The backup procedure is mentioned as a part of the upgrade procedure in the guide.
https://docops.ca.com/ca-identity-suite/14-1/EN/upgrading/upgrading-ca-identity-suite-virtual-appliance
1. Full database backup for all databases/schemas used by Identity Manager, Identity Governance and Identity Portal.
A database backup is mandatory for rollback!
2. Identity Manager environment (IME) backup using the Identity Manager Management console? Environments? identityEnv ? Export
3. Any custom files on the file-system (these normally reside on /opt/CA/VirtualAppliance/custom/<product name>)
4. Virtual Machine Snapshot
Regards
Sheryn