disaster recovery – ITFROMZERO

Backing Up VMware ESXi VMs to Synology NAS with Active Backup for Business: A 3-2-1 Data Protection Strategy

By admin September 14, 2026

A guide to configuring Active Backup for Business on Synology NAS to back up VMware ESXi virtual machines, drawing from six months of real-world production experience. Implement a complete 3-2-1 data protection strategy without expensive backup software.

Virtualization

Configuring Proxmox VE Replication with ZFS: High Availability and Disaster Recovery Without a SAN

By admin September 8, 2026

Proxmox VE Replication uses ZFS send/receive to sync VM disks between nodes every 15 minutes — a practical High Availability alternative to a SAN at zero cost. Covers step-by-step setup via CLI and Web UI, real-world failover testing, and automated monitoring to catch failures before they become incidents.

MySQL

Delayed Replication in MySQL: A “Lifesaver” for Accidental Data Deletion

By admin September 5, 2026

Don't let a simple mistake destroy your entire database. Learn how to configure Delayed Replication in MySQL to create a 'time machine' for instant data recovery.

Virtualization

How to Install Veeam Backup & Replication for Proxmox VE Virtual Machine Backup

By admin June 10, 2026

A comparison of vzdump, Proxmox Backup Server, and Veeam to help you choose the right backup solution for your environment. Step-by-step guide to installing Veeam Backup & Replication Community Edition for free, connecting Proxmox VE, creating backup jobs, and performing Instant VM Recovery.

VMware

VMware ESXi Graceful Shutdown on Power Failure: Proper Configuration to Prevent VM Corruption

By admin June 5, 2026

A guide to configuring graceful shutdown for VMware ESXi during power failures: enabling VMware Tools, setting the correct Autostart order, and integrating a UPS (APC PowerChute or NUT + PowerCLI) for automatic safe shutdown. Real-world experience from an 8-host ESXi cluster in production.

VMware

vSphere Replication: The Cost-Effective DR Alternative to SRM for Small and Mid-Sized Businesses

By admin May 23, 2026

A practical guide to deploying vSphere Replication for professional Disaster Recovery (DR). A cost-effective solution that protects your data without the overhead of expensive SRM licenses.

VMware

VMware Site Recovery Manager (SRM) Setup Guide: An Automated ‘Lifesaver’ for vSphere

By admin May 6, 2026

Don't let infrastructure disasters keep you up at night. VMware Site Recovery Manager (SRM) automates Disaster Recovery, cutting RTO from hours to minutes. Check out this practical guide.

Centos

Mastering ReaR (Relax-and-Recover): A Bare Metal Disaster Recovery Solution for CentOS

By admin May 1, 2026

Don't let server disasters keep you up at night. Learn how to use ReaR on CentOS for full system Bare Metal Recovery in just 15 minutes.

Database

How to Install and Configure PostgreSQL Streaming Replication: Real-time Data Synchronization between Primary and Standby

By admin March 13, 2026

Learn how to set up PostgreSQL Streaming Replication for High Availability and Disaster Recovery. A step-by-step guide to configuration and data synchronization between Primary and Standby.

Virtualization

How to Install and Configure Proxmox Backup Server (PBS) for Automated VM Backups

By admin March 3, 2026

A step-by-step guide to setting up Proxmox Backup Server (PBS) for automated VM backups on Proxmox VE. Covers installation, creating a datastore, scheduling backup jobs, configuring prune policies, and restoring VMs — based on real-world experience running a 12-VM homelab.