An administrator needs to patch multiple Microsoft SQL Server databases managed by NDB.

Maintenance Windows simplify coordinated patching by allowing administrators to define when operating-system or database software updates should run and associate multiple database server VMs with that schedule. At execution time, NDB connects to the associated servers, performs its prechecks, identifies applicable patching tasks, and updates the database software to the recommended published software profile version. Software profile versions contain the target software or patch level, but they do not independently coordinate patch execution across multiple servers. Database Groups primarily provide collective protection, snapshot, log-management, clone, and recovery behavior for related SQL Server databases; they are not the scheduling mechanism for fleet patching. Database Cloning is unrelated to software maintenance. The official Nutanix Maintenance Window documentation states that database patching performed through a maintenance window updates databases to the recommended software profile version.