Today I got an error when selecting the “VMware EVC” option in the Cluster Settings at my vCenter 4.0 host with multiple HP Blades with same CPU. Error message:

Method not found: ‘Vmomi.HostSystemArray EVCState.get_BadSoftwareHostsBlockingEVC()’

Solution:

This issue occurs when a system installed with vSphere 4.1 and you use vSphere 4.0 Client on that system to access vCenter Server 4.0.

To workaround this issue, install a vSphere 4.0 Client on a system on which you have not installed vSphere4.1 Client earlier and then update the EVC cluster using the vSphere 4.0 Client.

Source: VMware

Today on the Dutch VMug forum somebody got some trouble to connect a ESX host after changing the “root” permissions from Administrator to Read-only. Nice problem to find a solution, I created the same situation in my test environment.

Situation:

User: Root – Role: Read-Only

You can’t connect the host anymore with your VI Client..

Solution:

… but you can still login at the console or putty session.. so what to do:

Edit the authorization.xml file: nano /etc/vmware/hostd/authorization.xml

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