senn-techTopics
Storage, backup and replication
The storage journey from Ceph through Vitastor to DRBD and LINSTOR, plus ZFS fileservers, backup paths and what storage costs to run.
11 posts
- 2026-11-04 07:00:00 · StorageLightbits as Proxmox storage: what the new plugin actually deliversProxmox named Lightbits Labs a solution provider with a native storage plugin on 29 October 2026. We read the press release, the repository and the price list, and say who should look at it.
- 2026-10-25 · StorageCetraFS: A VMFS Principle for Proxmox, Read in the CodeCetraFS puts VM images on one shared SAN disk and coordinates the nodes with SCSI commands on the drive itself. We read its licence, maturity and locking model, then compared them with our own storage inventory.
- 2026-10-21 · StorageMeshXFS: A Clustered XFS for Proxmox, Written by an AI Agent LoopMeshXFS brings shared XFS with its own lock manager to Proxmox, written by an AI agent loop. We read the defect file, the benchmark page and the issues, then held it against our own DRBD estate.
- 2026-09-30 · StorageVitastor 3.2, Second Look: Upstream Now Tests Power LossVitastor 3.2.0 adds a simulated power-loss test that 3.1.0 failed in 83 of 200 runs. What it found, what stays open, and what went wrong in our own test.
- 2026-09-26 · StorageMemory Prices After a Year of Crisis: RAM Up 370%, HDDs 134%, SSDs 129%A year into the memory crisis the ComputerBase index shows new record values. The product prices behind that average curve are harsher: a 32 GB kit from 87 to 449 euros, an 8 TB NAS drive from 156 to 345.
- 2026-09-15 · StorageThe TrueNAS Plugin for Proxmox: Official ZFS over iSCSI, Still Not Production ReadyTrueNAS shipped its own Proxmox storage plugin: API-driven provisioning, native ZFS snapshots, no more hand-cut LUNs. We read the source instead of the ad. The architecture is solid, the maturity is officially beta.
- 2026-06-18 · StorageTrueNAS as a File Server Replacement: ZFS Instead of Windows File ServerThe classic Windows file server has had its day. TrueNAS brings ZFS, snapshots and replication, without license costs and with greater data security. An experience report from the migration, including pool layout, "Previous Versions" and AD integration.
- 2025-10-14 · StorageStorage Journey, Part 3: Arrived at DRBD & LINSTORShared-nothing block-level replication, live-migratable VMs without central SAN and commercial support path. Why DRBD/LINSTOR is the right storage foundation for us.
- 2025-07-09 · StorageStorage Journey, Part 2: Vitastor, fast, but youngVitastor promises Ceph-like architecture at significantly lower latency. What we observed in operation, and why 'fast' alone isn't enough.
- 2025-04-22 · StorageStorage Journey, Part 1: What Ceph Taught UsCeph is the Swiss Army knife of distributed storage, powerful, but hungry. Why we started with it, what hardware it really demands, and where it hit limits for our cluster size.
- 2024-12-01 · Cloud SolutionsCloud Migration: The 6-Phase Strategy That Decides SuccessFrom countless migration projects: the 6-phase strategy that decides success or costly failure, from inventory assessment to running operations.