The NSX Migration for VMware Cloud Director tool generates a password file after the authentication to all components is successful in the first run. This password file location is displayed in the terminal. You can use this file for subsequent runs of the NSX Migration for VMware Cloud Director tool. You can move the password file to a custom location and then use this path to run the migration again. The password changes are updated in the same file unless you provide a different location for the password file.
The NSX Migration for VMware Cloud Director tool generates a password file for preCheck or migration scenario saved with a name: passfile
The NSX Migration for VMware Cloud Director tool generates a password file for the V2TAssessment scenario saved with a name: passfilev2tAssessment