It may be helpful to determine what commands were run previously to troubleshoot a current issue. Let’s first understand what aCLIand nCLI command utilities are.
aCLI: utility to create, modify and manage VMs in AHV.
nCLI: utility to manage cluster operations.
The history files are hidden and are persistent across reboots. Below article explains how to retrieve commands history:
https://portal.nutanix.com/page/documents/kbs/details/?targetId=kA032000000TSsjCAG
Also, take a look at how to check cluster upgrade history:
https://next.nutanix.com/discussion-forum-14/checking-cluster-upgrade-history-37417