HP P2000 G3 Cli Reference Manual page 46

Restore the original certificate that existed before the custom one was generated:
# create certificate restore
To make the certificate change take effect you must restart both Management
Controllers by entering "restart mc both". Press Enter to acknowledge this
message.
Success: Command completed successfully. - Security certificate restored.
(2012-10-04 09:31:58)
See also • restart mc both
• show certificate
46 Alphabetical list of commands