.14. Homelab users weigh DMAR passthrough bugs, NVIDIA driver builds and kernel pinning before moving to 6.17 or 7.0.

GlusterFS Was Supposed to Be Dead, Then It Came Back to Proxmox 9

Proxmox 9 dropped GlusterFS and a community plugin brought it back. The debate over maintenance, enterprise support, Ceph and what the revival can't fix.

The Proxmox Installer Didn’t Fail. That Monster PC Probably Did.

A Proxmox USB that works on one Z790 PC but panics on an i9-14900K build points to hardware. BIOS defaults, XMP, RAM tests and a methodical debug plan.

Ansible vs Terraform for Proxmox Automation: Which Should You Use?

How Terraform and Ansible each automate Proxmox VE, their risks around state, providers and idempotency, and when to use one or both together.

Can Ansible Fully Automate a Proxmox Cluster?

What Ansible can automate in a Proxmox VE cluster, from node setup and cluster joins to VMs, storage, backups and firewalls, and what still needs a human.

Terraform vs Manual Proxmox Deployment: Which Is More Reliable?

Compares manual Proxmox VM deployment with Terraform and the BPG provider on consistency, state, drift, security and when each is the more reliable choice.

Cheap Lenovo Mini PCs and a Raspberry Pi 5 as a Homelab Cluster

Auction Lenovo mini PCs and a Raspberry Pi 5 become a homelab cluster: Proxmox vs CloudStack, CEPH or NAS storage, high availability and useful services.

Proxmox 8 to 9 Upgrade: So Smooth Admins Doubted It

Real Proxmox VE 8 to 9 upgrade reports: what pve8to9 caught, why simple nodes sailed through, and where clusters, LXC hacks and NICs still broke.

Proxmox Kernel Updates Are Exhausting, but Ignoring Them Feels Worse

Why Proxmox kernel updates keep coming, from container escape fixes to update fatigue, and how rollback, staged rollouts and Ansible make them bearable.

Proxmox Mail Gateway 9.1 Is a Boring Release in the Best Possible Way

Proxmox Mail Gateway 9.1 brings Debian 13.5, quarantine seen status, on-demand image loading and encrypted backups to Proxmox Backup Server.

PVE-Electrified: The Proxmox UI Mod That Starts a Knife Fight

PVE-electrified adds command buttons, a React resource tree and faster state updates to Proxmox, and homelab users are split on the clutter.

Virtual OS Museum on Proxmox: Retro Heaven With a Network Gremlin

Running the Virtual OS Museum on Proxmox: importing the VDI, ZFS sizing traps, nesting in a Debian VM, and why its emulated network can hijack your LAN.

Amazon’s Water Number Looks Huge Until the Real Fight Starts

Amazon's data centers used 2.5 billion gallons of water. Why the figure set off a fight over agriculture comparisons, local impact and big tech trust.

The AI Data Center Race Has Turned Into a Power Race

China's $295 billion AI data center plan puts power, grid capacity, supply chains and local politics at the center of the AI race with the US.

The Data Center Panic Is Getting Loud, Weird, and Exhausting

Why data center panic is growing: myths about edge sites replacing data centers by 2030, privacy gadgets that still use the cloud, and real local concerns.

The Data Center Panic Is Overblown, But the Bill Is Still Coming

Data center fears get loud, but power bills, grid debt, farmland, tax deals, and AI bubble risk are real questions communities need answered.

Proxmox Launched an iOS App and Homelab Owners Feel Weirdly Seen

Homelab reactions to the official Proxmox VE Companion iOS app: plain but useful cluster, log and console access, a low-key launch and security caution.

Proxmox VE 9.2 Upgrade: What Admins Report Before Updating

Proxmox VE 9.2 and kernel 7.0 upgrade reports from admins: GPU and vGPU passthrough, ZFS changes, NIC renames, driver issues and when to upgrade.

LXC vs VM on Proxmox: Choosing Isolation for Homelab Services

When to run a Proxmox homelab service in an LXC and when to use a VM: kernel sharing, isolation, Docker stacks, Home Assistant OS and backups.

Upgrading Proxmox 8.2.7 to 9.2 on Six Nodes and a Backup Server

Planning a Proxmox 8.2.7 to 9.2 upgrade on a six-node cluster plus PBS: go to latest 8.x first, run pve8to9, and roll through one node at a time.

Scaling a 40GB/s Ceph Cluster From Five Nodes to Six

A five-node Ceph cluster doing 40 GB/s reads and 2 million IOPS added a sixth NVMe node with no downtime. What smooth storage scaling depends on.

HPE Alletra MP B10000: What Operators Report After Deployment

HPE Alletra MP B10000 operators describe stable data delivery but unfinished management, failover and support workflows that wear teams down.

VAST Data's AI OS: Real Infrastructure or Just AI Theater?

Storage operators debate VAST Data's AI OS: agents, vector search and RAG on one platform, lock-in fears, and which enterprises actually need it.

HPE MSA and Dell PowerVault: Why the Arrays Look the Same

HPE MSA, Dell PowerVault ME5 and Lenovo DS share Seagate (Dot Hill) roots. What really differs: support, licensing, firmware and approved drives.

Kubernetes User Namespaces Are Here and Might Break Things First

Kubernetes user namespaces reached general availability after six years. What they do for container security, and the storage and kernel issues users hit.

Kubernetes User Namespaces Reach GA After Six Years of Work

User namespaces are now GA in Kubernetes after six years. What they change for container security, and the file mapping and storage issues early users hit.

Your Digital Life Outlives You, and You're Probably Handling It Wrong

What happens to self-hosted notes and archives after you die: why most people land on encryption, where killswitch scripts fail, and splitting your data.

Two VMAX Cabinets: Why Some Enterprise Storage Can't Be Reborn

What to do with two retired EMC Symmetrix VMAX arrays: why repurposing fails, and where resale, trade-in, parts and recycling still make sense.

DIY SAN Build: How Modern Dual Controller Storage Really Works

An engineer tries to build a dual-controller NVMe SAN, and the thread explains fencing, active-active limits, multipath and why arrays cost so much.

What to Do With an $800 a Month Vault of Old LTO Backup Tapes

A company pays $800 a month to vault 400 LTO tapes it may not be able to read. Retention policy, migration sampling, legal risk and who should decide.

The Storage Admin Isn't Dead, but AI Is Changing the Job Fast

How AI interfaces, automation and data growth are reshaping the storage admin role, which tasks go first, and which skills keep admins valuable.

Why a New SSD Still Needs Firmware Updates in Your Homelab

Why SSD firmware gets ignored until it causes real pain, and how homelab users balance risk, complacency, and low-level storage maintenance.

Why a 60GB ZFS Snapshot Used 5TB: The Thin Provisioning Trap

Why a 60GB ZFS snapshot in Proxmox can eat 5TB when thin provisioning is off, and why enabling it later won't fix existing disks.

VAST Buying Red Stapler Feels Like a Cloud Pivot With Questions

Why VAST Data's Red Stapler acquisition split the storage crowd: control plane value for hyperscalers versus fears of yet another AI and cloud pivot.

You're Mounting It Wrong: The NFS Mistake That Breaks Homelabs

A practical breakdown of the NFS mistakes that confuse homelab users, especially when they expect shared storage to behave like a local VM disk.

Am I Screwed? A Homelab Data Loss Horror Story

A power outage, failing NVMe reads, and unsupported repair tooling turned one homelab recovery attempt into a blunt lesson about backups and storage risk.

Is Unraid Enterprise Storage? A 30-Person Company's NAS Debate

A 30-person company debates Unraid vs TrueNAS for business storage, and root login, audit logs, support and scaling decide what counts as enterprise.

The NetApp and VAST Data Lawsuit Could Make Storage Buyers Freeze

NetApp claims an ex-CTO built a secret cloud platform later sold to VAST Data. Why that legal risk slows storage deals, especially with cloud providers.

Windows Server 2025 NVMe Gains Meet Storage Admin Skepticism

Windows Server 2025 native NVMe benchmarks impressed storage admins, but NVMe-oF gaps, QA worries and Microsoft's focus keep them wary of production.

TrueNAS 25.10.2: The Stability Update Worth Installing

A practical breakdown of TrueNAS 25.10.2 fixes that prevent upgrade failures, SMB migration issues, and NFS edge-case instability.

BTRFS Inside Proxmox VMs: Smart Flexibility or CoW-on-CoW Trap?

BTRFS inside Proxmox VMs can be great for snapshots and subvolumes, but CoW on CoW, especially on a ZFS host, can add IO overhead and fragmentation risk.

Why My 3-Node Ceph Cluster Is Hitting a Wall at 25GbE

A 3-node Proxmox and Ceph lab with enterprise NVMe and 25GbE hit a ceiling in benchmarks. Why network saturation and cluster size set the limit.

SSD or Hard Drive for 24/7 Data? Why One Disk Isn't Enough

SSD vs hard drive for important 24/7 data: flash wear, unpowered HDDs, why replication is not backup, and why no single disk deserves your trust.

MinIO Repo Archived: 2 Days Testing K8s S3 Alternatives

After the MinIO repo was archived, an r/kubernetes user compared Garage, SeaweedFS, RustFS, Ceph and Minimus, and commenters challenged the Ceph claims.

VMware to Proxmox: Two-Node Clusters and Fibre Channel

A team moving 10 VMware clusters and 21 hosts to Proxmox works through quorum, Fibre Channel LVM, MPIO, thin provisioning and VM conversion steps.

NetApp vs Pure vs Dell for a Small VMware Shop's Storage Refresh

A small VMware shop on HPE Nimble weighs Pure, NetApp, Dell and Hitachi for 80TiB, and the thread turns into a debate on support, Evergreen and lock-in.

Replacing MinIO With Garage: Self-Hosted S3 on Kubernetes

Replacing MinIO with Garage on Kubernetes: what garage-operator v0.1.x automates, from bootstrap, buckets and S3 keys to COSI support and GitOps CRDs.

Deduplication Nightmares: What to Use When TAR Slows You Down

Why TAR archives and deduplication on appliances like Cohesity clash, and which options help: DAR, Bacula, split archives and no pre-compression.

How I Ended Up Running Ceph, StarWind and Synology at Once

A Proxmox homelab story about chasing HA bulk storage with Ceph, StarWind VSAN and Synology, and why letting each tool do its own job won out.

The 200TB Tape Killer: Why Storage People Have Seen This Before

HoloMEM claims a 200TB holographic cartridge that drops into LTO autoloaders. Why storage veterans want demos, pricing and proof before they believe it.

Why Your Proxmox Migration Failed (Hint: It Wasn't Proxmox)

Failed Proxmox migrations usually trace back to VMware era habits: uncapped ZFS ARC, Ceph on 1GbE and misaligned disks, not to Proxmox itself.

Ceph, StarWind or Something Else for HA Storage in Proxmox?

Why highly available Samba or NFS storage in Proxmox is hard, comparing Ceph, CephFS, StarWind VSAN, clustered filesystems and a plain NAS.

Tape Isn't Dead: What a 50PB Closed Site Actually Needs

A closed site with 50PB on IBM TS4500 tape weighs VAST Data, IBM ESS, Ceph and TrueNAS for its aging Tier 1, and why tape still earns its place.

Cheapest S3-Compatible Storage for Proxmox Backup in 2026

Wasabi vs Backblaze B2 vs Hetzner Storage Box for Proxmox Backup Server in 2026: real monthly costs, egress fees, and reliability tradeoffs compared.

Proxmox Clusters and SANs: A Storage Surprise When Leaving VMware

Leaving VMware for Proxmox? A SAN-backed cluster won't behave the same way, and that gap in expectations catches many teams flat-footed.

The 120PB Storage Question That Makes Open Source Look Expensive

A 120PB HPC and AI storage decision for quant research: DDN, open-source Lustre, DeepSeek 3FS, NetApp or VAST, and why support and staffing decide it.

Proxmox in the Enterprise: Gotchas for VMware Admins

What VMware admins run into when moving to Proxmox: storage design, Ceph hardware, AMD Epyc NUMA, Windows licensing, networking, HA and Oracle.

Cost-Effective Ceph at Home: Real Homelab Builds Compared

Cost-effective Ceph homelab builds, from Optiplex mini-PCs to Supermicro servers at $75 to $250 per node, plus the network, storage and noise tradeoffs.

USB vs SATA: The Unexpected Debate Behind Virtualized PBS Storage

Running Proxmox Backup Server as a VM after downsizing: SATA pass-through vs USB drives, virtual disks, the 3-2-1 rule and what one homelabber chose.

How One Bad API Call Took Down an Entire Ceph Cluster

One bad curl request crashed every Ceph monitor in a Proxmox homelab. How the admin rebuilt the monitor store from OSDs, and the API validation lesson.

No Budget for Enterprise Drives? How Proxmox Users Fight SSD Wearout

Proxmox SSD wearout guide: reduce write amplification, tune ZFS, and extend consumer drive life when enterprise SSDs are out of budget.

How a 200TB Proxmox and TrueNAS Homelab Became a Career Portfolio

An IT support tech built a 200TB Proxmox and TrueNAS homelab for about six grand to prove his skills, and turned the build into a living resume.

Ceph, HA, and the Minimum Viable Cluster for SMBs

The smallest Proxmox HA cluster that makes sense with Ceph, from 2-node setups with a QDevice to the 3 to 5 node builds the community recommends for SMBs.

Unraid 7.2.0: Mobile WebGUI, RAIDZ Expansion and an API

Unraid 7.2.0 adds a responsive mobile WebGUI, one-drive ZFS RAIDZ expansion and a built-in API. What upgraders report, and whether to update now.

Running PBS on the Same Host? Why Your Backups Might Crawl

Why Proxmox Backup Server in a VM on the same host backs up slowly on fast hardware: NIC tuning, bare metal or LXC installs, and FIO benchmarks.

TrueNAS vs Ubuntu vs Unraid: Best OS for an Offsite Backup Server

TrueNAS vs Ubuntu vs Unraid for offsite backups: compare cost, setup complexity, ransomware resilience, and long-term maintenance for homelab storage.

How Proxmox Users Fix Full LVM-Thin Storage Pools and Bloat

Proxmox LVM-thin filling up? Learn practical fixes to reclaim space, prevent pool bloat, and stop backup or VM failures before they happen.

Proxmox Ceph vs ZFS: Which Storage for a Homelab Cluster?

Ceph vs ZFS in Proxmox homelabs: a practical comparison of complexity, failure handling, and performance for real-world self-hosted clusters.

Proxmox Ceph vs ZFS vs NAS: HA Storage Compared

Proxmox Ceph vs ZFS vs NAS for high availability: how each handles a node failure, which cluster sizes it fits, and how to pick without overengineering.

Slow Proxmox iSCSI Storage: Fixes for Ex-VMware Users

Why Proxmox iSCSI storage with LVM runs slow after a VMware migration, and the fixes users report: NFS, mirrored ZFS vdevs, a SLOG, multipath and VirtIO.

ZFS Configuration Guide for Optimal Performance

Master ZFS pool creation, tuning, and best practices for data integrity and speed.

January 5, 2024

10 min read