This is the descriptive text for this specific stage of the DVS-deletion workflow. Since the deletion process for this switch has multiple distinct steps, this field is what identifies, in plain language, exactly which one this row documents, e.g. checking for VMs still attached to the DVS versus the actual removal call. A description referencing checking for attached virtual machines identifies this as the safety-check stage that runs before UCS Manager will actually issue the DVS removal to vCenter.