For 11G and 12G PowerEdge systems, the backup and restore methods have an optional parameter to enter a passphrase. If a passphrase is used, it must be correctly entered in order for the restore operation to be successful. Passphrases shall be validated against the following rules:

1.         Must be 8-32 characters in length

2.         Must contain 1 Uppercase letter

3.         Must contain 1 Lowercase letter

4.         Must contain 1 Number

5.         Must contain 1 Special character

See more about Lifecycle Controller (LC), here.

See more about Backup and Restore in the LC Best Practice Guide, here.