VMware tutorial - IT technology blog
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Handling APD and PDL Errors in VMware vSphere: Understanding and Resolving All Paths Down and Permanent Device Loss

APD and PDL are two types of serious storage failures in VMware vSphere that present with similar symptoms but require completely different remediation approaches. This article walks through how to distinguish, diagnose, and resolve each condition using CLI and PowerCLI — based on real-world experience managing an 8-host ESXi cluster.
VMware tutorial - IT technology blog
Posted inVMware

How to Configure VMware vSphere DPM: Automatically Power ESXi Hosts On/Off to Save Datacenter Energy

VMware vSphere DPM automatically migrates VMs and shuts down unnecessary ESXi hosts when cluster load is low, then powers them back on via Wake-on-LAN or IPMI when needed — saving 30–50% of datacenter power consumption. This guide walks through configuring DPM step by step via vSphere Client and PowerCLI, including monitoring and practical tips for production deployments.
VMware tutorial - IT technology blog
Posted inVMware

Configuring vCenter Server High Availability (vCenter HA): Eliminating the Single Point of Failure in Your vSphere Environment

A step-by-step guide to configuring vCenter Server High Availability (vCenter HA) on VCSA 8.0, covering the Active-Passive-Witness architecture, HA network configuration, failover testing, and practical operational tips from a production environment. Eliminate the single point of failure in your vSphere management layer with automatic failover in 4–8 minutes.