VMware HA Cluster: Set-Advanced HA Settings

Recently a adjustment was made to the vCenter Cluster HA Agent timeout Settings.

Ref: https://kb.vmware.com/s/article/2017778

Performing a Reconfigure for VMware HA operation on a primary node causes an unexpected virtual machine failover

This calles for at script, because there is no way we are going to do this by hand! Feel free to use or alter the script, just remember. It is all done at your own risk.

Continue reading VMware HA Cluster: Set-Advanced HA Settings

Control OpenSLP on ESXi hosts using PowerCLI

I light of recent security vulnerabilities found in the OpenSLP service on ESXi. A recommended workaround is to disable the OpenSLP service all together.

Vulnerability information: https://www.vmware.com/security/advisories/VMSA-2021-0002.html

Workaround KB: https://kb.vmware.com/s/article/82374

This powershell script will help you control the OpenSLP service.

Continue reading Control OpenSLP on ESXi hosts using PowerCLI

Devices that are only supported in 6.7

Back in 2017 VMware changed their policy on VMKlinux Inbox Drivers. This has now come into effect from vSphere 7.0 and onwards.

Unfortunately this means that some otherwise supported hardware platforms, now are having support issue. And you might see the following error in vCenter Skyline Health:

Devices that are only supported in 6.7 or earlier by a VMKlinux inbox driver. This support has been removed in 7.0

This is the case for many Lenovo SR650 servers if they are booting from a SD card, as many will be configured with the Lewisburg SATA AHCI Controller.

Continue reading Devices that are only supported in 6.7

PowerCli Script: Migrate host from missing dvSwitch to new dvSwitch with same Id’s

The purpose of this script is to migrate from one vCenter to another when using dvSwitches. The dvSwitch is bound to vCenter, so in order to migrate hosts from one vCenter to another you can map the networks using this script. All you need to do is disconnect the host from the original vCenter with the VMs still running, but not remove it. Then you connect it to the new vCenter.

Continue reading PowerCli Script: Migrate host from missing dvSwitch to new dvSwitch with same Id’s

PowerCLI Script: Check if you have VMs with USB contollers

I light of many serious vulnerabilities in vSphere ESXi revolve around the USB controller, here is a script that will list the virtual machines that have an USB controller attached.

Requirements:

You need to have the VMware.PowerCLI module installed. This can be done with the commands:

Continue reading PowerCLI Script: Check if you have VMs with USB contollers

Migrate Tags from one vCenter to another

When upgrading to vSphere 7 or any other version, you might choose to create a brand new vCenter instead of migrating the old one. But what about folder structure, tags, distributed switches and so on.

Here I will demonstrate how you can easily migrate your tags from one vCenter to another using VMware PowerCLI.

Continue reading Migrate Tags from one vCenter to another

HPE Amplifier Pack HSM has failed to unregister with vcenter

After upgrading from vCenter 6.7 to vCenter 7.0 you might experience that you HPE Amplifier Pack vLCM HSM can no longer communicate with vCenter.

When trying to edit you are told that it cannot complete the task, and you cannot delete the registration either.

Solution:
Remove the vLCM addon in ILO Amplifier Pack. This can be done in the ILO Amplifier Pack web interface under Configuration and Settings, under Add-On Service Manager.

First stop the Add-on, next remove it. Afterwards you can just choose to download it again.

All this is done at you own risk of course, but if worked for me.

Best of luck! Please let me know if it helped you.

PowerCLI: Get ESXi Hosts Version and Uptime

This is a quick and easy script to get all hosts from a vCenter sorted by Cluster and Host name. You will get the Cluster, Hostname, Version, Build and Uptime in days.

Connect-VIServer <vCenter FQDN>


$clusters = Get-Cluster | Sort-Object
$objects = @()

foreach ($cluster in $clusters) {
    Write-Host "Gathering from cluster: $($cluster.Name)"

    $vmhosts = $cluster | Get-VMHost | Sort-Object
    
    foreach ($vmhost in $vmhosts) {
        $object = New-Object -TypeName PSObject
        $object | Add-Member -MemberType NoteProperty -Name "Cluster" -Value $cluster
        $object | Add-Member -MemberType NoteProperty -Name "Host" -Value $vmhost
        $object | Add-Member -MemberType NoteProperty -Name "Version" -Value $vmhost.Version
        $object | Add-Member -MemberType NoteProperty -Name "Build" -Value $vmhost.Build
        $object | Add-Member -MemberType NoteProperty -Name "Uptime (Days)" -Value (New-TimeSpan -Start $vmhost.ExtensionData.Summary.Runtime.BootTime -End (Get-Date) | Select-Object -ExpandProperty Days)
        $objects += $object
    }
}

$objects | ft -AutoSize

vCenter services not starting after 6.7 Update 3f upgrade

After upgrading a 3 vCenter Enhanced Link Mode environment a customer experienced the following error:

Server is at a higher functional level (1) than partner (<partner vCenter server>)(0) and cannot perform at a lower level.

When checking the domain functional level of each of the three servers, they all state that they are at level 1. The other server are starting like normal.

One server is not starting the vmdir service and it is also that service that is reporting the error. Most of the other services on a vCenter is dependant on this the vmdir.

I do not have a solution as of now. I might have a reason for the issue, and I might have a workaround. VMware is currently trying to figure out how to fix this.

Continue reading vCenter services not starting after 6.7 Update 3f upgrade

vRA 8.1 Custom Resources

Todays announcement of vRealize Automation 8.1 reveals the possibility to use Custom resources in vRA.

I am super exited about that ability. Those who know me, knows that I am a HUGE fan of vRO (vRealize Orchestrator) and the possibility to add anything as a resource in a vRA really opens the product to so many possibilities.

Anything you can imagine, and that you can make vRO do, you can put in a blueprint.

Spoiler alert. New vRA 8.1 feature
Continue reading vRA 8.1 Custom Resources