Product Version: 7.0
Last Modified: 22 Feb 2016
Problem
Upon backup, replication or recovery job, one of the following messages is displayed.
VMware CBT / Hyper-V RCT is not supported by the VM. Backup / Replication / Recovery will be performed using proprietary change tracking method. The job may take longer to complete.
or
Backup / Replication / Recovery of the VM has failed. VMware CBT / Hyper-V RCT is not supported by this VM.
Background
VMware CBT (Changed Block Tracking) and Hyper-V RCT (Resilient Change Tracking) are the technologies to track changes on the virtual machines. NAKIVO Backup & Replication uses these technologies to create incremental backups faster. If the usage is not possible, NAKIVO Backup & Replication uses proprietary change tracking method which works slower.
VMware CBT is supported on ESXi hosts v4.1 or later and VMs with Virtual Hardware version 7 or later.
Hyper-V RCT is supported on Hyper-V 2016 Server and virtual machine configuration version 8.
Solution
Consider upgrading hypervisor and virtual hardware (for VMware) or virtual machine configuration (for Hyper-V).