Challenge
Veeam Availability for Nutanix backup job fails with:
Backup VM [ID: 4a89ffc5-68b3-4be0-b117-0591dcec184e' Name: 'MYVM’] failed. Error: Backup was unsuccessful. Preparing VM for backup failed, 1."
Prism Element dashboard shows the following failed tasks:
The following conditions are met:
- Nutanix AOS is upgraded up to 5.8.0.1 within STS (Short Term Support) release branch;
- Affinity rules are configured for the affected machines:
Cause
This is a known Nutanix issue and is tracked by Nutanix as an internal bug ENG-163615 which was discovered after the release of Nutanix AOS 5.6.1.
Solution
Upgrade to AOS 5.9.1 where ENG-163615 was resolved. If an upgrade is not an option, you may disable the host affinity rules for the affected VMs as a workaround.
LTS (Long Term Support) release branch is not affected by this issue at the moment.