"Cannot change the host configuration" error message when adding disk storage to a VMware vSphere ESXi Host


Experiencing the "Cannot change the host configuration" and or Call "HostDatastoreSystem.QueryVmfsDatastoreCreateOptions" for object "datastoreSystem-xxxx" on vCenter Server error message when trying to add disk storage to your VMware vSphere ESXi host?  If so, check out my video below where I run through the easy to follow steps in resolving this issue. As with most things there can often be a multiple causes to a particular error, though in my experience I have found in the majority of … [Read more...]

Deploying VMware ESXi on your HP MicroServer automatically with Razor

ESXi install stuck at menu.c32

Razor is a cool new deployment tool for your entire server infrastructure. It's has been and is still being developed as a joint venture between EMC and Puppetlabs (who also make the amazing open source application automation tool Puppet), with the constant influx of code from other open source aficionados as well. For those interested in what, why and how Razor can be used I'd gladly point your here: what, why and how. During the last two months I've been spending a lot of time on lab … [Read more...]

Hardware Virtualization is not a feature of the CPU –Nested VMware ESXi

When installing a virtualized instance of VMware ESXi 5 on top of a physical ESXi 5 instance you may receive the following warning message: <HARDWARE_VIRTUALIZATION WARNING: Hardware Virtualization is not a feature of the CPU, or is not enabled in the BIOS>. As the warning message suggests the reason you are getting the error message is that the virtualized ESXi 5 host that you are trying to install has detected that your (virtual) server isn’t able to (ie: the virtual hardware being … [Read more...]

Longmode is disabled for this virtual machine – VMware vSphere

A TechHead reader recently experienced the following message in VMware vSphere (ESXi) when trying to start a 64-bit VM (Windows 2008 R2) running on their HP Proliant ML110 G5: “This virtual machine is configured for 64-bit guest operating systems”, “However, 64-bit operation is not possible.”, “Longmode is disabled for this virtual machine.”.  This is an error that can often crop up especially when dealing with nested VMs or when deploying new ESXi hosts. The typical reason for this message is … [Read more...]

VMware vCenter Server 5.0 & MS SQL Server ODBC

In my vSphere lab environment I like to try and run things as closely as possible to how it would be run in the “real world”.  Of course this isn’t always possible due to hardware and budget limitations although there are a few things I can do such as running a dedicated database (DB) server VM(s) from which to run the different vSphere related DB instances, such as vCenter, Update Manager, View, etc.  This is as opposed to running a locally installed SQL Server Express instance for every … [Read more...]

“The operation is not supported on the object” – vSphere vApp Deployment Error

When going to deploy a VMware vSphere OVA based vApp package you may receive the following vague error message: “The OVF package is invalid and cannot be deployed” along with “The operation is not supported on the object”.  The latter part of this error message is the message which is more specific to this particular error. One possible cause for the “The operation is not supported on the object” error message is that you are trying to deploy the vApp into a vSphere host cluster with a single … [Read more...]

Fix: VMware vSphere Client – Error 1406. Could not write value

During the upgrade or installation process of the VMware vSphere Client you may find yourself presented with the following error message, “Error 1406. Could not write value …”. As with most issues/errors/problems there are a couple of different ways to resolve it.  The easiest I have found in this case is to delete a particular Windows registry key.  The following basic steps will show you how to resolve this “Error 1406” error message when installing/upgrading your VMware vSphere … [Read more...]

Running VMware vSphere 4.1 on a MacBook Pro with dual disks (incl SSD)

I’ve been using my Intel i7  MacBook Pro daily for work and then during the evening for the past couple of months and have found it, on the whole, pretty good.  I bought my MacBook Pro with a 5400rpm SATA based internal disk as to buy a MacBook Pro with a 7200rpm SATA or SSD drive a special order was required which would have taken a number of days to come through which at the time I didn’t have the luxury of.  Disappointingly my MacBook Pro hasn’t been quite as responsive as I’d … [Read more...]

VMware ESX & ESXi Error – Can’t boot system as genuine NUMA

When running a virtualized instance of ESX/ESXi 4.0 Update 1 from within VMware Fusion or VMware Workstation you may notice the following error message on the front ESX/ESXi screen: “NUMA: 706: Can’t boot system as genuine NUMA. Booting with 1 fake node(s)” I started experiencing this message after beginning to run VMware ESXi (4.0 Update 1) on my new MacBook Pro with VMware Fusion. As you see from the screenshot below the CPU in my MacBook Pro is an Intel i7 with a pair of vCPUs and 4GB of … [Read more...]