What is the primary function of DiskXtender?

A.
Provide cost-effective retention, protection, and disposition of a wide range of fixed content

B.
Migrate information to the most cost-effective storage tier based on automated policies

C.
Provide transparent hardware control and support for removable media in standalone and library drives for a variety of media and device types

D.
Automatically collect, organize, retain, and retrieve email messages and attachments