VM Migration error between hosts


VM migration error from one host to another host:

Error 1

vm-migration-error-1

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003805

When I try to migrate a VM from one host to another host which is on a different cluster, I got the above error. Per VMware, this can be ignored.

Error 2

 

migration-error-cd-uses-backing

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003794

Second error can also be ignored per VMware.

Advertisements

If vCenter goes down – what will work and what doesn’t ?


Things that continue to work if vCenter is down:

  • Fault Tolerance will continue to work for the configured VMs. However, in case of a failover, no new secondary VMs will be created.
  • HA will continue to work
  • You can take snapshot of the VM by connecting to the ESXi host using vSphere client
  • VMs will continue to work
  • dvSwitch will continue to work
  • vSwitch will continue to work

What will not work?

  • vMotion will not work since vMotion requires vCenter server
  • Storage vMotion will not work
  • DRS will not work since DRS requires vMotion.
  • You cannot deploy VMs from templates
  • You cannot clone a VM

 

https://community.spiceworks.com/topic/496763-does-vmotion-drs-and-ha-function-when-virtual-center-is-down

Invalid configuration for device ‘0’


Today one of the user reported that he is unable to connect to a VM. When I checked (VM -> edit settings -> I found the Network card was not connected. It was unchecked). I was unable to ‘check’ it. When I tried to check, I got the below error: Invalid configuration for device ‘0’.

vm nw issue

Solution:

VM -> Edit settings -> Remove the NIC card -> ok

VM -> Edit settings -> Add a NIC card -> ok

This resolved the issue.

Unable to connect to vCenter Inventory service


If you get error while trying to login Vcenter via web UI and get this error.

Vcenter inventory service

 

If you click OK, you will find the Vcenter UI without any VMs. It will be all blank.  You may need to check the service status of your Vcenter Inventory as the name suggests. In our environment, the Vcenter is an appliance. Also it is a VM. If your Vcenter is a Windows machine / VM then you can check services.msc.

To resolve this issue and you have Vcenter appliance. Open a Web browser and type the Vcenter IP with port 5480 (xxx.xxx.xxx.xxx:5480) and login.

vcenter login

Here you can start the inventory service as shown below:

inventory service

Identify your Vcenter (Appliance) IP address:

Way 1:

Strangely though Vpshere client functions without any issue and only Web UI faces this issue. Login to Vsphere client,  and open the Vcenter appliance console.

Vcenter IP

Way 2:

This is a simplest way. Click the Vcenter appliance in the Vsphere client and click summary. You can see the IP address.

identify vcenter ip 2