Category Archives: VMware

PowerShell Script to report on LUNs mapped to IGroups

Posted on November 27, 2011 by Calvin Scoltock

I had a requirement to produce a report of which of my NetApp LUNs were mapped to which of my 3 VMware vSphere clusters. Each cluster has its own Igroup on the NetApp filer: – Prod-Cluster Dev-Cluster UAT-Cluster Some LUNs … Continue reading →

Posted in NetApp, Powershell, vSphere | Leave a comment

Get LUN id of Raw Disk Mappings with PowerCLI

Posted on November 27, 2011 by Calvin Scoltock

I had a need to get the LUN id of all of the Raw Disk Mappings for a particular virtual machine running on VMware vSphere. I could see this information within the vSphere Client by editing the setting of the … Continue reading →

Posted in PowerCLI, Storage, VMware | 3 Comments

ESXi Hosts Becoming Disconnected from vCenter

Posted on November 27, 2011 by Calvin Scoltock

Recently I have been experiencing problems with ESXi 4.1 hosts becoming disconnected from vCenter. Right clicking on the host and selecting Connect does not normally fix the problem. Also logging in directly to the host with the vSphere Client usually … Continue reading →

Posted in VMware, vSphere | 5 Comments

Repeating ADAM_VMwareVCMSDS Error Every Minute in Windows Active Directory Web Services Log

Posted on October 29, 2011 by Calvin Scoltock

I have seen the following error repeat EVERY minute in the Windows Active Directory Web Services Log on Windows 2008 R2 Servers running VMware vCenter 4.1. “Active Directory Web Services encountered an error while reading the settings for the specified … Continue reading →

Posted in Configuration, Installation, VMware, vSphere | Leave a comment

ESXi4.1 vMotion using incorrect vmnic

Posted on June 16, 2011 by Calvin Scoltock

I have a number of esxi 4.1 update 1 hosts configured as follows: – vSwicth0 – vmnic0, vmnic1, vmnic2, vmnic 6 – all active VMKernel Port – Management – enabled for Management – Active vmnic0, Standby vmnic2, unused vmnic1 and … Continue reading →

Posted in Configuration, VMware, vSphere | 2 Comments

Storage vMotion taking twice as long when block sizes do not match

Posted on November 25, 2010 by Calvin Scoltock

While trouble shooting performance issues at a customer I noticed in esxtop that the MB written/s were double the MB read/s when performing a Storage vMotion when the block sizes of the source and target datastores where different. The customer … Continue reading →

Posted in VMware, vSphere | Leave a comment

Changing ESX IP Address via Service Console

Posted on March 24, 2010 by Calvin Scoltock

If you need to change the ESX (3.5 or 4.0) Service Console IP address but can not connect to it via the vSphere (or VI) Client then it can be changed from the console. Access one of the virtual terminals, … Continue reading →

Posted in VMware, vSphere | Leave a comment

Location of Sysprep files with VMware Virtualcenter 2.5

Posted on March 24, 2010 by Calvin Scoltock

The Basic System Administration guide for VirtualCenter 2.5 requires that the sysprep files be extracted to the VirtualCenter server for guest customization to be available when cloning a virtual machine. Below are the download links for various Microsoft OSes and … Continue reading →

Posted in VMware | Leave a comment

Installing IBM Systems Director 6.1.1 Common Agent on ESX 4.0

Posted on March 22, 2010 by Calvin Scoltock

You should be able to push the IBM Systems Director 6.1.1 Common Agent out from the IBM Systems Director to the ESX Hosts.  Firstly download the IBM Systems Director 6.1.1 Common Agent for Linux on x86 from the IBM Systems … Continue reading →

Posted in IBM, IBM Systems Director, VMware | Leave a comment

Installing vSphere 4 on IBM System x3650M2 via KVM Switch and IBM 17″ Rack Flat Panel Monitor

Posted on March 20, 2010 by Calvin Scoltock

When installing vSphere 4 on an IBM System x3650M2 connected via a 2×8 Local Console Switch to the IBM 17″ Rack mounted Flat Panel Monitor the display could not be displayed on the screen using the Graphic Mode, I got … Continue reading →

Posted in Installation, VMware, vSphere | Leave a comment