With PowerCLI, you can start and stop vApps, and modify their properties.

Prerequisites

Verify that you are connected to a vCenter Server system.

Procedure

  1. Get the vApp named VApp and stop it.
    Get-VApp VApp | Stop-VApp -Confirm:$false
  2. Change the name and memory reservation for the vApp.
    Get-VApp VApp | Set-VApp -Name OldVApp -MemReservationGB 2