VMware vSphere: Cannot register a virtual machine in inventory: A virtual machine or template having the same name is already registered
a customer had the problem that a virtual machine is shown as invalid or orphaned. After removing from inventory (not from disk) he couldn’t register the vm again: “A virtual machine or template having the same name is already registered”
This could have multiple causes:
Some process are still running which access files from the virtual machine an one ESXi Host. Connect to the Host by ssh.
Normally you can determine the host which locks the file by the vmkfstools command. Where owner is the Host which locks the files. In this example 005056d4f557 is the MAC Address of the Management interfaces of the ESXi Host which held the lock. If the MAC is equal to 000000000000 the file isn’t locked.
~ # vmkfstools -D /509bbbf5-1e637b68-bea0-0043ce612782/debdev/debdev.vmx Lock [type 10c00001 offset 143902720 v 29458, hb offset 3227648 gen 379, mode 1, owner 58e1fa80-df4c8bc2-bb87-005056d4f557 mtime 13631 num 0 gblnum 0 gblgen 0 gblbrk 0] Addr <4, 265, 177>, gen 29281, links 1, type reg, flags 0, uid 0, gid 0, mode 100755 len 3040, nb 1 tbz 0, cow 0, newSinceEpoch 1, zla 2, bs 8192
Determine the world ID (on all ESXi Host), second column and kill all process.
~ # ps|grep yourVM|grep vmx 45168 45020 vmx-vcpu-0:yourVM - debdev SMT /bin/vmx ~ # kill -9 45020
And check if all process are terminated
~ # ps|grep yourVM
Check all ESXi Host for invalid VM configs.
~ # vim-cmd vmsvc/getallvms|grep ski Skipping invalid VM '1527'
See if Id ‘1527’ is your vm
cat /etc/vmware/hostd/vmInventory.xml ~ # cat /etc/vmware/hostd/vmInventory.xml|grep -A 2 1527 <objID>1527</objID> <vmxCfgPath>/vmfs/volumes/509bbbf5-1e637b68-bea0-0043ce612782/debdev/debdev.vmx</vmxCfgPath>
Then reload the VMs config on just one ESXi host which has the invalid VM in its Inventory
~ # vim-cmd vmsvc/reload 1527
Then all other ESXi Host should be updated and the VM appears back in the vSphere Inventory. You do not have to add it manually to inventory by browsing the datastore.
While powering vSphere may ask (Summary Tab in vSphere Client) you if the VM is moved or copied. Select “moved” because you don’t want to change the MAC Address of the virtual machine.