To upgrade to NSM 3.2.0 when data is backed up in internal disk
Login to the NSM 3.1.1HF1 instance in a web browser.
Navigate to System | Dashboard.
Copy the Serial Number present under SYSTEM INFORMATION.
Export the backup file and store in your local directory. Refer Export a File System Backup.
Shutdown the NSM 3.1.1HF1. Refer to Shutdown the System.
Perform a fresh installation of NSM On-Premises version 3.2.0. Refer Installing NSM on ESXi Server
Register NSM On-Premises version 3.2.0 with same serial number as 3.1.1HF1. Refer Registering NSM.
Login to NSM 3.2.0 instance in web browser.
Import the backup. Refer Import a NSM File System Backup.