Changing CPU and Memory for Virtual Machine with Non-Modifiable VM Sizing Policy in VMware Cloud Director

Products

• VMware Cloud Director

Issue/Introduction

In the VMware Cloud Director Tenant Portal, an administrator or user attempts to modify the CPU or memory of a Virtual Machine, but the hardware options are greyed out or unselectable. 

Environment

VMware Cloud Director 10.6.x

Cause

This issue is caused by the Virtual Machine inheriting a non-modifiable sizing policy.
When a vApp Template is created to a Catalog without enabling the "Modifiable" checkbox in the "TAG WITH COMPUTE POLICIES" section, any Virtual Machine deployed from that template is locked to the pre-defined CPU and memory settings. 

Resolution

Since the sizing policy on the existing Virtual Machine cannot be modified directly, a workaround is required by copying of the vApp instance and assigning it a modifiable policy.

Workaround

1. Copy the vApp. 
   For details, refer to the following : Copy a Stopped vApp to Another Virtual Data Center in the VMware Cloud Director Tenant Portal
   
   
2. Switch to a different sizing policy and then adjust CPU and Memory.
   For details, refer to the following : Change the Hardware Properties of a Virtual Machine

Note

•  When operating both the source and copied virtual machines simultaneously within the same network, IP/MAC address conflicts may occur. This can lead to power-on failures in VMware Cloud Director.
   For further information, refer to the following KB : "The following IP/MAC addresses have already been used by running virtual machines: MAC addresses" error when powering on a virtual machine in VMware Cloud Director

 

Additional Information

Related KB : Unable to select a Placement Policy or a Sizing Policy for a Virtual Machine