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Virtual Geek

Tales from real IT system administrators world and non-production environment

Blog posts March 2018

Resolved: Reset Esxi forgotten root password using hiren bootCD step by step

Powercli GUI: Determine the EVC Mode that vmware cluster should be configured

vmware vsphere esxi cluster, enhanced vmotion mode evc, cpu manufacturer, cpu generations, failover, drs, ha, vmware high availibility, distributed resource scheduler

I was evaluating one of the old project hosted on VMware in my office for a client, After ruff capacity calculation I found scarce of compute and memory resources in the VMware clusters. Few meetings and decisions, and sharing complete excel data and capacity planning for upcoming VMs, we decide…

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Resolved syslog error: Call OptionManager.UpdateValues for object ha-adv-options on ESXi failed

I configured successfully syslog on esxi server around thousand of esxi server in my environment with Configure syslog on VMware ESXi hosts: VMware best practices. But while configuring syslog on few esxi server I receive below error. In the Esxi edit advanced option on Syslog.global.logHost it was …

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Microsoft Powershell: Export remote registry information to excel

Adding and sharing RDM disk to multiple VMs in VMware step by step

I had a requirement to configure Two node Microsoft failover clustering on VMware VMs in my office, The plan was to configure clustered file server. Virtual machines has to be separated from each other and should be located on different esxi servers, My first task was to provide my colleague wintel …

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How to force a PowerShell DSC client to refresh configuration from pull server

While testing DSC (Desired State Configuration) Pull method on client, I had to forcefully refresh configuration from pull many times, as I could not wait for 30 Mins of frequency time to apply the changes. Below cmdlet helps to refresh configuration immediately. This command need to run as an Admin…

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Part 3: Configure PowerShell DSC Local configuration manager LCM in pull mode and update configuration

This is last part of configuring individual clients local configuration manager (LCM) in DSC pull mode so they can get and retrieve configuration copy every certain refresh frequency mode. You can treat LCM as an agent and it is by default there in on every system. where at least Poweshell version 4…

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Part 2: Generate target server node config for PowerShell DSC pull server

Part 1: Build your first Microsoft PowerShell DSC pull server

Here in this demo I am writing on how to build and configure basic Powershell DSC http pull server, this is just a simple http server no ssl certificate involved, In my earlier article DSC (DESIRED STATE CONFIGURATION) : DEPLOYING ACTIVE DIRECTORY, where I had explained what is desired state config…

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Powershell PoshGUI: Convert user to SID and vice versa

Here I have wrote this small utility for one of my application developer friend, He required a small GUI utility to convert and show user account to SID and SID to account, viceversa, Although I can write WPF xaml gui form as well, but Here I am using simple winform and this is designed using online…

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Reset HP ILO Administrator password from Microsoft Windows

In this second part of my article I will be showing how to reset ILO password on Windows server. For Esxi server check my earlier article Reset HP ILO password from Esxi server. First requirement to this is install HP Lights-out online Configuration utility, which can be downloaded from below links.…

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Powershell and WPF: Build GUI applications tutorial

Part 1: Create WPF XAML powershell GUI form with Visual studio
Part 2: Powershell and WPF: Build GUI applications tutorial

WPF stands for Windows Presentation Foundation, it is an alternative technology to Windows Forms but not a replacement. In this demo, I am showing how to design a basic Powe…

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Create WPF XAML powershell GUI form with Visual studio

Part 1: Create WPF XAML powershell GUI form with Visual studio
Part 2: Powershell and WPF: Build GUI applications tutorial

Last month in pune, India, I got an opportunity to present a small offline webinar for around 10 to 15 users, I was preparing for this session and couldn't write much on my …

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