The Crucial P3 SSD Controversy Unveiled
In the realm of solid-state drives (SSDs), expectations are high, especially when consumers are parting with a significant amount of money in anticipation…
Pivert's Blog
Category: System Administration
6. Shorewall : Haute disponibilité avec `keepalived`
Introduction Que ce soit pour les mise à jour du serveur Shorewall ou pour le «fail-over», configurez votre Shorewall en HA (haute disponibilité)….
Migrate MariaDB Databases to a Galera Cluster on a Kubernetes 3-node Server with OpenEBS ZFSPV StorageClass
Introduction High availability is paramount for stateful applications like MariaDB in Kubernetes (K8S). While our primary focus is MariaDB, these principles can be…
TOP 50 Easy Vim commands to speed up editing
As old IT, Vim is there, and continues to progress with regularly updated versions and forks such as Neovim. The problem: we can’t…
RKE2 cluster on Ubuntu 22.04 in minutes – Ansible Galaxy and Manual options (2 ways)
Here are 2 ways to set up a Ranche Kubernetes Engine cluster of 3 (or more) nodes. Minimum requirements 3 Ubuntu Server 22.04…
Upgrade NVMe on Linux / Proxmox / Ceph
I just upgraded my tiny 512GB NVMe SSD to a 4TB one on each node. I started with the host pve3. Here are…
Comment ajouter un Cluster Network «Full-Mesh» à Ceph sur Proxmox VE
Prérequis Vous avez un cluster Proxmox VE d’au moins 3 nœuds en mode HCI avec Ceph Vous désirez ajouter un réseau de stockage…
Point-in-time recovery (PITR) of PostgreSQL database
This quick guide won’t replace the documentation. It provides an example of PostgreSQL backup, PITR configuration & restore. Backup configuration This is not…
5. Shorewall en entreprise : Traçabilité, documentation des règles, revues d’audit, journalisation
1. Traçabilité Garder toutes les versions et l’historique des changements de configuration. Shorewall étant basé sur des fichiers texte, il suffit d’utiliser git.De…
CephFS backup
Since it’s a snapshot capable file system, it’s very easy to back up. Rdiff-Backup is an efficient backup tool with «deduplication». Easy, powerful,…
CephFS snapshots
CephFS includes snapshot and scheduling capabilities. That’s very efficient and super handy. CephFS snapshots are different from the Ceph RBD snapshots covered here….
ceph-csi on Kubernetes 1.24 (CephFS)
This post is outdated, and will be replaced From K8S 1.24, it’s not possible to use the deprecated Cephfs rootfs Provisioner. The solution…
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