How can HA drivers for a Database VM be upgraded?

HA drivers are software components that enable high availability features for database VMs, such as failover, fencing, and heartbeat. HA drivers can be upgraded using the Life Cycle Management (LCM) feature of Nutanix Prism. LCM can detect the available updates for HA drivers and apply them to the database VMs in a non-disruptive manner. LCM can also perform health checks and pre-upgrade validations to ensure the successful completion of the upgrade process. One-click software upgrade is a feature of Nutanix Era that allows you to upgrade the Era software itself, not the HA drivers. Database VM OS patching is a feature of Nutanix Era that allows you to patch the operating system of the database VMs, not the HA drivers. Database software patching is a feature of Nutanix Era that allows you to patch the database software of the database VMs, not the HA drivers. References:

Nutanix Database Management & Automation Training Course, Module 2: Deploying and Configuring an NDB Solution, Lesson 3: Configuring NDB High Availability, Slide 9: HA Driver Upgrade

Nutanix Certified Professional - Database Automation (NCP-DB) 5 Exam, Section 4: Operate and Maintain an NDB Environment, Objective 4.4: Upgrade databases