VMware vSphere & ESXi Hub: Tools, Error Fixes and Guides

HubVMware vSphere & ESXi tools, errors & guides · Updated June 2026

VMware vSphere & ESXi: tools, error fixes and guides

Everything we publish for VMware vSphere and ESXi in one place: a searchable error reference that tells you how to resolve each failure, a PowerCLI command generator that writes the script for you, and step-by-step troubleshooting guides for the problems that take a host or a cluster down. Free, no signup, browser-based.

VMware ESXi Error Reference

Search any vSphere or ESXi error by code, message or symptom — PSOD, APD, vMotion, host not responding — and get the cause plus the exact resolution, with the esxcli or PowerCLI command and a verification step.

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VMware tools

Interactive, client-side helpers for daily vSphere work.

Troubleshooting guides

Long-form, hands-on, each with copy-paste commands and a custom diagram.

Live ESXi Purple Screen of Death (PSOD): Diagnose and Recover Read the exception and backtrace, tell driver from hardware from heap exhaustion, capture the coredump, recover the host and prevent recurrence. With an annotated purple-screen diagram. Live ESXi Host Not Responding / Disconnected in vCenter The fix order that resolves it fastest: confirm the host is up, restart hostd and vpxa, free a full log partition, check ports 902 and 443, then reconnect or re-add. Decision-tree diagram.

Common VMware errors, with fixes

A few of the most-searched failures. Each opens the full searchable reference with the resolution steps.

Companion tools and series

VMware sits next to the rest of our virtualization and sysadmin toolbox.

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