Article number
000004326
Affected Versions
All
Source Hypervisor
All
Target Hypervisor
All
Problem with Failover Test due to CDROM first on boot order
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Summary
This article covers a scenario when replicating from or to a VMware site where one or more VMs in the failed over VPG has a CDROM drive set as first in boot order configuration of the VM.
The result may be a successful Failover task, but the VM may not boot up properly or in rare occasions, the failover test task fails.
The result may be a successful Failover task, but the VM may not boot up properly or in rare occasions, the failover test task fails.
Root Cause
When replicating from a VMware > VMware environment, if a protected virtual machine is configured with CDROM devices, recovery virtual machine will also configured with CDROM devices.
Zerto, however, does not replicate the disc image if one exists in the protected site. Therefore if the VM is set to boot from CDROM, it may not boot up properly.
NOTE: In many cases, the VM will use the next device to boot from assuming the CDROM is not available.
Symptoms
If in the failed over VM(s) the CDROM drive is not set as first in boot order, the VM may not boot up properly, or the Failover Test for a VPG could fail with the following error:
Zerto:Protection group failover test. Failure.
Failed: VM DATA01 - testing recovery could not
be created Message: A specified parameter was
not correct. configSpec.bootOptions.bootOrder.
Fault: Vim25Api.InvalidArgument.
Zerto:Protection group failover test. Failure.
Failed: VM DATA01 - testing recovery could not
be created Message: A specified parameter was
not correct. configSpec.bootOptions.bootOrder.
Fault: Vim25Api.InvalidArgument.
Solution
Ensure that the VM is not set to boot off of the CDROM, otherwise, it will need to be manually configured for the recovery VM.
Workaround:
Remove the CDROM drives from protected VM boot order configuration.
In order to do so, please refer to the following VMWare KB:
Workaround:
Remove the CDROM drives from protected VM boot order configuration.
In order to do so, please refer to the following VMWare KB:
Changing the boot order of a virtual machine using vmx options (2011654)