Which Unity service task is used to reinstall the root operating system while leaving the user’s data intact?

A.
Restore the Management server

B.
Reimage the Storage Processor

C.
Restore the Management software

D.
Reinitialize the storage system

Explanation:
Re-image a storage processor (SP) to safely fix problems with the system software that could not be resolved
by rebooting the SP. Re-imaging analyzes the system software for errors and attempts to correct them instantly.
Re-image an SP from the Service System page.
Your configuration settings and stored files will not be changed.
https://community.emc.com/docs/DOC-40315