You may need to modify the names of the CVMs displayed in Prism to match the block/serial/hostname or however you reference the node
Note:
The CVM name should always start with NTNX- and end with -CVM
1. SSH into the CVM and shut it down
cvm_shutdown -h now
2. Enter the following from the AHV host
virsh list --all virsh domrename NTNX-Old_Name_Here-CVM NTNX-New_Name_Here-CVM
3. Start the CVM
virsh start NEW_NAME
4. Configure autostart in KVM so the CVM boots up with the host
virsh autostart NTNX-New_name_here-CVM
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