Virtual Machine Disk Resizing Guide

Owned by Sean McDade
Last updated: Feb 16, 2023
3 min read

Overview

This document will guide you through the steps for upgrading your existing ZPC machine in VMWare to meet our new hardware requirements. 

The steps outlined below are for VMware only, ZIRO currently only provides support for VMware. If you are using another VM platform (such as Hyper-V, Hypervisor or Azure VM), please review this guide with your internal VM subject-matter expert before upgrading to ZPC 7.0 or ZPC 8.0)

VM Requirements

Before upgrading your ZPC machine, you may need to upgrade your VM requirements. The below table displays the requirements for ZPC versions ≤ 6.12.2 and versions ≥ 7.0 to 7.4.2 as well as ZPC version ≥ 8.0 :

 

ZPC 6.12.2 and lower

ZPC 7.0 to 7.4.2

ZPC 8.0 and higher

Memory (RAM)

8 GB

8 GB

8 GB

Disk Space

50 GB

120 GB

120 GB to 500 GB

CPU

1 vCPU

2 vCPUs

2 vCPUs

For ZPC version 8 and higher, you will need to assign at least 120 GB of disk space. If you use our Reporting module and are planning to import CDR data from CUCM, please add 3GB for each 1M call records on top of the minimum disk space required (120GB) up to 500GB.

To ease the upgrade process, Stack8-OS will handle repartitioning the HDD and adding the new core automatically once they are allocated from your VM host. 

Updating the Virtual Machine

Remember to upgrade the stack8-console to the latest version before shutting down your VM and updating the settings. 

VMware vCenter (HTML5) 

  1. Log into vCenter with your credentials

  2. Search for the Virtual Machine using the Search tool. You can use the hostname, the FQDN or IP address if they were provided during deployment

  3. Shut down the machine with the "Shut down Guest OS" button in the bar next to the server name

  4. Once the machine is powered off (you should see the preview switching to “Powered Off”), click on "Edit Settings..."

  5. Change the “CPU” value to “2” and the “Hard Disk 1” value to “120 GB” and click “OK”

  6. Wait until the task is completed (Check "Recent Tasks" tab for more details)

Start the machine with the "Power On" button in the bar next to the server name.

UPGRADE COMPLETED

VMware vSphere (Native Windows Client)

Remember to upgrade the stack8-console to the latest version before shutting down your VM and updating the settings. 

 

  1. Log into vSphere with your credentials

  2. Search for the Virtual Machine via the sidebar and select it

  3. Click on the “Summary” tab and click on “Shut Down Guest”

  4. Once the VM has been shut down, select “Edit Settings”

  5. Click on “CPUs” and change the value “Number of virtual sockets” from 1 to 2,

  6. Click on “Hard disk 1” and change the value “Provisioned Size” to “120 GB”

  7. Click “OK” and wait until the task is completed (Check "Recent Tasks" tab for more details)

  8. Start the machine with the "Power On" button under “Summary”.

     

UPGRADE COMPLETED