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Troubleshooting vimService Creation Failed 403 in vCenter
The error vimservice creation failed: error forbidden 403 during vSphere/vCenter operations typically indicates that the client cannot establish a VIM (vSphere API) session because of HTTP 403…
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VMKPing “Invalid Argument” While Testing vMotion Network
When testing vMotion network connectivity from an ESXi host, vmkping can return Unknown interface ‘vmkX’: Invalid argument even though the VMkernel adapter exists and works for vMotion.…
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ESXi NFSv4 Error Decoder & Log Analyzer
NFSv4 failures in ESXi appear as NFS4ERR_* codes, lockd/portmap conflicts, and RPC timeouts in vmkernel.log. This script suite extracts all NFSv4 errors with detailed explanations,…
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ESXi SCSI Decoder & VMkernel Log Analyzer
VMkernel logs contain SCSI sense codes, path states, and HBA errors in hex format that decode storage failures like LUN timeouts, reservation conflicts, and path…
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VMware Storage Performance Testing Suite
ESXi hosts provide fio, ioping, and esxtop for storage benchmarking directly from CLI, while vCenter PowerCLI aggregates performance across clusters/datastores. This script suite generates IOPS, latency, and throughput charts…
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Basic PS scripts for VMware Admin
VMware admins rely on PowerCLI, esxcli one-liners, and Python scripts for daily tasks like health checks, VM migrations, and storage monitoring to save hours of…
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NFS APD on ESXi – End‑to‑End Troubleshooting Guide
What APD Means for NFS Datastores For NFS, an APD essentially means the ESXi host has lost communication on the TCP connection to the NFS…
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PowerCLI Scripts for VMware Daily Administration and Reporting
Prerequisites Before running these scripts, ensure you have the VMware PowerCLI module installed and are connected to your vCenter Server. You can connect by running…
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