Redistribute VMs according to a stored mapping
This is a quick one. Sometimes you need to evacuate VMs from a host, do some maintenance, and redistribute the VMs to the originating host. This can be annoying, especially if you don’t have a vSphere Enterprise Plus license with DRS, DRS groups etc. These few PowerShell lines may help you.
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| ### Discover all VMs in a specific vSphere Cluster | |
| $AllVMs = Get-Cluster PROD | Get-VM | ? { $_.Name -notlike 'vCLS*' } | |
| ### Create empty hash table | |
| $hashtable = @{} | |
| ### Fill hash table with a mapping VM <> host | |
| foreach ($i in $AllVMs) { | |
| $hashtable.add($i.name, $i.vmhost) | |
| } | |
| ### Move VM to the original host | |
| foreach ($i in $hashtable.GetEnumerator()) { | |
| move-vm -VM $($i.Name) -Destination $($i.Value) -RunAsync | |
| } |