We're in the process of implementing a new backup software. Since an agent cannot be installed on the vWLAN, we have to use its VM backup which uses change block tracking (CBT). CBT requires a minimum VM hardware version of 7. Currently the vWLAN controllers, including the latest 2.8.0 release, deploy with VM hardware version 4.
Is this done for VMware compatibility? Is there a reason why the VM hardware version cannot be changed to at least version 7?
It has stayed the same based off how we have continually built the OVAs. Our team is currently looking into updating an OVA to a later hardware version. I should have a better idea of a time frame in the next few days and I will definitely let you know.
I would discourage attempting to upgrade it yourself as we don't have testing a this point to confirm it would work properly.
ADTRAN Product Support Engineer