I was recently tasked with upgrading a legacy vCenter environment to cater for an upgrade to Trend Deep Security Manager. As I was reviewing the environment I noticed that one of the vCenter servers was a physical server running on an IBM HS22 blade. This server is part of a linked-mode vCenter and as the second vCenter was virtualized it caught me by surprise that this one wasn’t. Before beginning the work to upgrade vCenter from 5.0 to 5.5 and all its component I decided to virtualize the physical vCenter server to make management easier down the road and to eliminate the reliance on physical hardware outside of the ESXi hosts themselves.

As all ESXi hosts were being managed by the vCenter I was trying to convert I had to remove on host from the production cluster and isolate it so that it could be managed independently and could be used as the destination for the P2V in the vCenter Standalone Converter.



Step 1: Download vCenter Standalone Converter 5.5 from VMware site

1.1: Go to https://my.vmware.com/web/vmware/info/slug/infrastructure_operations_management/vmware_vcenter_converter_standalone/5_5 and download the installation file.

Step 2: Isolate an ESXi host to use as the destination of the conversion

2.1: Put the ESXi host in maintenance mode. Then right-click and Disconnect from vCenter. It will appear in italics and with a red X through it.

vCenter P2V step 1

2.2: Log on directly to the ESXi host using the root account

vCenter Server P2V Step 2

2.3: Exit maintenance mode and ensure you don’t get a warning that the host is being managed by an instance of vCenter

vCenter Server P2V Step 3

Step 3:  Backup all databases to backup location

3.1: Log onto the SQL server (in this instance it’s the vCenter server) and open SQL Management Studio

vCenter Server P2V Step 4

3.2: Stop the vCenter services before capturing the backup

vCenter Server P2V Step 5

3.3: In SQL Management Studio select the database, right-click and select Tasks -> Back Up.

vCenter Server P2V Step 6

3.4: Next select Full backup and add a destination for the backup file.
vCenter Server P2V Step 7

3.5: Click Ok to begin backup. The backup will then complete successfully

vCenter Server P2V Step 8

3.6: Once all the databases are backup up continue with the next steps. You can also now stop all of the SQL services in preparation for the P2V

vCenter Server P2V Step 9


Step 4: Backup the SSL certificates

4.1: From the C drives: C:\ProgramData\VMware\VMware VirtualCenter\SSL

vCenter Server P2V Step 10

Step 5: Backup the ADAM instance DATA

5.1: Click Start, right-click Command Prompt, then click Run as administrator to open a command prompt.

vCenter Server P2V Step 11

5.2: Run the command:


At the dsdbutil: prompt, run the command:

activate instance VMwareVCMSDS

Run this command to open the ifm prompt:


At the ifm: prompt, run this command for the type of installation media that you want to create:

create full F:ADAM_BackupVMwareVCMSDS

vCenter Server P2V Step 125.3: Verify that the file has exported

vCenter Server P2V Step 13


Step 6: Verify the local login account

6.1: Verify that you can access the server via a local admin account. This will make sure that once you p2V that you can access the server again. Log off the server and log on again with the administrator account. If you can’t connect then create a new local user account



Step 7: Convert the server using VMware Converter

7.1: Select Convert machine

vCenter Server P2V Step 14

7.2: Select Powered-On machine and add the details of the remote machine. Use the domain credentials to connect. Click Next

vCenter Server P2V Step 15

7.3: Select Yes to Continue

vCenter Server P2V Step 16

7.4: If you get an alert about not being able to install the agent you’ll need to do the following on the physical vCenter server:

vCenter Server P2V Step 17

  • Check the server services is running
  • Check the firewalls have been turned off
  • Disable UAC

If the above is ok then copy the converter agent file from your computer to the client computer. The agent can be located here:

C:Program Files (x86)VMwareVMware vCenter Converter StandaloneVMware-Converter-Agent.exe

7.5: On the physical vCenter server run the installation of the agent

vCenter Server P2V Step 18

7.6: Click Next

vCenter Server P2V Step 19

7.7: Click Next

vCenter Server P2V Step 20

7.8: Accept the terms and click Next

vCenter Server P2V Step 21

7.9: Click Next

vCenter Server P2V Step 22

7.10: Leave the default port and click Next

vCenter Server P2V Step 23

7.11: Click Install

vCenter Server P2V Step 24

7.12:  Click Finish

vCenter Server P2V Step 25

7.13: Now go back to Standalone converter and click Next. You will get a pop-up about certificates. Click Ignore.

vCenter Server P2V Step 26

7.14: Select the VMware Infrastructure virtual machine and enter the details of the ESX host disconnected from vCenter earlier. Enter the root credentials and click Next

vCenter Server P2V Step 27

7.15: When you get prompted for the certificate click Ignore

vCenter Server P2V Step 28


7.16: Verify the name you want to give the server. It should have the same name as the current server. Any other VMs that reside on the connected ESX host will also appear here. Click Next.

vCenter Server P2V Step 29

7.17: Select a datastore of where to place the new VM. You can also select a resource pool if required. In this case I’m going to stick the VM on the root level. Also, select the virtual machine version. This will be dictated by the version of ESXi running on the host. Click Next

vCenter Server P2V Step 30

7.18: Click Edit beside Device and on the Memory tab select 8GB instead of the current amount

vCenter Server P2V Step 31

7.19: You can change the amount of CPU here also but as per the recommendation it’s best to wait until the conversion has been completed and edit the VM files afterwards

vCenter Server P2V Step 32

7.20: In this instance we have 3 NICs, 2 NICs that are teamed using Broadcom software. Select the network to place them on, I’ve chosen Isolated Network for the conversion phase and disable Connect at power-on. This will mean there won’t be a clash on the network and give you time to fix up the teamed NICs so only one NIC actually exists. Set the controller type to VMXNET3

vCenter Server P2V Step 33

7.21:  Click Edit on Services. Change all of the SQL and vCenter services to be disabled on the destination services tab so they do not start automatically on boot up. They can be started manually once the VM has been reconfigured and optimized

vCenter Server P2V Step 347.22: Select Advanced Options and select Synchronize changes and run immediately after cloning

vCenter Server P2V Step 35

7.23: On the Post-Conversion tab select the following:

  • Power On destination machine
  • Power Off source machine
  • Install VMware Tools on the destination virtual machine
  • Remove System Restore checkpoints on destination

Reconfigure destination virtual machine

vCenter Server P2V Step 367.24: Select Next. Verify that the summary is correct and click Finish

vCenter Server P2V Step 37

7.25: This will then begin the job

vCenter Server P2V Step 387.26: Keep an eye on the Log highlights to see what is going on. You can also log on directly to the ESXi host to see what is happening to the VM. I would advise having a KVM console open to the physical server to see when it shuts down and also a console to the VM from the vSphere client to see when it comes online.  Depending on the size of the disks the conversion can take quite some time

vCenter Server P2V Step 39


Step 8: Post Virtualization Cleanup

8.1: Once the conversion has taken place you will can log onto the converted server using the local admin account and remove the following:

  • USB Controller
  • Audio devices
  • Any hardware specific software
  • Floppy drive

And then also break the NIC teaming and remove unnecessary vNICs.

8.2: Boot the server and in the BIOS disable the:

  • Serial devices
  • COM devices
  • LTP devices
  • Floppy Disk Controllers

8.3: Tidy Windows Device Manager, start command prompt as an administrator and

run the “set devmgr_show_nonpresent_devices=1” and then “start devmgmt.msc”

  • Look for disabled devices; evaluate the need for each device and resolve as required.
  • Look for devices with warnings; evaluate the need for each device and resolve as required.

8.4: Remove Audio devices, if any.

8.5: Attach the vNIC to the network, set all the services to start automatically and reboot the server

8.6: Next log into vCenter as your normal account. Right-click on the host that vCenter is residing upon and click Connect

vCenter Server P2V Step 40

8.7: Click Yes

vCenter Server P2V Step 418.8: Newly virtualized server now appears in the system

vCenter Server P2V Step 42And now your vCenter server has been converted from a physical server to a virtual one with no impact to any of your end users. 

4 thoughts on “How To: P2V of vCenter Server

  1. Pingback: vCenter Server Upgrade Finished | nujakcities

  2. Pingback: How to P2v existing vcenter – yet another sysadmin blog

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.