During the upgrade process, Lifecycle Management takes the following backups:
PSC VM snapshot
vCenter VM snapshot
ESXi configuration backup.
Backup directory on SDDC Manager Utility VM is /backup/lcm/ESX. Backup for each ESXi host is stored in its guid (stored in database). Each backup is in a date sub folder. An example ESXi backup file name is /backup/lcm/ESX/f32b407e-8fdb-4999-ab80-2082003586fb/02022017014114/backup/firmwareConfig865759412960483871.tgz.
NSX configuration backup.
Backup directory on SDDC Manager Utility VM is /backup. File names have the prefix evo-nsx-domain_id_date. An example NSX backup file name is /backup/evo-nsx-888bcb7f-30d0-3aee-9291-b7777052a1ac-01_00_00_Tue07Feb2017.
To access the backup directory, login to the SDDC Manager Utility VM as root. See Look Up Account Credentials.
For best practice information, refer to the documentation for individual VMware products.
Upgrading Cloud Foundation is a multi step process. You must follow each step in the order in which it is documented.