To upgrade to NSM 3.2.0 when data is backed up in external 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.
Shutdown the NSM 3.1.1HF1. Refer to Shutdown the System.
Unmount the Hard disk 2 from NSM 3.1.1HF1. Refer Unmounting the Hard Disk.
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.
Mount the disk on NSM 3.2.0. Refer Mounting the Hard Disk.