VMware Archives - ITFROMZERO - Share tobe shared!

Configuring VMware vSphere HA and DRS: Admission Control and Optimizing Resource Load Balancing Thresholds

By IT From Zero November 8, 2026

A practical guide to configuring VMware vSphere HA Admission Control using Percentage-based mode and optimizing DRS Migration Threshold, based on real-world production experience. Prevents VMs from failing to restart during failover and stops constant vMotion from causing latency issues for database VMs.

VMware

Comprehensive Guide to Configuring Link Aggregation (LACP) on VMware vSphere Distributed Switch

By IT From Zero November 4, 2026

A 2 AM vSAN outage offered a costly lesson in network design. Here is a detailed guide to configuring LACP on a VMware vSphere Distributed Switch to achieve 20Gbps throughput and eliminate NIC flapping.

VMware

Fixing vCenter 503 Errors Caused by Expired STS Certificates Using fixsts.py

By IT From Zero November 2, 2026

A comprehensive guide to resolving vCenter 503 errors and downtime caused by expired STS Signing Certificates. Safely recover both standalone and Enhanced Linked Mode environments using fixsts.py.

VMware

How to Install and Use VMware PowerCLI: Automate Daily vSphere Health Checks

By IT From Zero November 1, 2026

Learn how to install VMware PowerCLI and build an automated script for daily vSphere health checks. Eliminate manual clicking and catch stale snapshots and low disk space early.

VMware

Guide to Configuring Physical TPM 2.0 on VMware ESXi and Enabling Host Attestation

By IT From Zero October 30, 2026

Detailed guide to configuring physical TPM 2.0 on Dell/HPE servers running VMware ESXi 7.0/8.0, enabling UEFI Secure Boot, and resolving Host Attestation Failed in vCenter.

VMware

How to Configure USB Passthrough on VMware ESXi: Attaching USB Tokens and External Hard Drives to VMs

By IT From Zero October 28, 2026

Is your ESXi virtual machine failing to recognize USB tokens or external hard drives? Learn how to configure Host USB Passthrough correctly and resolve grayed-out device issues and missing Smart Card services on Windows Server.

VMware

How to Upgrade VMware vCenter Server Appliance (VCSA) from 7.0 to 8.0: A Safe 2-Stage Migration Guide

By IT From Zero October 27, 2026

A detailed guide to upgrading VMware VCSA from 7.0 to 8.0 using a two-stage migration process. Includes DNS/NTP checklists, cutover optimization, and post-deployment validation.

VMware

ESXi Host Configuration Backup and Restore with PowerCLI and ESXCLI: Saving Your Virtualization Cluster During Outages

By IT From Zero October 26, 2026

A step-by-step guide to backing up and restoring ESXi host configurations using ESXCLI and PowerCLI. Learn how to recover failed hosts in 10-15 minutes during hardware outages.

VMware

How to Reclaim Storage Space (Space Reclamation / UNMAP) on VMware ESXi

By IT From Zero October 24, 2026

Is your VMware ESXi datastore still full after deleting hundreds of gigabytes inside VMs? Here is a practical, step-by-step guide to reclaiming storage space (UNMAP / Space Reclamation) for Thin VMDKs safely.