IBM Magstar 3570, C-XL Model, 7GB Tape IBM 3570 tapes bring reliable performance to backup and data recall efforts. With an industry-leading design that enables exceptionally fast data access, IBM 3570 C-XL Magstar MP tape cartridges can be used as an alternative to direct access storage for some types of near-online applications that require high performance data access. The IBM 3570 CXL offers 7 GB of native space making it a great solution for mid-range server and storage-networked environments. To facilitate fast data access, the 3570 C-XL tape cartridge by IBM contains two tape spools with the tape positioned at its midpoint.