Placing active data on IBM Flash Systems will accelerate your storage performance while placing inactive data on IBM Tape using IBM Spectrum Archive Enterprise Edition will lower your overall storage costs. It's the next generation of storage.

Related IBM Redbooks: 

IBM Spectrum Archive Enterprise Edition V1.3.0: Installation and Configuration Guide, SG24-8333

 IBM TS4500 R7 Tape Library Guide, SG24-8235 

 IBM Flash storage Redbooks