VMware VLM3-ENG-CP User Guide - Page 153

Duplicate IP Address Errors Appear, Addition of SCSI Virtual Hard Disk Fails

Page 153 highlights

Chapter 8 Troubleshooting Lab Manager Duplicate IP Address Errors Appear Problem After creating a baseline configuration and saving it to the configuration library, I check it out and save a duplicate configuration to the library. From the configuration library, I navigate to the details page for the duplicate configuration and open the properties page for each virtual machine to modify the IP and MAC addresses. I deploy the original configuration and then deploy the duplicate configuration. The second configuration fails to deploy and generates "duplicate IP address" errors. Solution You modified the information that Lab Manager has about the virtual machines, but you did not change the actual IP and MAC addresses. This change requires a manual process through each virtual machine console. You would have to modify both the IP and MAC addresses to avoid network errors. Instead of manually changing IP and MAC addresses, consider easier options to avoid duplicate IP address errors: „ Deploy your configurations in fenced mode. Lab Manager gives each virtual machine in a fenced configuration a unique, external IP address. Subnet broadcasts do not travel outside the fence. If you want two configurations to talk to each other using broadcasts, refer to the next option. „ In the baseline configuration, create a machine template from each virtual machine and install LM Tools on it. To build the duplicate configuration, create the virtual machines from these templates. You can deploy both configurations in unfenced mode without IP address errors because LM Tools assigns unique IP addresses from the IP pool. The virtual machines in the configuration can respond to subnet broadcasts. Addition of SCSI Virtual Hard Disk Fails Problem When I add a new SCSI virtual hard disk to a virtual machine, an operating system message appears because drivers for this device are missing. Solution Download and install the appropriate drivers from http://www.vmware.com/download. Contact VMware for support. Mouse Navigation on Virtual Machine Console Fails Problem When I move the pointer into a virtual machine console, the pointer appears as a small dot. I cannot move it out of the window and use it on the host operating system. VMware, Inc. 153

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VMware, Inc.
153
Chapter 8
Troubleshooting Lab Manager
Duplicate IP Address Errors Appear
Problem
After creating a baseline configuration and saving it to the configuration
library, I check it out and save a duplicate configuration to the library.
From the configuration library, I navigate to the details page for the duplicate
configuration and open the properties page for each virtual machine to modify the IP
and MAC addresses. I deploy the original configuration and then deploy the duplicate
configuration. The second configuration fails to deploy and generates “duplicate IP
address” errors.
Solution
You modified the information that Lab Manager has about the virtual
machines, but you did not change the actual IP and MAC addresses. This change
requires a manual process through each virtual machine console. You would have to
modify both the IP and MAC addresses to avoid network errors.
Instead of manually changing IP and MAC addresses, consider easier options to avoid
duplicate IP address errors:
Deploy your configurations in fenced mode. Lab Manager gives each virtual
machine in a fenced configuration a unique, external IP address. Subnet broadcasts
do not travel outside the fence. If you want two configurations to talk to each other
using broadcasts, refer to the next option.
In the baseline configuration, create a machine template from each virtual machine
and install LM Tools on it. To build the duplicate configuration, create the virtual
machines from these templates. You can deploy both configurations in unfenced
mode without IP address errors because LM Tools assigns unique IP addresses
from the IP pool. The virtual machines in the configuration can respond to subnet
broadcasts.
Addition of SCSI Virtual Hard Disk Fails
Problem
When I add a new SCSI virtual hard disk to a virtual machine, an operating
system message appears because drivers for this device are missing.
Solution
Download and install the appropriate drivers from
. Contact VMware for support.
Mouse Navigation on Virtual Machine Console Fails
Problem
When I move the pointer into a virtual machine console, the pointer appears
as a small dot. I cannot move it out of the window and use it on the host operating
system.