Storage virtualization solutions such as virtual tape libraries (VTLs) that incorporate data deduplication and replication are great for doing disk-to-disk backup while providing transparency to existing data protection tools. Also look for storage virtualization tools that can abstract storage from the same or different vendors for investment protection and enabling of simplified management. Other tools to consider include physical to virtual (PtV) and virtual to physical (VtP) along with data protection tools for virtual desktops and remote office branch office (ROBO) environments.
In the end though, the best tools are going to be those that fit your specific needs and requirements without introducing any additional complexity.
This was first published in September 2009