BULK UNREGISTER / REGISTER VMS ON VSPHERE 6.0

[vmk2014]

Hi All,

I want to perform bulk removal/unregister of VM's from source environment vsphere host 6.0 and Register/add that VM's to the swing host ESXi 7.0. for migration purpose.Steps will like

1) Shut down all the VM's gracefully from C:\temp\VMliste

2) Remove VM's from inventory or unregister from source environment i.e. ESXi 6.0 and Register/add that VM's to the swing host ESXi 7.0. for migration purpose. C:\temp\vmliste ( For unregister and registering)

is it possible from power cli to perform this task to reduce the downtime ? Any help will appreciated.

Thanks

Vmk

[scott28tt]

@vmk2014 

Have you searched this area for examples of code for the 3 steps you wish to carry out?

1. Shutdown

2. Unregister

3. Register

[vmk2014]

Thanks Scott,

I can perform first step 1  i.e. shutdown bulks VM's using the script

# Part 1

$vmNames = Get-Content -Path .\vmnames.txt

$vms = Get-VM -Name $vmNames |

where{$_.PowerState -eq 'PoweredOn'}

Shutdown-VMGuest -VM $vms -Confirm:$false

while((Get-VM -Name $vmNames).PowerState -contains 'PoweredOn'){

sleep 5

}

$vms | Select Name | Export-Csv -Path .\vm-powered-off.csv -NoTypeInformation -UseCulture

Part 2 

https://www.miru.ch/bulk-unregister-register-vms-on-vsphere

But i'm looking for specific list of VM's spread across the cluster

# Part 4

$vmNames = Import-Csv -Path .\vm-powered-off.csv -UseCulture

Get-VM -Name $vmNames.Name |

Start-VM -Confirm:$false